From smi_west at listsmart.osl.state.or.us Tue Feb 1 13:13:01 2011 From: smi_west at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Tue, 1 Feb 2011 13:13:01 -0800 Subject: SMI West (Smoke Management Instructions) (no subject) Message-ID: SMOKE MANAGEMENT FORECAST AND INSTRUCTIONS SALEM FORESTRY WEATHER CENTER OREGON DEPARTMENT OF FORESTRY ISSUED: Tuesday, February 1, 2011 2:30 PM Jim Little 1. DISCUSSION AND FORECAST FOR THE WESTERN OREGON AREA FORECAST ZONES 601-623 WEDNESDAY Wednesday will see a strong upper level ridge over the area with its axis from well off the California coast to southern Alberta. Upper level flow over the region will be northerly. At the surface a thermal trough will be offshore but will be shifting eastward late in the day. Surface winds will be mostly light northeasterly over the region. Generally poor smoke dispersal conditions continue with mixing heights mostly in the 1000 to 2000 foot range. An air stagnation advisory remains in effect in the Rogue Valley. OUTLOOK (THURSDAY - SATURDAY) The upper ridge broadens and intensifies for continued dry weather on Thursday. Low level flow shifts to onshore or southwesterly in the north and to northerly for southern zones. Mixing heights improve slightly. On Friday a weak system moves into Washington with a chance of sprinkles near the Columbia River. Expect a slight improvement in mixing heights in the Cascades otherwise little change. Saturday expect continued poor ventilation conditions with mixing heights generally around 2000 feet. 2. DISPERSION Zone 601, 602, 603 and 612 (North Coast Range): MORNING Mixing height near 1000 ft. Transport wind ENE to ESE at 6 - 10 mph. Surface wind light and variable and controlled by local terrain. AFTERNOON Mixing height 1000 - 1500 ft. Transport wind NE to E at 4 - 8 mph. Surface wind similar to morning. EVENING Mixing height lowers below 1000 ft. Transport wind similar to afternoon. Surface wind similar to afternoon. Zone 605-611 (North Cascades): MORNING Mixing height below 1000 ft. Transport wind light and variable. Surface wind light and variable and controlled by local terrain. AFTERNOON Mixing height 1000 - 1800 ft. Transport wind similar to morning. Surface wind similar to morning. EVENING Mixing height lowers below 1000 ft. Transport wind similar to afternoon. Surface wind similar to afternoon. Zone 615-620 (South Coast Range): MORNING Mixing height 1000 - 1600 ft. Transport wind ESE to SSE at 8 - 12 mph. Surface wind ESE to SSE at 6 - 10 mph. AFTERNOON Mixing height 1300 - 2300 ft. Transport wind becomes light and variable. Surface wind becomes light and variable and controlled by local terrain. EVENING Mixing height lowers below 1000 ft. Transport wind similar to afternoon. Surface wind similar to afternoon. Zone 616-623 (South Cascades): MORNING Mixing height below 1000 ft. Transport wind E to SE at 4 - 8 mph. Surface wind light and variable and controlled by local terrain. AFTERNOON Mixing height rising to 1400 - 2400 ft. Transport wind becomes light and variable. Surface wind similar to morning. EVENING Mixing height lowers below 1000 ft. Transport wind similar to afternoon. Surface wind similar to afternoon. OUTLOOK: THURSDAY Mixing height below 1000 ft during the morning rising to 1200 to 2200 ft during the afternoon. Transport wind light and variable during the morning becoming W to NW at 5 - 9 mph during the afternoon. Surface wind light and variable during the morning becoming W to NW at 4 - 8 mph during the afternoon. FRIDAY Mixing height below 1000 ft during the morning rising to 1000 to 2000 ft during the afternoon. Transport wind NNW to NNE at 4 - 8 mph. Surface wind E to SSE at 4 - 8 mph during the morning becoming NW to N at 4 - 8 mph during the afternoon. SATURDAY Mixing height below 1000 ft during the morning rising to 1600 to 2600 ft during the afternoon. Transport wind NW to NNE at 6 - 10 mph. Surface wind WNW to NNW at 4 - 8 mph during the morning becoming light and variable during the afternoon. 3. BURNING INSTRUCTIONS FOR ALL ZONES IN THE WESTERN OREGON AREA These instructions are valid for burning conducted on Wednesday, February 2, 2011. ================================================================= Coast Range Zone 601, 602, 603, 612, 618, and 619 Use standard guidance matrix. (See section 5 below.) Avoid burning directly upwind of coastal SSRAs. Zone 615 and 616 west of R8W Units should be 750 tons or less, spaced 15 miles apart, and 15 miles from downwind SSRAs. Zone 616 east of R9W Units should be 500 tons or less, spaced 15 miles apart, and 15 miles from downwind SSRAs. Zone 620 No burning allowed. Cascades Zone 605, 606, 620, and 622 No burning allowed. Zone 607, 608, and 616 Units should be 500 tons or less, spaced 15 miles apart, and 15 miles from downwind SSRAs. Zone 609, 610, and 611 Units should be 1000 tons or less, spaced 15 miles apart, and 15 miles from downwind SSRAs. Zone 617 and 623 Use standard guidance matrix. (See section 5 below.) Siskiyous Units should be 750 tons or less, spaced 15 miles apart, and 15 miles from downwind SSRAs. ============================================================== 4. SPECIAL NOTE: Call the smoke management duty forecaster at (503) 945-7401 to discuss burning. Please do not call individual's numbers to discuss daily burning. If the forecaster is not available, leave a message and he will return your call as soon as possible. Avoid calling between 2 to 2:30 p.m. The forecast is available on the Internet at: http://oregon.gov/ODF/FIRE/fire.shtml/#Smoke_Management Please ensure your units have been planned and accomplished by checking: http://oregon.gov/ODF/FIRE/SMP/dailysmoke.shtml 5. STANDARD GUIDANCE MATRIX: * Greater than 5000 ft mixing height: No burning within 5 miles of downwind SSRA. Maximum 100 tons per mile from downwind SSRA. Example: 500 ton maximum allowed if burned 5 miles from downwind SSRA. * 3000 - 5000 ft mixing height: No burning within 10 miles of downwind SSRA. Maximum 75 tons per mile from downwind SSRA. Example: 750 ton maximum allowed if burned 10 miles from downwind SSRA. * Less than 3000 ft mixing height: No burning within 15 miles of downwind SSRA. Maximum 50 tons per mile from downwind SSRA. Example: 750 ton maximum allowed if burned 15 miles from downwind SSRA. * All exceptions must be coordinated with the duty forecaster prior to ignition. -------------- next part -------------- An HTML attachment was scrubbed... URL: From smi_west at listsmart.osl.state.or.us Wed Feb 2 14:11:59 2011 From: smi_west at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Wed, 2 Feb 2011 14:11:59 -0800 Subject: SMI West (Smoke Management Instructions) SMOKE MANAGEMENT FORECAST AND INSTRUCTIONS Message-ID: SMOKE MANAGEMENT FORECAST AND INSTRUCTIONS SALEM FORESTRY WEATHER CENTER OREGON DEPARTMENT OF FORESTRY ISSUED: Wednesday, February 2, 2011 2:30 PM Jim Little 1. DISCUSSION AND FORECAST FOR THE WESTERN OREGON AREA FORECAST ZONES 601-623 THURSDAY The persistent upper level ridge of high pressure over the region will flatten somewhat overnight Wednesday night and Thursday as a short wave moves across the top. Models show moisture associated with this disturbance moving into Washington during the day on Thursday with perhaps some showers dropping just south of the Columbia River to dampen portions of extreme northwest Oregon late in the afternoon. The short wave will also push the thermal trough eastward and low level flow will turn weakly onshore and northern zones will see a westerly component to transport winds. The south coast range will see some onshore or westerly flow by afternoon from about Coos Bay northward but the rest of southwest Oregon will see continued light winds, but switching to north or northwesterly. The Air Stagnation Advisory remains in effect for the Rogue Valley and the Klamath Basin. Mixing heights will continue quite low with mostly poor ventilation conditions. EXTENDED OUTLOOK (FRIDAY - SUNDAY) Upper air forecast charts show additional flattening for the upper ridge Friday and models show some light rain over the northwest portion of the state including the northern Cascades. Elsewhere expect just increased cloudiness. Low level flow remains onshore. Mixing heights improve slightly and smoke dispersions may improve to marginal some locations. On Saturday the upper ridge retreats to off the California coast. Precipitation penetrates farther south with a chance of rain into southwestern Oregon. Mixing heights creep slightly higher with most areas into the marginal category for smoke dispersal. Much of western Oregon will see a westerly transport wind, however southwest Oregon will see more northwesterly transports. The upper ridge builds northward again on Sunday and the atmosphere becomes more stable will mixing heights lowering again. Low level flow remains light onshore with generally southwesterly transports in the north and northwesterly transports in the south. 2. DISPERSION Zone 601, 602, 603 and 612 (North Coast Range): MORNING Mixing height below 1000 ft. Transport wind SSW to WSW at 4 - 8 mph. Surface wind light and variable and controlled by local terrain. AFTERNOON Mixing height 1000 - 2000 ft. Transport wind increases to SW to W at 9 - 15 mph. Surface wind similar to morning. EVENING Mixing height 1000 - 1800 ft. Transport wind increases to SW to W at 12 - 24 mph. Surface wind increases to SW to W at 5 - 9 mph. Zone 605-611 (North Cascades): MORNING Mixing height 1000 - 1600 ft. Transport wind light and variable. Surface wind light and variable and controlled by local terrain. AFTERNOON Mixing height 1400 - 2400 ft. Transport wind increases to SSW to WSW at 8 - 12 mph. Surface wind increases to SSW to WSW at 6 - 12 mph. EVENING Mixing height 1200 - 2200 ft. Transport wind S to SW at 10 - 16 mph. Surface wind S to SW at 8 - 12 mph. Zone 615-620 (South Coast Range): MORNING Mixing height below 1000 ft. Transport wind light and variable. Surface wind light and variable and controlled by local terrain. AFTERNOON Mixing height 1000 - 1700 ft. Transport wind shifts to NW to N at 4 - 8 mph. Surface wind similar to morning. EVENING Mixing height lowers below 1000 ft. Transport wind similar to afternoon. Surface wind similar to afternoon. Zone 616-623 (South Cascades): MORNING Mixing height below 1000 ft. Transport wind light and variable. Surface wind light and variable and controlled by local terrain. AFTERNOON Mixing height rising to 1300 - 2300 ft. Transport wind increases to NW to N at 6 - 12 mph. Surface wind increases to WNW to NNW at 5 - 9 mph. EVENING Mixing height lowers below 1000 ft. Transport wind becomes light and variable. Surface wind becomes light and variable and controlled by local terrain. OUTLOOK: FRIDAY Mixing height below 1000 ft early rising to 1000 to 2000 ft by late morning rising to 1600 to 2600 ft during the afternoon. In the Coast Range transport wind light and variable during the morning becoming SW to W at 8 - 12 mph during the afternoon. In the Cascades transport wind light and variable during the morning becoming WSW to WNW at 8 - 12 mph during the afternoon. In the north surface wind SSW to SW at 8 - 12 mph. In the south surface wind light and variable during the morning becoming W to NW at 6 - 12 mph during the afternoon. SATURDAY Mixing height below 1000 ft during the morning rising to 1700 to 2700 ft during the afternoon. Transport wind NW to NNE at 6 - 10 mph. Surface wind WNW to NNW at 4 - 8 mph during the morning becoming light and variable during the afternoon. SUNDAY Mixing height below 1000 ft during the morning rising to 1000 to 2000 ft during the afternoon. Transport wind W to NW at 5 - 9 mph. Surface wind light and variable. 3. BURNING INSTRUCTIONS FOR ALL ZONES IN THE WESTERN OREGON AREA These instructions are valid for burning conducted on Thursday, February 3, 2011. ================================================================= Coast Range Zone 601, 612, and 616 east of R9W Units should be 500 tons or less, spaced 15 miles apart, and 15 miles from downwind SSRAs. North of Tillamook in Zone 601, use standard guidance matrix. (See section 5 below.) Zone 602, 603, and 620 No burning allowed. North of T3N in Zone 602, use standard guidance matrix. (See section 5 below.) Avoid burning in or near corridors. Units may be 500 tons or less, spaced 15 miles apart, south of the Siuslaw River in Zone 603. Some burning allowed south of the Rogue River in Zone 620. Call the forecaster. Zone 615 Units should be 1500 tons or less, spaced 15 miles apart, and 15 miles from downwind SSRAs. Zone 616 west of R8W Units should be 750 tons or less, spaced 15 miles apart, and 15 miles from downwind SSRAs. Zone 618 and 619 Use standard guidance matrix. (See section 5 below.) Cascades Zone 605, 606, 607, 608, 609, 610, 616, 617, and 623 Use standard guidance matrix. (See section 5 below.) Ensure adequate distance from downwind SSRAs for smoke to dissipate. From T18S through T22S in Zone 608 units should be 750 tons or less, spaced 15 miles apart. South of T30S in Zone 616 units should be 500 tons or less, spaced 15 miles apart. Zone 611 Units should be 750 tons or less, spaced 15 miles apart, and 15 miles from downwind SSRAs. Zone 620 and 622 No burning allowed. Siskiyous Use standard guidance matrix. (See section 5 below.) ============================================================== 4. SPECIAL NOTE: Call the smoke management duty forecaster at (503) 945-7401 to discuss burning. Please do not call individual's numbers to discuss daily burning. If the forecaster is not available, leave a message and he will return your call as soon as possible. Avoid calling between 2 to 2:30 p.m. The forecast is available on the Internet at: http://oregon.gov/ODF/FIRE/fire.shtml/#Smoke_Management Please ensure your units have been planned and accomplished by checking: http://oregon.gov/ODF/FIRE/SMP/dailysmoke.shtml 5. STANDARD GUIDANCE MATRIX: * Greater than 5000 ft mixing height: No burning within 5 miles of downwind SSRA. Maximum 100 tons per mile from downwind SSRA. Example: 500 ton maximum allowed if burned 5 miles from downwind SSRA. * 3000 - 5000 ft mixing height: No burning within 10 miles of downwind SSRA. Maximum 75 tons per mile from downwind SSRA. Example: 750 ton maximum allowed if burned 10 miles from downwind SSRA. * Less than 3000 ft mixing height: No burning within 15 miles of downwind SSRA. Maximum 50 tons per mile from downwind SSRA. Example: 750 ton maximum allowed if burned 15 miles from downwind SSRA. * All exceptions must be coordinated with the duty forecaster prior to ignition. -------------- next part -------------- An HTML attachment was scrubbed... URL: From smi_west at listsmart.osl.state.or.us Thu Feb 3 14:23:37 2011 From: smi_west at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Thu, 3 Feb 2011 14:23:37 -0800 Subject: SMI West (Smoke Management Instructions) Western Oregon Smoke Management Instructions Message-ID: SMOKE MANAGEMENT FORECAST AND INSTRUCTIONS SALEM FORESTRY WEATHER CENTER OREGON DEPARTMENT OF FORESTRY ISSUED: Thursday, February 3, 2011 2:30 PM Pete Parsons 1. DISCUSSION AND FORECAST FOR THE WESTERN OREGON AREA FORECAST ZONES 601-623 The National Weather Service has issued an Air Stagnation Advisory for the southwestern valleys and for south-central Oregon through 10 am Monday. FRIDAY A persistent upper-level ridge of high pressure, which has been over the region for several days, will get flattened slightly by a weather system riding over the top of it and into southern British Columbia. Forecast models show rain moving across western Washington with a chance of light rain spreading as far south as about Newport, along the coast, and across the northern Cascades. Elsewhere, expect just increased cloudiness. Low level flow should turn mostly onshore with southwesterly transport winds across the northern zones and very light north to northwesterly flow over the southern zones. Mixing heights should improve slightly, mainly over the northern zones, where smoke dispersal conditions may improve to marginal. OUTLOOK (SATURDAY-MONDAY) On Saturday the upper-level ridge is forecast to retreat just far enough offshore to allow a chance of rain to extend southward across most of Oregon, in an increasing northwesterly flow aloft. Rainfall amounts should be mostly less than one-tenth of an inch with little to no rain forecast for most southwestern zones. The snow level will drop to about 6000 feet north and to about 7000 feet south. Slightly cooler air aloft will nudge mixing heights up just a bit with marginal smoke dispersal conditions for most areas. Northern zones should have west to southwest transport winds with northwest transport winds across southern zones. Northwesterly flow aloft will continue on Sunday, with minimal change in low-level transport winds, as the upper-level ridge slowly builds back over the state. Skies should remain mostly cloudy with a continued chance of light rain and high elevation snow. Precipitation totals should be less than one-tenth of an inch, with the best chance of rain or snow over the northern Cascades. Mixing heights will likely lower slightly with a return to mostly poor smoke dispersal conditions. On Monday, the upper-level ridge is forecast to back away from the coastline, with another upper-level disturbance dropping southeastward across eastern Washington and northeastern Oregon. That will renew the threat of showers across mainly the northern and eastern zones with the snow level dropping to 4000 feet north and 5000 feet south. Colder air aloft will lift mixing heights with improving smoke dispersal conditions in the afternoon. Transport winds will be mostly southwest to west across the northern zones and northwest to north across the southern zones. 2. DISPERSION Zone 601-612 (North Coast Range and Cascades): MORNING Mixing height below 1000 ft early rising to 1000 - 2000 ft by late morning. Transport wind SSW to WSW at 8 - 12 mph. Surface wind S to SW at 5 - 9 mph. AFTERNOON Mixing height 1600 - 2600 ft. Transport wind SW to W at 8 - 12 mph. Surface wind similar to morning. EVENING Mixing height 1000 - 1700 ft. Transport wind SW to WNW at 4 - 8 mph. Surface wind becomes light and variable and controlled by local terrain. Zone 615-623 (South Coast Range and Cascades): MORNING Mixing height below 500 ft early rising to 1000 - 1600 ft by late morning. Transport wind light and variable and controlled by local terrain. Surface wind light and variable and controlled by local terrain. AFTERNOON Mixing height 1500 - 2500 ft. Transport wind shifts to NNW to NNE at 4 - 8 mph. Surface wind similar to morning. EVENING Mixing height lowers below 1000 ft. Transport wind becomes light and variable and controlled by local terrain. Surface wind similar to afternoon. OUTLOOK: SATURDAY Mixing height below 1000 ft early rising to 1200 to 2200 ft by late morning rising to 1800 to 2800 ft during the afternoon. Transport wind light and variable during the morning becoming SW to W at 6 - 12 mph during the afternoon. Surface wind light and variable during the morning becoming SW to W at 4 - 8 mph during the afternoon. SUNDAY Mixing height below 1000 ft early rising to 1000 to 1900 ft by late morning and through the afternoon. Transport wind WSW to WNW at 4 - 8 mph. Surface wind light and variable. MONDAY Mixing height below 1000 ft early rising to 1000 to 1700 ft by late morning rising to 2400 to 3400 ft during the afternoon. Transport wind WSW to WNW at 5 - 9 mph during the morning becoming WNW to NW at 8 - 12 mph during the afternoon. Surface wind light and variable during the morning becoming W to NW at 5 - 9 mph during the afternoon. 3. BURNING INSTRUCTIONS FOR ALL ZONES IN THE WESTERN OREGON AREA These instructions are valid for burning conducted on Friday, February 4, 2011. ================================================================= Coast Range Zone 601, 612, and 616 east of R9W Units should be 500 tons or less, spaced 15 miles apart, and 15 miles from downwind SSRAs. North of Tillamook in Zone 601, use standard guidance matrix. (See section 5 below.) Zone 602, 603, and 620 No burning allowed. North of T3N in Zone 602, use standard guidance matrix. (See section 5 below.) Avoid burning in or near corridors. Units may be 500 tons or less, spaced 15 miles apart, south of the Siuslaw River in Zone 603. Some burning allowed south of the Rogue River in Zone 620. Call the forecaster. Zone 615 Units should be 1500 tons or less, spaced 15 miles apart, and 15 miles from downwind SSRAs. Zone 616 west of R8W Units should be 750 tons or less, spaced 15 miles apart, and 15 miles from downwind SSRAs. Zone 618 and 619 Use standard guidance matrix. (See section 5 below.) Cascades Zone 605, 606, 607, 608, 609, 616, 617, and 623 Use standard guidance matrix. (See section 5 below.) Ensure adequate distance from downwind SSRAs for smoke to dissipate. From T15S through T20S in Zone 608 units should be 750 tons or less, spaced 15 miles apart. South of T30S in Zone 616 units should be 500 tons or less, spaced 15 miles apart. South of T30S in Zone 617 units should be 500 tons or less, spaced 15 miles apart. Zone 610 and 611 Units should be 750 tons or less, spaced 15 miles apart, and 15 miles from downwind SSRAs. Zone 620 and 622 No burning allowed. Siskiyous Use standard guidance matrix. (See section 5 below.) ============================================================== 4. SPECIAL NOTE: Call the smoke management duty forecaster at (503) 945-7401 to discuss burning. Please do not call individual's numbers to discuss daily burning. If the forecaster is not available, leave a message and he will return your call as soon as possible. Avoid calling between 2 to 2:30 p.m. The forecast is available on the Internet at: http://oregon.gov/ODF/FIRE/fire.shtml/#Smoke_Management Please ensure your units have been planned and accomplished by checking: http://oregon.gov/ODF/FIRE/SMP/dailysmoke.shtml 5. STANDARD GUIDANCE MATRIX: * Greater than 5000 ft mixing height: No burning within 5 miles of downwind SSRA. Maximum 100 tons per mile from downwind SSRA. Example: 500 ton maximum allowed if burned 5 miles from downwind SSRA. * 3000 - 5000 ft mixing height: No burning within 10 miles of downwind SSRA. Maximum 75 tons per mile from downwind SSRA. Example: 750 ton maximum allowed if burned 10 miles from downwind SSRA. * Less than 3000 ft mixing height: No burning within 15 miles of downwind SSRA. Maximum 50 tons per mile from downwind SSRA. Example: 750 ton maximum allowed if burned 15 miles from downwind SSRA. * All exceptions must be coordinated with the duty forecaster prior to ignition. -------------- next part -------------- An HTML attachment was scrubbed... URL: From smi_west at listsmart.osl.state.or.us Fri Feb 4 14:30:00 2011 From: smi_west at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Fri, 4 Feb 2011 14:30:00 -0800 Subject: SMI West (Smoke Management Instructions) Western Oregon Smoke Management Instructions Message-ID: SMOKE MANAGEMENT FORECAST AND INSTRUCTIONS SALEM FORESTRY WEATHER CENTER OREGON DEPARTMENT OF FORESTRY ISSUED: Friday, February 4, 2011 2:30 PM Pete Parsons 1. DISCUSSION AND FORECAST FOR THE WESTERN OREGON AREA FORECAST ZONES 601-623 SATURDAY The National Weather Service has issued an Air Stagnation Advisory, for central Douglas, eastern Curry, Josephine, and Jackson Counties, through 10 a.m. Monday. The Air Stagnation Advisory for Klamath and Lake Counties will expire at 10 a.m. Saturday. A persistent upper-level ridge of high pressure, which has been over the region for several days, will stay just far enough offshore to allow considerable cloudiness to continue to slide over it and drop southeastward across Oregon. Light rain will likely be confined to the northern zones and decrease during the day, in a northwesterly flow aloft, as the upper-level ridge of high pressure nudges closer to the coastline. In the north, rainfall amounts should be from one-tenth to one-quarter of an inch along the coast and Cascades ranges, with less than one-tenth of an inch at most lower elevations. Some very light rain could extend southward into the higher elevations of the central zones, with little or no rain across the southwestern zones. The snow level will drop to about 6000 feet north and 7000 feet south. Mixing heights will be similar to Friday, with continued marginal to poor smoke dispersal conditions. Northern zones should have west to southwest transport winds with light northwest to north transport winds across the southern zones. OUTLOOK (SUNDAY-TUESDAY) Some drying of the air mass is forecast for Sunday, with the upper-level ridge building slightly over the region. Northwesterly flow aloft will continue to spread some clouds across the region, but shower activity will be minimal. Little change is forecast in mixing heights and transport winds with continued marginal to poor smoke dispersal conditions. On Monday, the upper-level ridge is forecast to back away from the coastline, with a stronger upper-level disturbance forecast to drop southeastward across Washington and northern Oregon. This system will not have a lot of moisture to work with, but it will likely spread some showers across mainly the northern and eastern zones, with the snow level dropping to 3500 feet north and 5000 feet south. Cooling aloft will begin to lift mixing heights with improving afternoon smoke dispersal conditions. Transport winds will turn west to northwest across the northern zones and remain northwest to north across the southern zones. A dry and cooler northerly flow aloft is forecast by Tuesday afternoon. Mixing heights will be fair on Tuesday but will deteriorate considerably by Thursday, as the upper-level ridge builds back over the west coast. This period may provide burning opportunities for units requiring north or northeast transport winds. 2. DISPERSION Zone 601-612 (North Coast Range and Cascades): MORNING Mixing height below 1000 ft early rising to 1000 - 2000 ft by late morning. Transport wind S to SW at 4 - 8 mph. Surface wind light and variable and controlled by local terrain. AFTERNOON Mixing height 1300 - 2300 ft. Transport wind similar to morning. Surface wind increases to S to SW at 4 - 8 mph. EVENING Mixing height lowers below 1000 ft. Transport wind similar to afternoon. Surface wind similar to afternoon. Zone 615-623 (South Coast Range and Cascades): MORNING Mixing height below 1000 ft early rising to 1000 - 2000 ft by late morning. Transport wind light and variable and controlled by local terrain. Surface wind light and variable and controlled by local terrain. AFTERNOON Mixing height 1500 - 2500 ft. Transport wind similar to morning. Surface wind similar to morning. EVENING Mixing height lowers below 1000 ft. Transport wind similar to afternoon. Surface wind similar to afternoon. OUTLOOK: SUNDAY Mixing height below 1000 ft early rising to 1300 to 2300 ft by late morning and through the afternoon. Transport wind SSE to SSW at 4 - 8 mph during the morning becoming SW to W at 6 - 12 mph during the afternoon. Surface wind light and variable. MONDAY Mixing height below 1000 ft early rising to 1500 to 2500 ft by late morning rising to 3000 to 4000 ft during the afternoon. Transport wind WNW to NW at 8 - 14 mph during the morning becoming NW to N at 10 - 20 mph during the afternoon. Surface wind W to NW at 4 - 8 mph. TUESDAY Mixing height below 1000 ft early rising to 1200 to 2200 ft by late morning rising to 2600 to 3600 ft during the afternoon. Transport wind NE to E at 4 - 8 mph during the morning becoming NE to E at 10 - 16 mph during the afternoon. Surface wind light and variable during the morning becoming NNE to ENE at 6 - 10 mph during the afternoon. 3. BURNING INSTRUCTIONS FOR ALL ZONES IN THE WESTERN OREGON AREA These instructions are valid for burning conducted on Saturday and Sunday, February 5 and 6, 2011. ================================================================= For Saturday: Coast Range Zone 601, 612, 615, 616 west of and R8W Units should be 750 tons or less, spaced 15 miles apart, and 15 miles from downwind SSRAs. North of Tillamook in Zone 601, use standard guidance matrix. (See section 5 below.) Zone 602, 603, and 620 No burning allowed. North of T3N in Zone 602, use standard guidance matrix. (See section 5 below.) Units may be 500 tons or less, spaced 15 miles apart, south of the Siuslaw River in Zone 603. Zone 616 east of R9W Units should be 500 tons or less, spaced 15 miles apart, and 15 miles from downwind SSRAs. Zone 618 and 619 Use standard guidance matrix. (See section 5 below.) Cascades Zone 605, 606, 607, 608, 609, 610, 616, 617, and 623 Use standard guidance matrix. (See section 5 below.) Ensure adequate distance from downwind SSRAs for smoke to dissipate. South of T30S in Zone 616 units should be 500 tons or less, spaced 15 miles apart. South of T30S in Zone 617 units should be 500 tons or less, spaced 15 miles apart. Zone 611 Units should be 750 tons or less, spaced 15 miles apart, and 15 miles from downwind SSRAs. Zone 620 and 622 No burning allowed. Siskiyous Use standard guidance matrix. (See section 5 below.) For Sunday: Coast Range Zone 601, 612, 615, 616 west of and R8W Units should be 750 tons or less, spaced 15 miles apart, and 15 miles from downwind SSRAs. North of Tillamook in Zone 601, use standard guidance matrix. (See section 5 below.) Higher tonnage is possible south of T29S in Zone 616. Call the forecaster. Zone 602, 603, and 620 No burning allowed. North of T3N in Zone 602, use standard guidance matrix. (See section 5 below.) Units may be 500 tons or less, spaced 15 miles apart, south of the Siuslaw River in Zone 603. Zone 616 east of R9W Units should be 500 tons or less, spaced 15 miles apart, and 15 miles from downwind SSRAs. Higher tonnage is possible south of T29S. Call the forecaster. Zone 618 and 619 Use standard guidance matrix. (See section 5 below.) Cascades Zone 605, 606, 607, 608, 609, 610, 617, and 623 Use standard guidance matrix. (See section 5 below.) Ensure adequate distance from downwind SSRAs for smoke to dissipate. Zone 611 Units should be 750 tons or less, spaced 15 miles apart, and 15 miles from downwind SSRAs. Zone 616 Units should be 500 tons or less, spaced 15 miles apart, and 15 miles from downwind SSRAs. Avoid ignitions north of T24S. South of T29S higher tonnage is possible. Call the forecaster. Zone 620 and 622 No burning allowed. Siskiyous Units should be 750 tons or less, spaced 15 miles apart, and 15 miles from downwind SSRAs. ============================================================== 4. SPECIAL NOTE: Call the smoke management duty forecaster at (503) 945-7401 to discuss burning. Please do not call individual's numbers to discuss daily burning. If the forecaster is not available, leave a message and he will return your call as soon as possible. Avoid calling between 2 to 2:30 p.m. The forecast is available on the Internet at: http://oregon.gov/ODF/FIRE/fire.shtml/#Smoke_Management Please ensure your units have been planned and accomplished by checking: http://oregon.gov/ODF/FIRE/SMP/dailysmoke.shtml 5. STANDARD GUIDANCE MATRIX: * Greater than 5000 ft mixing height: No burning within 5 miles of downwind SSRA. Maximum 100 tons per mile from downwind SSRA. Example: 500 ton maximum allowed if burned 5 miles from downwind SSRA. * 3000 - 5000 ft mixing height: No burning within 10 miles of downwind SSRA. Maximum 75 tons per mile from downwind SSRA. Example: 750 ton maximum allowed if burned 10 miles from downwind SSRA. * Less than 3000 ft mixing height: No burning within 15 miles of downwind SSRA. Maximum 50 tons per mile from downwind SSRA. Example: 750 ton maximum allowed if burned 15 miles from downwind SSRA. * All exceptions must be coordinated with the duty forecaster prior to ignition. -------------- next part -------------- An HTML attachment was scrubbed... URL: From smi_west at listsmart.osl.state.or.us Mon Feb 7 07:29:13 2011 From: smi_west at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Mon, 7 Feb 2011 07:29:13 -0800 Subject: SMI West (Smoke Management Instructions) (no subject) Message-ID: SMOKE MANAGEMENT FORECAST AND INSTRUCTIONS SALEM FORESTRY WEATHER CENTER OREGON DEPARTMENT OF FORESTRY ISSUED: Monday, February 7, 2011 7:30 AM Jim Little 1. DISCUSSION AND FORECAST FOR THE WESTERN OREGON AREA FORECAST ZONES 601-623 A weakening Pacific cold front moved through the Pacific Northwest overnight Sunday night bringing cooler temperatures and moisture to much of western Oregon and the Oregon Cascades. Mountain locations in northern Oregon generally received between a quarter and a half an inch of precipitation although Rye Mountain recorded six-tenths and Log Creek reported 1.20 inches. Salem's freezing level was about 4100 feet this morning while the Medford morning sounding showed a freezing level of near 7660 feet. ODOT traffic cams in the Cascades show snow around Mt Hood but just wet roadway surfaces elsewhere. Southern location rainfall amounts were much lighter with generally just a few hundredths of an inch of precip being reported. Showers will continue today and snow levels will lower to around 2500 feet in the north and to about 3000 feet in the south this afternoon. Mixing heights will be quite high and transport winds should be mostly west-northwesterly for mostly good smoke dispersal conditions. Showers will taper off Tuesday and transport winds will be more northerly with a dry spell likely mid week with a potential for offshore flow. Longer range charts indicate a precipitation return over the weekend and a wetter, more seasonal, weather pattern next week. 2. DISPERSION Zone 601, 602, 603 and 612 (North Coast Range): MORNING Mixing height 2800 - 3800 ft. Transport wind WNW to NW at 18 - 30 mph. Surface wind WNW to NW at 10 - 22 mph. AFTERNOON Mixing height 3400 - 4400 ft. Transport wind similar to morning. Surface wind similar to morning. EVENING Mixing height 3000 - 4000 ft. Transport wind WNW to NNW at 14 - 28 mph. Surface wind WNW to NNW at 9 - 15 mph. Zone 605-611 (North Cascades): MORNING Mixing height 2900 - 3900 ft. Transport wind WSW to WNW at 10 - 16 mph. Surface wind WSW to WNW at 10 - 18 mph. AFTERNOON Mixing height rising to 4000 - 5000 ft. Transport wind similar to morning. Surface wind similar to morning. EVENING Mixing height 2200 - 3200 ft. Transport wind similar to afternoon. Surface wind similar to afternoon. Zone 615-620 (South Coast Range): MORNING Mixing height 2600 - 3600 ft. Transport wind light and variable. Surface wind light and variable and controlled by local terrain. AFTERNOON Mixing height 3300 - 4300 ft. Transport wind increases to NW to N at 9 - 15 mph. Surface wind increases to NW to N at 8 - 14 mph. EVENING Mixing height 3300 - 4300 ft. Transport wind NW to N at 6 - 10 mph. Surface wind WNW to NNW at 5 - 9 mph. Zone 616-623 (South Cascades): MORNING Mixing height 2200 - 3200 ft. Transport wind WNW to NNW at 8 - 12 mph. Surface wind WNW to NNW at 8 - 12 mph. AFTERNOON Mixing height rising above 5000 ft. Transport wind WNW to NW at 10 - 18 mph. Surface wind WNW to NW at 10 - 16 mph. EVENING Mixing height 2800 - 3800 ft. Transport wind decreases to WNW to NNW at 6 - 10 mph. Surface wind WNW to NNW at 6 - 10 mph. 3. BURNING INSTRUCTIONS FOR ALL ZONES IN THE WESTERN OREGON AREA These instructions are valid for burning conducted on Monday, February 7, 2011. ================================================================= Coast Range Zone 601, 612, and 616 east of R9W Units should be 750 tons or less, spaced 10 miles apart, and 12 miles from downwind SSRAs. Restrict units in or near corridors to 500 tons or less. Higher tonnage is possible south of Waldport in Zone 612. Call the forecaster. Restrict units to 500 tons or less south of T30S in Zone 616. Zone 602 and 603 Units should be 300 tons or less, spaced 10 miles apart, and 12 miles from downwind SSRAs. Avoid burning in or near corridors. Higher tonnage is possible south of the Siuslaw River in Zone 603. Call the forecaster. Zone 615 Units should be 2000 tons or less, spaced 10 miles apart, and 12 miles from downwind SSRAs. Zone 616 west of R8W Units should be 1200 tons or less, spaced 10 miles apart, and 12 miles from downwind SSRAs. Zone 618 and 619 Use standard guidance matrix. (See section 5 below.) Zone 620 No burning allowed. Some burning allowed south of the Rogue River. Call the forecaster. Cascades Zone 605, 606, 607, 608, 609, 616, 617, and 623 Use standard guidance matrix. (See section 5 below.) Ensure adequate distance from downwind SSRAs for smoke to dissipate. From T15S through T20S in Zone 608 units should be 1000 tons or less, spaced 8 miles apart. Zone 610 and 611 Units should be 1000 tons or less, spaced 8 miles apart, and 10 miles from downwind SSRAs. Zone 620 Units should be 500 tons or less, spaced 5 miles apart, and 10 miles from downwind SSRAs. Zone 622 Units should be 1000 tons or less, spaced 5 miles apart, and 10 miles from downwind SSRAs. East of R2W, use standard guidance matrix. (See section 5 below.) Siskiyous Use standard guidance matrix. (See section 5 below.) ============================================================== 4. SPECIAL NOTE: Call the smoke management duty forecaster at (503) 945-7401 to discuss burning. Please do not call individual's numbers to discuss daily burning. If the forecaster is not available, leave a message and he will return your call as soon as possible. Avoid calling between 2 to 2:30 p.m. The forecast is available on the Internet at: http://oregon.gov/ODF/FIRE/fire.shtml/#Smoke_Management Please ensure your units have been planned and accomplished by checking: http://oregon.gov/ODF/FIRE/SMP/dailysmoke.shtml 5. STANDARD GUIDANCE MATRIX: * Greater than 5000 ft mixing height: No burning within 5 miles of downwind SSRA. Maximum 100 tons per mile from downwind SSRA. Example: 500 ton maximum allowed if burned 5 miles from downwind SSRA. * 3000 - 5000 ft mixing height: No burning within 10 miles of downwind SSRA. Maximum 75 tons per mile from downwind SSRA. Example: 750 ton maximum allowed if burned 10 miles from downwind SSRA. * Less than 3000 ft mixing height: No burning within 15 miles of downwind SSRA. Maximum 50 tons per mile from downwind SSRA. Example: 750 ton maximum allowed if burned 15 miles from downwind SSRA. * All exceptions must be coordinated with the duty forecaster prior to ignition. -------------- next part -------------- An HTML attachment was scrubbed... URL: From smi_west at listsmart.osl.state.or.us Mon Feb 7 13:24:09 2011 From: smi_west at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Mon, 7 Feb 2011 13:24:09 -0800 Subject: SMI West (Smoke Management Instructions) (no subject) Message-ID: SMOKE MANAGEMENT FORECAST AND INSTRUCTIONS SALEM FORESTRY WEATHER CENTER OREGON DEPARTMENT OF FORESTRY ISSUED: Monday, February 7, 2011 2:30 PM Jim Little 1. DISCUSSION AND FORECAST FOR THE WESTERN OREGON AREA FORECAST ZONES 601-623 TUESDAY An upper level ridge builds over the eastern Pacific on Tuesday and upper level flow veers to more northerly. Scattered showers are still likely with the greatest likelihood over the Cascades. Freezing levels will range from as low as 2000 feet in the north to 2500 feet in the south so showers may be as snow to relatively low elevations. Mixing heights fall some from Monday, but smoke dispersal conditions should remain fair to good. Transport winds will be mostly north-northeasterly. OUTLOOK (WEDNESDAY - FRIDAY) On Wednesday upper ridge in the eastern Pacific will control weather in Pacific Northwest, shunting storms into south-central Alaska and keeping this area dry. Transport winds will remain generally north-northeasterly most areas. Mixing heights will fall under the ridge and smoke dispersal conditions become marginal. By Thursday the ridge axis shifts eastward and subsidence increases suppressing maximum mixing heights. Smoke dispersal conditions become poor. There will be little change in transport wind directions but transport wind speeds will decrease considerably. On Friday the ridge axis pushes to eastern Oregon and upper level flow becomes west-southwesterly while low level transport winds switch to south-southwest. There will be slight improvement in mixing heights for coastal zones but overall smoke dispersal conditions will remain poor. Expect dry weather throughout the outlook period but rain will return to the region on Saturday. 2. DISPERSION Zone 601, 602, 603 and 612 (North Coast Range): MORNING Mixing height 1900 - 2900 ft. Transport wind NW to N at 6 - 12 mph. Surface wind WNW to NNW at 5 - 9 mph. AFTERNOON Mixing height rising to 3100 - 4100 ft. Transport wind shifts to N to NE at 4 - 8 mph. Surface wind becomes light and variable and controlled by local terrain. EVENING Mixing height lowers below 1000 ft. Transport wind becomes light and variable. Surface wind similar to afternoon. Zone 605-611 (North Cascades): MORNING Mixing height 1100 - 2100 ft. Transport wind light and variable. Surface wind light and variable and controlled by local terrain. AFTERNOON Mixing height rising to 2700 - 3700 ft. Transport wind increases to NNW to NE at 4 - 8 mph. Surface wind increases to NNW to NE at 4 - 8 mph. EVENING Mixing height lowers below 1000 ft. Transport wind shifts to NE to E at 4 - 8 mph. Surface wind becomes light and variable and controlled by local terrain. Zone 615-620 (South Coast Range): MORNING Mixing height 3000 - 4000 ft. Transport wind NW to N at 6 - 12 mph. Surface wind NW to N at 6 - 10 mph. AFTERNOON Mixing height 3700 - 4700 ft. Transport wind NNW to NNE at 6 - 10 mph. Surface wind NW to NNE at 6 - 10 mph. EVENING Mixing height 1100 - 2100 ft. Transport wind NNW to NE at 6 - 10 mph. Surface wind NNW to NE at 4 - 8 mph. Zone 616-623 (South Cascades): MORNING Mixing height 2200 - 3200 ft. Transport wind WNW to NNW at 5 - 9 mph. Surface wind WNW to NNW at 6 - 10 mph. AFTERNOON Mixing height 2600 - 3600 ft. Transport wind NW to N at 8 - 12 mph. Surface wind NW to N at 6 - 12 mph. EVENING Mixing height lowers below 1000 ft. Transport wind N to NE at 4 - 8 mph. Surface wind NNW to NE at 4 - 8 mph. OUTLOOK: WEDNESDAY In the north mixing height below 1000 ft early rising to 1000 to 1900 ft by late morning rising to 2000 to 3000 ft during the afternoon. In the south mixing height below 1000 ft early rising to 2200 to 3200 ft by late morning and through the afternoon. Transport wind NE to E at 4 - 8 mph during the morning becoming N to NE at 6 - 10 mph during the afternoon. Surface wind light and variable during the morning becoming N to NE at 5 - 9 mph during the afternoon. THURSDAY Mixing height below 1000 ft during the morning rising to 1000 to 2000 ft during the afternoon. Transport wind light and variable. Surface wind light and variable. FRIDAY Mixing height below 1000 ft during the morning rising to 1200 to 2200 ft during the afternoon. Transport wind S to SW at 6 - 10 mph during the morning becoming SSW to SW at 10 - 16 mph during the afternoon. Surface wind light and variable. 3. BURNING INSTRUCTIONS FOR ALL ZONES IN THE WESTERN OREGON AREA These instructions are valid for burning conducted on Tuesday, February 8, 2011. ================================================================= Coast Range Zone 601, 602, 603, 612, 618, and 619 Use standard guidance matrix. (See section 5 below.) Avoid burning directly upwind of coastal SSRAs. Zone 615 Units should be 2000 tons or less, spaced 8 miles apart, and 10 miles from downwind SSRAs. Zone 616 west of R8W Units should be 1200 tons or less, spaced 8 miles apart, and 10 miles from downwind SSRAs. Zone 616 east of R9W Units should be 750 tons or less, spaced 8 miles apart, and 10 miles from downwind SSRAs. Restrict units to 500 tons or less south of T30S. Zone 620 Units should be 500 tons or less, spaced 8 miles apart, and 10 miles from downwind SSRAs. Higher tonnage is possible south of the Rogue River. Call the forecaster. Cascades Zone 605 and 606 Units should be 750 tons or less, spaced 10 miles apart, and 12 miles from downwind SSRAs. Verify transport winds away from SSRA if burning within 10 miles of the SSRA. Higher tonnage is possible south of T20S in Zone 606. Call the forecaster. Zone 607 and 608 Units should be 1500 tons or less, spaced 10 miles apart, and 12 miles from downwind SSRAs. Zone 609, 610, 611, 616, 617, and 623 Use standard guidance matrix. (See section 5 below.) Ensure adequate distance from downwind SSRAs for smoke to dissipate. South of T30S in Zone 616 units should be 500 tons or less, spaced 10 miles apart. South of T30S in Zone 617 units should be 500 tons or less, spaced 10 miles apart. Zone 620 and 622 No burning allowed. Siskiyous Use standard guidance matrix. (See section 5 below.) ============================================================== 4. SPECIAL NOTE: Call the smoke management duty forecaster at (503) 945-7401 to discuss burning. Please do not call individual's numbers to discuss daily burning. If the forecaster is not available, leave a message and he will return your call as soon as possible. Avoid calling between 2 to 2:30 p.m. The forecast is available on the Internet at: http://oregon.gov/ODF/FIRE/fire.shtml/#Smoke_Management Please ensure your units have been planned and accomplished by checking: http://oregon.gov/ODF/FIRE/SMP/dailysmoke.shtml 5. STANDARD GUIDANCE MATRIX: * Greater than 5000 ft mixing height: No burning within 5 miles of downwind SSRA. Maximum 100 tons per mile from downwind SSRA. Example: 500 ton maximum allowed if burned 5 miles from downwind SSRA. * 3000 - 5000 ft mixing height: No burning within 10 miles of downwind SSRA. Maximum 75 tons per mile from downwind SSRA. Example: 750 ton maximum allowed if burned 10 miles from downwind SSRA. * Less than 3000 ft mixing height: No burning within 15 miles of downwind SSRA. Maximum 50 tons per mile from downwind SSRA. Example: 750 ton maximum allowed if burned 15 miles from downwind SSRA. * All exceptions must be coordinated with the duty forecaster prior to ignition. -------------- next part -------------- An HTML attachment was scrubbed... URL: From smi_west at listsmart.osl.state.or.us Tue Feb 8 13:20:57 2011 From: smi_west at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Tue, 8 Feb 2011 13:20:57 -0800 Subject: SMI West (Smoke Management Instructions) (no subject) Message-ID: SMOKE MANAGEMENT FORECAST AND INSTRUCTIONS SALEM FORESTRY WEATHER CENTER OREGON DEPARTMENT OF FORESTRY ISSUED: Tuesday, February 8, 2011 2:30 PM Jim Little 1. DISCUSSION AND FORECAST FOR THE WESTERN OREGON AREA FORECAST ZONES 601-623 WEDNESDAY A strong upper level ridge with its axis about 400 miles offshore will shunt any Pacific storms well to the north and keep the Pacific Northwest dry through the end of the week. At the surface a weak thermal trough extends through central California into southwest Oregon. This will give generally northerly transport winds to the area. Subsidence with the upper ridge will suppress maximum mixing heights and limit smoke plume development. Smoke dispersal conditions will be marginal. OUTLOOK (THURSDAY - SATURDAY) The upper ridge axis moves to within about 100 miles of the coast, further suppressing maximum mixing heights for Thursday. Smoke dispersal conditions become poor and transport winds remain north or north-northeasterly. On Friday the upper ridge axis moves east of the Cascades and flow aloft becomes southwesterly. Lower level transport winds become south-southwest and increase. Maximum mixing heights rise and smoke dispersal conditions improve to marginal. On Saturday a Pacific cold front brings rain back to the Pacific Northwest. Rain will spread from northwestern Oregon southward to about a line from Diamond Lake to Coos Bay. Smoke dispersal conditions will further improve to marginal to fair. 2. DISPERSION Zone 601, 602, 603 and 612 (North Coast Range): MORNING Mixing height 1000 - 2000 ft. Transport wind light and variable. Surface wind light and variable and controlled by local terrain. AFTERNOON Mixing height rising to 2300 - 3300 ft. Transport wind increases to NNW to NE at 4 - 8 mph. Surface wind similar to morning. EVENING Mixing height lowers below 1000 ft. Transport wind NNE to ENE at 4 - 8 mph. Surface wind similar to afternoon. Zone 605-611 (North Cascades): MORNING Mixing height 1100 - 2100 ft. Transport wind light and variable. Surface wind light and variable and controlled by local terrain. AFTERNOON Mixing height rising to 2200 - 3200 ft. Transport wind increases to NNW to NE at 5 - 9 mph. Surface wind increases to NNW to NE at 5 - 9 mph. EVENING Mixing height lowers below 1000 ft. Transport wind becomes light and variable. Surface wind becomes light and variable and controlled by local terrain. Zone 615-620 (South Coast Range): MORNING Mixing height 1700 - 2700 ft. Transport wind NE to E at 6 - 10 mph. Surface wind NE to E at 5 - 9 mph. AFTERNOON Mixing height 2300 - 3300 ft. Transport wind increases to NNE to NE at 8 - 14 mph. Surface wind N to NE at 6 - 12 mph. EVENING Mixing height 1400 - 2400 ft. Transport wind NE to ENE at 9 - 15 mph. Surface wind NNE to ENE at 4 - 8 mph. Zone 616-623 (South Cascades): MORNING Mixing height 1500 - 2500 ft. Transport wind light and variable. Surface wind light and variable and controlled by local terrain. AFTERNOON Mixing height 2300 - 3300 ft. Transport wind similar to morning. Surface wind similar to morning. EVENING Mixing height lowers below 1000 ft. Transport wind similar to afternoon. Surface wind similar to afternoon. OUTLOOK: THURSDAY Mixing height below 1000 ft early rising to 1000 to 1700 ft by late morning rising to 1600 to 2600 ft during the afternoon. Transport wind ENE to ESE at 4 - 8 mph during the morning becoming light and variable during the afternoon. Surface wind light and variable. FRIDAY Mixing height below 1000 ft during the morning rising to 1700 to 2700 ft during the afternoon. Transport wind SSE to SSW at 4 - 8 mph. Surface wind light and variable. SATURDAY Mixing height 1400 to 2400 ft during the morning rising to 2400 to 3400 ft during the afternoon. Transport wind SSE to SSW at 4 - 8 mph. Surface wind light and variable. 3. BURNING INSTRUCTIONS FOR ALL ZONES IN THE WESTERN OREGON AREA These instructions are valid for burning conducted on Wednesday, February 9, 2011. ================================================================= Coast Range Zone 601, 612, 615, 616, 618, 619, and 620 Use standard guidance matrix. (See section 5 below.) Avoid burning directly upwind of coastal SSRAs. Zone 602 and 603 Units should be 1000 tons or less, spaced 15 miles apart, and 15 miles from downwind SSRAs. Avoid ignitions north of Forest Grove/Hillsboro or Sheridan/Willamina in Zone 602. Higher tonnage is possible south of T17S in Zone 603. Call the forecaster. Cascades Zone 605, 606, and 616 Units should be 500 tons or less, spaced 15 miles apart, and 15 miles from downwind SSRAs. Verify transport winds away from SSRA if burning within 10 miles of the SSRA in Zone 605 and 606. Higher tonnage is possible south of T20S in Zone 606. Call the forecaster. Zone 607 and 608 Units should be 1000 tons or less, spaced 15 miles apart, and 15 miles from downwind SSRAs. Zone 609, 610, 611, 617, and 623 Use standard guidance matrix. (See section 5 below.) Ensure adequate distance from downwind SSRAs for smoke to dissipate. South of T30S in Zone 617 units should be 500 tons or less, spaced 15 miles apart. Zone 620 and 622 No burning allowed. Siskiyous Use standard guidance matrix. (See section 5 below.) ============================================================== 4. SPECIAL NOTE: Call the smoke management duty forecaster at (503) 945-7401 to discuss burning. Please do not call individual's numbers to discuss daily burning. If the forecaster is not available, leave a message and he will return your call as soon as possible. Avoid calling between 2 to 2:30 p.m. The forecast is available on the Internet at: http://oregon.gov/ODF/FIRE/fire.shtml/#Smoke_Management Please ensure your units have been planned and accomplished by checking: http://oregon.gov/ODF/FIRE/SMP/dailysmoke.shtml 5. STANDARD GUIDANCE MATRIX: * Greater than 5000 ft mixing height: No burning within 5 miles of downwind SSRA. Maximum 100 tons per mile from downwind SSRA. Example: 500 ton maximum allowed if burned 5 miles from downwind SSRA. * 3000 - 5000 ft mixing height: No burning within 10 miles of downwind SSRA. Maximum 75 tons per mile from downwind SSRA. Example: 750 ton maximum allowed if burned 10 miles from downwind SSRA. * Less than 3000 ft mixing height: No burning within 15 miles of downwind SSRA. Maximum 50 tons per mile from downwind SSRA. Example: 750 ton maximum allowed if burned 15 miles from downwind SSRA. * All exceptions must be coordinated with the duty forecaster prior to ignition. -------------- next part -------------- An HTML attachment was scrubbed... URL: From smi_west at listsmart.osl.state.or.us Wed Feb 9 14:56:33 2011 From: smi_west at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Wed, 9 Feb 2011 14:56:33 -0800 Subject: SMI West (Smoke Management Instructions) Western Oregon Smoke Management Instructions Message-ID: SMOKE MANAGEMENT FORECAST AND INSTRUCTIONS SALEM FORESTRY WEATHER CENTER OREGON DEPARTMENT OF FORESTRY ISSUED: Wednesday, February 9, 2011 2:30 PM Pete Parsons 1. DISCUSSION AND FORECAST FOR THE WESTERN OREGON AREA FORECAST ZONES 601-623 THURSDAY Dry weather will continue with areas of morning valley fog giving way to afternoon sunshine. The axis of a broad upper-level ridge is forecast to move close to the coastline. Subsidence will further suppress maximum mixing heights with generally light north to northeasterly transport winds and poor smoke dispersal conditions. OUTLOOK (FRIDAY-SUNDAY) On Friday the upper ridge axis is forecast to move east of the Cascades with the flow aloft becoming more westerly. After areas of morning valley fog, skies should, become mostly sunny. Transport winds are forecast to turn south-southwesterly and increase during the afternoon. Maximum mixing heights will rise with smoke dispersal conditions improving to marginal. On Saturday a Pacific cold front is forecast to spread rain and mountain snow across western Washington, and the northwestern corner of Oregon, with increasing clouds elsewhere. Smoke dispersal conditions will improve to fair south and fair to good north, with cooling aloft leading to higher afternoon mixing heights. Transport winds continue to increase from the southwest. By Sunday, the flattened upper-level ridge axis is forecast to be near the Oregon/Idaho border with westerly flow aloft over Oregon. The first in what appears will be a series of Pacific storms is forecast to weaken over northern Oregon. Some rain is likely north of a Newport to Detroit line, with only a chance of light rain extending into the southern zones. The snow level is forecast to range from near 4000 feet north to around 6000 feet south. Smoke dispersal conditions should be fair with weakening south to southwesterly transport winds. 2. DISPERSION Zone 601-612 (North Coast Range and Cascades): MORNING Mixing height below 500 ft early rising to 1000 - 1700 ft by late morning. Transport wind light and variable but favors N to E and controlled by local terrain. Surface wind light and variable but favors N to E and controlled by local terrain. AFTERNOON Mixing height 1000 - 2000 ft. Transport wind similar to morning. Surface wind similar to morning. EVENING Mixing height lowers below 1000 ft. Transport wind similar to afternoon. Surface wind similar to afternoon. Zone 615-620 (South Coast Range): MORNING Mixing height below 500 ft early rising to 1100 - 2100 ft by late morning. Transport wind ENE to ESE at 6 - 10 mph. Surface wind ENE to ESE at 4 - 8 mph. AFTERNOON Mixing height 1500 - 2500 ft. Transport wind NNE to E at 5 - 9 mph. Surface wind shifts to NNE to ENE at 4 - 8 mph. EVENING Mixing height lowers below 1000 ft. Transport wind ENE to ESE at 4 - 8 mph. Surface wind ENE to ESE at 4 - 8 mph. Zone 616-623 (South Cascades): MORNING Mixing height below 500 ft early rising to 1000 - 1900 ft by late morning. Transport wind light and variable but favors N to E and controlled by local terrain. Surface wind light and variable but favors N to E and controlled by local terrain. AFTERNOON Mixing height 1600 - 2600 ft. Transport wind similar to morning. Surface wind similar to morning. EVENING Mixing height lowers below 1000 ft. Transport wind similar to afternoon. Surface wind similar to afternoon. OUTLOOK: FRIDAY Mixing height below 1000 ft early rising to 1200 to 2200 ft by late morning rising to 1900 to 2900 ft during the afternoon. Transport wind SE to S at 5 - 9 mph during the morning becoming SSW to SW at 10 - 18 mph during the afternoon. Surface wind light and variable during the morning becoming SSE to SW at 4 - 8 mph during the afternoon. SATURDAY Mixing height 1800 to 2800 ft during the morning rising to 3100 to 4100 ft during the afternoon. Transport wind SSW to SW at 13 - 25 mph. Surface wind SSE to SW at 4 - 8 mph. SUNDAY Mixing height 1800 to 2800 ft during the morning rising to 2800 to 3800 ft during the afternoon. Transport wind S to SSW at 9 - 15 mph. Surface wind SE to SSW at 4 - 8 mph during the morning becoming light and variable during the afternoon. 3. BURNING INSTRUCTIONS FOR ALL ZONES IN THE WESTERN OREGON AREA These instructions are valid for burning conducted on Thursday, February 10, 2011. ================================================================= Coast Range Zone 601 and 612 Units should be 500 tons or less, spaced 15 miles apart, and 15 miles from downwind SSRAs. Zone 602 and 603 No burning allowed. Zone 615, 616, 618, 619, and 620 Use standard guidance matrix. (See section 5 below.) Avoid burning directly upwind of the North Bend/Coos Bay SSRA. Cascades Zone 605, 606, 620, and 622 No burning allowed. Zone 607, 608, 609, 617, and 623 Use standard guidance matrix. (See section 5 below.) Ensure adequate distance from downwind SSRAs for smoke to dissipate. South of T30S in Zone 617 units should be 500 tons or less, spaced 15 miles apart. Zone 610 and 611 Units should be 1000 tons or less, spaced 15 miles apart, and 15 miles from downwind SSRAs. Zone 616 Units should be 500 tons or less, spaced 15 miles apart, and 15 miles from downwind SSRAs. Siskiyous Use standard guidance matrix. (See section 5 below.) ============================================================== 4. SPECIAL NOTE: Call the smoke management duty forecaster at (503) 945-7401 to discuss burning. Please do not call individual's numbers to discuss daily burning. If the forecaster is not available, leave a message and he will return your call as soon as possible. Avoid calling between 2 to 2:30 p.m. The forecast is available on the Internet at: http://oregon.gov/ODF/FIRE/fire.shtml/#Smoke_Management Please ensure your units have been planned and accomplished by checking: http://oregon.gov/ODF/FIRE/SMP/dailysmoke.shtml 5. STANDARD GUIDANCE MATRIX: * Greater than 5000 ft mixing height: No burning within 5 miles of downwind SSRA. Maximum 100 tons per mile from downwind SSRA. Example: 500 ton maximum allowed if burned 5 miles from downwind SSRA. * 3000 - 5000 ft mixing height: No burning within 10 miles of downwind SSRA. Maximum 75 tons per mile from downwind SSRA. Example: 750 ton maximum allowed if burned 10 miles from downwind SSRA. * Less than 3000 ft mixing height: No burning within 15 miles of downwind SSRA. Maximum 50 tons per mile from downwind SSRA. Example: 750 ton maximum allowed if burned 15 miles from downwind SSRA. * All exceptions must be coordinated with the duty forecaster prior to ignition. -------------- next part -------------- An HTML attachment was scrubbed... URL: From smi_west at listsmart.osl.state.or.us Thu Feb 10 14:39:23 2011 From: smi_west at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Thu, 10 Feb 2011 14:39:23 -0800 Subject: SMI West (Smoke Management Instructions) Western Oregon Smoke Management Instructions Message-ID: SMOKE MANAGEMENT FORECAST AND INSTRUCTIONS SALEM FORESTRY WEATHER CENTER OREGON DEPARTMENT OF FORESTRY ISSUED: Thursday, February 10, 2011 2:30 PM Pete Parsons 1. DISCUSSION AND FORECAST FOR THE WESTERN OREGON AREA FORECAST ZONES 601-623 FRIDAY The axis of a broad upper-level ridge is forecast to move east of the Cascades with the flow aloft becoming more westerly. After areas of morning valley fog, skies should become mostly sunny. Look for increasing clouds across northwestern zones in the afternoon. Transport winds are forecast to turn south-southwesterly and increase during the afternoon. Maximum mixing heights will be higher than on Thursday, with marginal to fair afternoon smoke dispersal conditions. OUTLOOK (SATURDAY-MONDAY) The upper-level ridge will flatten on Saturday, as a Pacific cold front spreads rain and mountain snow across western Washington and into northwestern Oregon during the afternoon. Clouds will increase across the central and southern zones. Smoke dispersal conditions will become fair to good, as southwesterly transport winds increase and low-level inversions begin to break, especially north. The cold front is forecast to stall over northern Oregon Sunday morning. Rain is likely north of a line from North Bend through Oakridge, with a chance of rain south. The snow level is forecast to range from near 4000 feet north to above 6000 feet south. The flow aloft is forecast to turn southwesterly Sunday afternoon, with the frontal system slowly migrating back to the north. Most of the rain and snow should push into Washington by evening. Smoke dispersal conditions should be fair with transport winds weakening and turning southerly in the afternoon. A strong upper-level trough will approach the coastline Monday with increasing southwesterly flow aloft. Computer models are showing a fairly impressive surface low-pressure system moving into Vancouver Island, British Columbia late in the day. After a dry morning, the associated cold front should spread brisk southeast to south winds, and eventually rain, across western Oregon during the afternoon and evening. Smoke dispersal conditions should be good, with brisk south to southwesterly transport winds. Snow levels should remain above 5000 feet. In the wake of the strong cold front, snow levels will rapidly drop below 3000 feet Tuesday with heavy mountain snow and ample valley rain likely. 2. DISPERSION Zone 601-612 (North Coast Range and Cascades): MORNING Mixing height below 800 ft early rising to 1400 - 2400 ft by late morning. Transport wind SSE to SSW at 8 - 12 mph. Surface wind SE to SSW at 4 - 8 mph. AFTERNOON Mixing height 2200 - 3200 ft. Transport wind increases to SSW to SW at 15 - 25 mph. Surface wind SSE to SW at 5 - 9 mph. EVENING Mixing height 1300 - 2300 ft. Transport wind similar to afternoon. Surface wind similar to afternoon. Zone 615-623 (South Coast Range and Cascades): MORNING Mixing height below 800 ft early rising to 1300 - 2300 ft by late morning. Transport wind SE to SSW at 6 - 10 mph. Surface wind SE to S at 4 - 8 mph. AFTERNOON Mixing height 2200 - 3200 ft. Transport wind S to SW at 10 - 16 mph. Surface wind S to SW at 4 - 8 mph. EVENING Mixing height 1200 - 2200 ft. Transport wind similar to afternoon. Surface wind similar to afternoon. OUTLOOK: SATURDAY Mixing height 1600 to 2600 ft during the morning rising to 3500 to 4500 ft during the afternoon. Transport wind SSW to SW at 12 - 24 mph during the morning becoming SSW to SW at 18 - 30 mph during the afternoon. Surface wind SSE to SSW at 6 - 10 mph. SUNDAY Mixing height 2000 to 3000 ft during the morning rising to 2600 to 3600 ft during the afternoon. Transport wind S to SSW at 10 - 18 mph. Surface wind SE to SSW at 4 - 8 mph. MONDAY Mixing height below 1000 ft early rising to 2000 to 3000 ft by late morning rising to 4000 to 5000 ft during the afternoon. Transport wind SSE to S at 14 - 24 mph during the morning becoming S to SSW at 25 - 45 mph during the afternoon. Surface wind ESE to SSE at 6 - 10 mph during the morning becoming SE to S at 10 - 16 mph during the afternoon. 3. BURNING INSTRUCTIONS FOR ALL ZONES IN THE WESTERN OREGON AREA These instructions are valid for burning conducted on Friday, February 11, 2011. ================================================================= Coast Range Zone 601 and 612 Units should be 750 tons or less, spaced 15 miles apart, and 15 miles from downwind SSRAs. North of Tillamook in Zone 601, use standard guidance matrix. (See section 5 below.) Zone 602 and 603 No burning allowed. North of T3N in Zone 602, use standard guidance matrix. (See section 5 below.) Units may be 500 tons or less, spaced 15 miles apart, south of the Siuslaw River in Zone 603. Zone 615 and 616 west of R8W Units should be 1000 tons or less, spaced 15 miles apart, and 15 miles from downwind SSRAs. Higher tonnage is possible south of T29S in Zone 616. Call the forecaster. Zone 616 east of R9W Units should be 500 tons or less, spaced 15 miles apart, and 15 miles from downwind SSRAs. Higher tonnage is possible south of T29S. Call the forecaster. Zone 618 and 619 Use standard guidance matrix. (See section 5 below.) Zone 620 Units should be 1500 tons or less, spaced 15 miles apart, and 15 miles from downwind SSRAs. Cascades All zones except zone 611 Use standard guidance matrix. (See section 5 below.) Ensure adequate distance from downwind SSRAs for smoke to dissipate. Verify transport winds away from SSRA if burning within 10 miles of the SSRA in Zone 605 and 606. Avoid ignitions north of T24S in Zone 616. Zone 611 Units should be 750 tons or less, spaced 15 miles apart, and 15 miles from downwind SSRAs. Siskiyous Units should be 750 tons or less, spaced 15 miles apart, and 15 miles from downwind SSRAs. ============================================================== 4. SPECIAL NOTE: Call the smoke management duty forecaster at (503) 945-7401 to discuss burning. Please do not call individual's numbers to discuss daily burning. If the forecaster is not available, leave a message and he will return your call as soon as possible. Avoid calling between 2 to 2:30 p.m. The forecast is available on the Internet at: http://oregon.gov/ODF/FIRE/fire.shtml/#Smoke_Management Please ensure your units have been planned and accomplished by checking: http://oregon.gov/ODF/FIRE/SMP/dailysmoke.shtml 5. STANDARD GUIDANCE MATRIX: * Greater than 5000 ft mixing height: No burning within 5 miles of downwind SSRA. Maximum 100 tons per mile from downwind SSRA. Example: 500 ton maximum allowed if burned 5 miles from downwind SSRA. * 3000 - 5000 ft mixing height: No burning within 10 miles of downwind SSRA. Maximum 75 tons per mile from downwind SSRA. Example: 750 ton maximum allowed if burned 10 miles from downwind SSRA. * Less than 3000 ft mixing height: No burning within 15 miles of downwind SSRA. Maximum 50 tons per mile from downwind SSRA. Example: 750 ton maximum allowed if burned 15 miles from downwind SSRA. * All exceptions must be coordinated with the duty forecaster prior to ignition. -------------- next part -------------- An HTML attachment was scrubbed... URL: From smi_west at listsmart.osl.state.or.us Fri Feb 11 14:43:47 2011 From: smi_west at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Fri, 11 Feb 2011 14:43:47 -0800 Subject: SMI West (Smoke Management Instructions) Western Oregon Smoke Management Instructions Message-ID: SMOKE MANAGEMENT FORECAST AND INSTRUCTIONS SALEM FORESTRY WEATHER CENTER OREGON DEPARTMENT OF FORESTRY ISSUED: Friday, February 11, 2011 2:30 PM Pete Parsons 1. DISCUSSION AND FORECAST FOR THE WESTERN OREGON AREA FORECAST ZONES 601-623 SATURDAY The broad upper-level ridge that has been over the region for several days will flatten with increasing westerly flow aloft. Skies will turn cloudy north and mostly cloudy south, with a Pacific cold front spreading rain, from northwest to southeast, across western Oregon during the afternoon and evening. Ahead of the cold front, increasing low-level south to southwesterly winds will improve mixing with fair to good smoke dispersal conditions. OUTLOOK (SUNDAY-TUESDAY) The cold front will likely stall over central and southern Oregon Sunday morning, before migrating back northward, as a warm front, Sunday afternoon. That will maintain at least a chance of rain across all zones under mostly cloudy skies. The snow level should start out between 4500 feet north 6000 feet south, before slowly rising during the afternoon. Smoke dispersal conditions should be fair with weakening mostly southerly low-level winds. As the upper-level flow backs from westerly to southwesterly, most of the rain and higher elevation snow should push into Washington by Monday morning. The northwestern corner of Oregon, and the immediate coastal areas, may continue to pick up some rain Monday morning, with a brief break elsewhere. Smoke dispersal conditions should be good. A strong upper-level trough will approach the coastline Monday afternoon with increasing southwesterly flow aloft. The associated cold front should spread brisk southeast to south winds, and significant rainfall, across western Oregon during the afternoon and evening. Smoke dispersion will be fair to good. Snow levels should remain in the 5-6000 foot range. The strong cold front is forecast to move across the Cascades Tuesday morning with steady precipitation turning more showery. Much colder air aloft will rapidly drop snow levels below 3000 feet with heavy mountain snow likely. Smoke dispersal conditions should be good with southwesterly transport winds. 2. DISPERSION Zone 601, 602, 603 and 612 (North Coast Range): MORNING Mixing height below 1500 ft early rising to 2500 - 3500 ft by late morning. Transport wind SSW at 20 - 36 mph. Surface wind SSE to SSW at 8 - 12 mph. AFTERNOON Mixing height rising to 4000 - 5000 ft. Transport wind SW at 28 - 48 mph. Surface wind SSW to SW at 10 - 20 mph. EVENING Mixing height 3500 - 4500 ft. Transport wind SW at 25 - 43 mph. Surface wind S to SSW at 10 - 22 mph. Zone 605-611 (North Cascades): MORNING Mixing height below 1500 ft early rising to 2500 - 3500 ft by late morning. Transport wind SSW to SW at 15 - 29 mph. Surface wind SSE to SSW at 8 - 12 mph. AFTERNOON Mixing height rising to 4000 - 5000 ft. Transport wind SW at 23 - 41 mph. Surface wind SSW to WSW at 9 - 15 mph. EVENING Mixing height 3500 - 4500 ft. Transport wind similar to afternoon. Surface wind SSW to SW at 10 - 18 mph. Zone 615-620 (South Coast Range): MORNING Mixing height below 1500 ft early rising to 2500 - 3500 ft by late morning. Transport wind SSW to SW at 18 - 30 mph. Surface wind SSE to SSW at 6 - 10 mph. AFTERNOON Mixing height rising to 4000 - 5000 ft. Transport wind SW at 20 - 36 mph. Surface wind SSW to WSW at 9 - 15 mph. EVENING Mixing height 3000 - 4000 ft. Transport wind SSW at 18 - 32 mph. Surface wind similar to afternoon. Zone 616-623 (South Cascades): MORNING Mixing height below 1200 ft early rising to 2300 - 3300 ft by late morning. Transport wind S to SSW at 12 - 24 mph. Surface wind SE to SSW at 6 - 10 mph. AFTERNOON Mixing height rising to 4000 - 5000 ft. Transport wind increases to SSW to SW at 18 - 30 mph. Surface wind SSW to SW at 8 - 12 mph. EVENING Mixing height 2500 - 3500 ft. Transport wind SSW to SW at 15 - 25 mph. Surface wind similar to afternoon. OUTLOOK: SUNDAY Mixing height 2100 to 3100 ft throughout the day. Transport wind SSE to SSW at 10 - 18 mph. Surface wind SE to SSW at 5 - 9 mph. MONDAY Mixing height 1900 to 2900 ft during the morning rising to 3800 to 4800 ft during the afternoon. Transport wind S to SSW at 12 - 24 mph during the morning becoming SSW to SW at 16 - 30 mph during the afternoon. Surface wind SSE to SSW at 6 - 10 mph. TUESDAY Mixing height 4200 to 5000 ft during the morning rising above 5000 ft during the afternoon. Transport wind SSW to SW at 18 - 32 mph. Surface wind SSE to SSW at 8 - 14 mph. 3. BURNING INSTRUCTIONS FOR ALL ZONES IN THE WESTERN OREGON AREA These instructions are valid for burning conducted on Saturday and Sunday, February 12 and 13, 2011. ================================================================= For Saturday: Coast Range Zone 601, 612, and 616 west of R8W Units should be 1200 tons or less, spaced 8 miles apart, and 10 miles from downwind SSRAs. North of Tillamook in Zone 601, use standard guidance matrix. (See section 5 below.) Higher tonnage is possible south of T29S in Zone 616. Call the forecaster. Zone 602 and 603 Units should be 500 tons or less, spaced 8 miles apart, and 10 miles from downwind SSRAs. North of T3N in Zone 602, use standard guidance matrix. (See section 5 below.) Zone 615 Units should be 1500 tons or less, spaced 8 miles apart, and 10 miles from downwind SSRAs. Zone 616 east of R9W Units should be 750 tons or less, spaced 8 miles apart, and 10 miles from downwind SSRAs. Higher tonnage is possible south of T29S. Call the forecaster. Zone 618, 619, and 620 Use standard guidance matrix. (See section 5 below.) Ensure adequate distance from downwind SSRAs for smoke to dissipate. South of T35S in Zone 620 units should be 500 tons or less, spaced 8 miles apart, and 10 miles from downwind SSRAs. Cascades All zones except zone 611 Use standard guidance matrix. (See section 5 below.) Ensure adequate distance from downwind SSRAs for smoke to dissipate. From T18S through T22S in Zone 608 units should be 1000 tons or less, spaced 8 miles apart. Zone 611 Units should be 1000 tons or less, spaced 8 miles apart, and 10 miles from downwind SSRAs. Siskiyous Units should be 1000 tons or less, spaced 8 miles apart, and 10 miles from downwind SSRAs. For Sunday: Coast Range Zone 601 and 612 Units should be 750 tons or less, spaced 15 miles apart, and 15 miles from downwind SSRAs. North of Tillamook in Zone 601, use standard guidance matrix. (See section 5 below.) Zone 602 and 603 No burning allowed. North of T3N in Zone 602, use standard guidance matrix. (See section 5 below.) Units may be 500 tons or less, spaced 15 miles apart, south of the Siuslaw River in Zone 603. Zone 615 and 620 Units should be 1500 tons or less, spaced 10 miles apart, and 12 miles from downwind SSRAs. Zone 616 west of R8W Units should be 1200 tons or less, spaced 10 miles apart, and 12 miles from downwind SSRAs. Higher tonnage is possible south of T29S. Call the forecaster. Zone 616 east of R9W Units should be 750 tons or less, spaced 10 miles apart, and 12 miles from downwind SSRAs. Higher tonnage is possible south of T29S. Call the forecaster. Zone 618 and 619 Use standard guidance matrix. (See section 5 below.) Cascades Zone 605, 606, 607, 608, 609, 610, 617, and 623 Use standard guidance matrix. (See section 5 below.) Ensure adequate distance from downwind SSRAs for smoke to dissipate. Verify transport winds away from SSRA if burning within 10 miles of the SSRA in Zone 605 and 606. Zone 611 Units should be 750 tons or less, spaced 15 miles apart, and 15 miles from downwind SSRAs. Zone 616 Units should be 750 tons or less, spaced 10 miles apart, and 12 miles from downwind SSRAs. Avoid ignitions north of T24S. South of T29S higher tonnage is possible. Call the forecaster. Zone 620 and 622 Units should be 1000 tons or less, spaced 10 miles apart, and 12 miles from downwind SSRAs. Siskiyous Units should be 750 tons or less, spaced 10 miles apart, and 12 miles from downwind SSRAs. ============================================================== 4. SPECIAL NOTE: Call the smoke management duty forecaster at (503) 945-7401 to discuss burning. Please do not call individual's numbers to discuss daily burning. If the forecaster is not available, leave a message and he will return your call as soon as possible. Avoid calling between 2 to 2:30 p.m. The forecast is available on the Internet at: http://oregon.gov/ODF/FIRE/fire.shtml/#Smoke_Management Please ensure your units have been planned and accomplished by checking: http://oregon.gov/ODF/FIRE/SMP/dailysmoke.shtml 5. STANDARD GUIDANCE MATRIX: * Greater than 5000 ft mixing height: No burning within 5 miles of downwind SSRA. Maximum 100 tons per mile from downwind SSRA. Example: 500 ton maximum allowed if burned 5 miles from downwind SSRA. * 3000 - 5000 ft mixing height: No burning within 10 miles of downwind SSRA. Maximum 75 tons per mile from downwind SSRA. Example: 750 ton maximum allowed if burned 10 miles from downwind SSRA. * Less than 3000 ft mixing height: No burning within 15 miles of downwind SSRA. Maximum 50 tons per mile from downwind SSRA. Example: 750 ton maximum allowed if burned 15 miles from downwind SSRA. * All exceptions must be coordinated with the duty forecaster prior to ignition. -------------- next part -------------- An HTML attachment was scrubbed... URL: From smi_west at listsmart.osl.state.or.us Mon Feb 14 08:08:36 2011 From: smi_west at listsmart.osl.state.or.us (ODF Smoke Management Instructions) Date: Mon, 14 Feb 2011 08:08:36 -0800 Subject: SMI West (Smoke Management Instructions) (no subject) Message-ID: SMOKE MANAGEMENT FORECAST AND INSTRUCTIONS SALEM FORESTRY WEATHER CENTER OREGON DEPARTMENT OF FORESTRY ISSUED: Monday, February 14, 2011 7:30 AM Jim Little 1. DISCUSSION AND FORECAST FOR THE WESTERN OREGON AREA FORECAST ZONES 601-623 A low pressure system off the northern California coast is headed northeastward toward Vancouver Island this morning. The low is embedded in a broad cold trough is located over the northern Pacific Ocean. This is giving a generally southwesterly flow aloft over the region. Rainfall will be increasing in northwestern Oregon this afternoon but amounts during the day will only reach a tenth of an inch or so. Expect heavier amounts this evening and overnight. Much of southwestern Oregon should remain dry during the day. As the low tracks northward strong gusty winds will develop tonight and high wind warnings are out for coastal regions of the state. Mixing heights are quite high and smoke dispersal conditions are good today. With the renewed rainfall and anticipated lowering snow levels after today we will suspend writing daily forecasts beginning this afternoon. Forecasts will resume when burning conditions improve and activity increases. In the meantime individual burns may be handled by calling the Smoke Management forecast desk in Salem at 503-945-7401. 2. DISPERSION Zone 601, 602, 603 and 612 (North Coast Range): MORNING Mixing height above 5000 ft. Transport wind SSW at 25 - 45 mph. Surface wind SSW to SW at 14 - 28 mph. AFTERNOON Mixing height above 5000 ft. Transport wind SSW at 29 - 49 mph. Surface wind similar to morning. EVENING Mixing height remains above 5000 ft. Transport wind SW at 26 - 46 mph. Surface wind SSW to WSW at 15 - 29 mph. Zone 605-611 (North Cascades): MORNING Mixing height above 5000 ft. Transport wind SSW at 22 - 40 mph. Surface wind SSW at 20 - 36 mph. AFTERNOON Mixing height above 5000 ft. Transport wind SSW at 18 - 32 mph. Surface wind SSW to SW at 16 - 30 mph. EVENING Mixing height remains above 5000 ft. Transport wind similar to afternoon. Surface wind similar to afternoon. Zone 615-620 (South Coast Range): MORNING Mixing height above 5000 ft. Transport wind SSW at 20 - 36 mph. Surface wind S to SSW at 15 - 29 mph. AFTERNOON Mixing height 4200 - 5000 ft. Transport wind SSW at 22 - 40 mph. Surface wind SSW at 18 - 32 mph. EVENING Mixing height rising above 5000 ft. Transport wind decreases to SSW to SW at 18 - 30 mph. Surface wind SSW to SW at 15 - 25 mph. Zone 616-623 (South Cascades): MORNING Mixing height 4000 - 5000 ft. Transport wind SSE to SSW at 14 - 28 mph. Surface wind SSE to S at 15 - 25 mph. AFTERNOON Mixing height 3900 - 4900 ft. Transport wind SSW to SW at 16 - 30 mph. Surface wind SSW to SW at 13 - 25 mph. EVENING Mixing height 3800 - 4800 ft. Transport wind SSW at 20 - 34 mph. Surface wind S to SSW at 15 - 29 mph. 3. BURNING INSTRUCTIONS FOR ALL ZONES IN THE WESTERN OREGON AREA These instructions are valid for burning conducted on Monday, February 14, 2011. ================================================================= Coast Range Zone 601 and 612 Units should be 1500 tons or less, spaced 5 miles apart, and 10 miles from downwind SSRAs. North of Tillamook in Zone 601, use standard guidance matrix. (See section 5 below.) Zone 602 and 603 Units should be 750 tons or less, spaced 5 miles apart, and 10 miles from downwind SSRAs. North of T3N in Zone 602, use standard guidance matrix. (See section 5 below.) Zone 615 Units should be 1500 tons or less, spaced 8 miles apart, and 10 miles from downwind SSRAs. Zone 616 west of R8W Units should be 1200 tons or less, spaced 8 miles apart, and 10 miles from downwind SSRAs. Higher tonnage is possible south of T29S. Call the forecaster. Zone 616 east of R9W Units should be 750 tons or less, spaced 8 miles apart, and 10 miles from downwind SSRAs. Higher tonnage is possible south of T29S. Call the forecaster. Zone 618, 619, and 620 Use standard guidance matrix. (See section 5 below.) Ensure adequate distance from downwind SSRAs for smoke to dissipate. Cascades All zones except zone 611 Use standard guidance matrix. (See section 5 below.) Ensure adequate distance from downwind SSRAs for smoke to dissipate. Verify transport winds away from SSRA if burning within 10 miles of the SSRA in Zone 605 and 606. Avoid ignitions north of T24S in Zone 616. Zone 611 Units should be 1000 tons or less, spaced 5 miles apart, and 10 miles from downwind SSRAs. Siskiyous Units should be 1000 tons or less, spaced 8 miles apart, and 10 miles from downwind SSRAs. ============================================================== 4. SPECIAL NOTE: Call the smoke management duty forecaster at (503) 945-7401 to discuss burning. Please do not call individual's numbers to discuss daily burning. If the forecaster is not available, leave a message and he will return your call as soon as possible. Avoid calling between 2 to 2:30 p.m. The forecast is available on the Internet at: http://oregon.gov/ODF/FIRE/fire.shtml/#Smoke_Management Please ensure your units have been planned and accomplished by checking: http://oregon.gov/ODF/FIRE/SMP/dailysmoke.shtml 5. STANDARD GUIDANCE MATRIX: * Greater than 5000 ft mixing height: No burning within 5 miles of downwind SSRA. Maximum 100 tons per mile from downwind SSRA. Example: 500 ton maximum allowed if burned 5 miles from downwind SSRA. * 3000 - 5000 ft mixing height: No burning within 10 miles of downwind SSRA. Maximum 75 tons per mile from downwind SSRA. Example: 750 ton maximum allowed if burned 10 miles from downwind SSRA. * Less than 3000 ft mixing height: No burning within 15 miles of downwind SSRA. Maximum 50 tons per mile from downwind SSRA. Example: 750 ton maximum allowed if burned 15 miles from downwind SSRA. * All exceptions must be coordinated with the duty forecaster prior to ignition. -------------- next part -------------- An HTML attachment was scrubbed... URL: