SMI Northeast (Smoke Management Instructions) Northeast Oregon Smoke Management Instructions

[ODF Smoke Management Instructions]

SMOKE MANAGEMENT FORECAST AND INSTRUCTIONS
SALEM FORESTRY WEATHER CENTER
OREGON DEPARTMENT OF FORESTRY

ISSUED: Monday, November 30, 2009       7:45 AM      Jim Little

1.  DISCUSSION AND FORECAST FOR NORTHEAST FORECAST AREA ZONES 630-638

Upper air charts show a weak upper disturbance moving through southern British Columbia and a strong upper ridge building in the Gulf of Alaska.  Conditions will be fairly stable over the region for only poor to marginal smoke dispersal conditions.

2.  DISPERSION

MONDAY

Zone 630 and 632:
Mixing height 2000 - 3000 ft throughout the day.

Transport wind SSW to SW at 15 - 25 mph during the morning.  Transport wind shifts to W to NW and decreases to 9 - 15 mph during the afternoon and evening.

Surface wind S to SW at 9 - 15 mph during the morning.  Surface wind becomes light and variable and controlled by local terrain during the afternoon then increases to SW to WNW at 4 - 8 mph during the evening.

Zone 633 - 638:

Transport wind S to SW at 10 - 18 mph throughout the day.

Surface wind SSE to SSW at 6 - 12 mph during the morning.  Surface wind shifts to SSW to WSW at 5 - 9 mph during the afternoon and evening.


3.  BURNING INSTRUCTIONS FOR NORTHEAST OREGON ZONES 630-638
    The following considerations should be adhered to in addition to
    the requirements of the Oregon Smoke Management Plan. These
    Instructions are valid for burning conducted on Monday, November 30, 2009.
    ==================================================================

Zone 630 and 632:
Avoid ignitions within 12 miles to the S through NW of SSRAs.  For units that will smolder significantly through the night avoid burning within at least 20 miles in all directions of SSRAs.  Watch for shifting transport winds.

Zone 633 - 638:
Delay ignitions until 10:00am.  Avoid ignitions within 15 miles to the SSE through WNW of SSRAs.  For units that will smolder significantly through the night avoid burning within at least 30 miles to the SSE through NNW in or near drainages leading to SSRAs.  Recommend against burning units that will smolder significantly overnight.

    =========================================================
4.  SPECIAL NOTE:

    The smoke management forecaster is available at (503)-
    945-7401. Please call this number and not individual's
    numbers to discuss daily burning.  For large burns (over
    2000 tons) or burns extending over a considerable period,
    please request a special forecast.  Avoid calling before
    8 a.m. and between 2 to 3 p.m.

    This 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


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