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: Saturday, November 14, 2009       2:35 PM      Nick Yonker

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

Upper level ridge has built over the region bringing a dry and mostly sunny day.  A warm front will ride over the top of the ridge and bring some increasing clouds tonight and Sunday.  Expect another fair day with variable clouds tomorrow under the stable ridge pattern.  Smoke dispersion will be poor to fair.

    OUTLOOK (MONDAY - WEDNESDAY):

Upper ridge slides to the east on Monday but trough and next cold front will remain offshore for another day before moving in late Tuesday.  Wind flow will get quite brisk on Monday and Tuesday prior to the front moving in.  This will mix out the air mass and make for good to excellent smoke dispersion.  Upper level trough moves through on Wednesday.

2.  DISPERSION

SUNDAY
Mixing height below 1000 ft early rising to 1800 - 2800 ft by late morning.  Afternoon mixing height 2300 - 3300 ft lowering to 1500 - 2500 ft during the evening.

Transport wind S to SSW at 10 - 18 mph.

Surface wind SSE to SSW at 8 - 13 mph.

OUTLOOK:

MONDAY
Mixing height 2500 to 3500 ft during the morning rising above 5000 ft during the afternoon.  In the west transport wind S to SSW at 16 - 30 mph during the morning becoming S to SSW at 25 - 45 mph during the afternoon.  In the east transport wind SSE to S at 12 - 22 mph during the morning becoming SSE to SSW at 20 - 35 mph during the afternoon.  Surface wind SSE to SSW at 9 - 15 mph during the morning becoming SSE to SSW at 12 - 22 mph during the afternoon.

TUESDAY
Mixing height 2800 to 3800 ft during the morning rising above 5000 ft during the afternoon.  Transport wind S to SSW at 20 - 35 mph.  Surface wind SSE to S at 12 - 22 mph.

WEDNESDAY
Mixing height 4500 to 5000 ft during the morning rising above 5000 ft during the afternoon.  Transport wind WSW to WNW at 10 - 20 mph.  Surface wind WSW to NW at 6 - 10 mph.

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 Sunday, November 15, 2009.
    ==================================================================

Avoid ignitions within 15 miles to the SSE through SW of SSRAs.  Complete ignitions by 3 p.m.

    =========================================================
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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