SMI South Central (Smoke Management Instructions) South Central Oregon Smoke Management Instructions

[ODF Smoke Management Instructions]

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

ISSUED: Monday, December 21, 2009       7:50 AM      Jim Little

1.  DISCUSSION AND FORECAST FOR SOUTH CENTRAL OREGON ZONES 624 AND 625

An upper level low pressure area will track northwest to southeast across Oregon today keeping precipitation going throughout the day.  Cooler air aloft associated with this feature should provide for relatively high mixing heights and fair to good smoke dispersal conditions.

2.  DISPERSION

MONDAY

Transport wind SW to WSW at 28 - 48 mph during the morning.  Transport decreases to SW to WSW at 24 - 42 mph during the afternoon then shifts to WNW to NW and decreases to 18 - 30 mph during the evening.

Surface wind SSW to WSW at 14 - 28 mph throughout the morning and afternoon.  Surface wind shifts to WNW to NW at 10 - 22 mph during the evening.


3.  BURNING INSTRUCTIONS FOR ZONES 624 AND 625 INCLUDING THE WALKER
    RANGE PORTION OF ZONE 624
This instruction is valid for burning conducted on Monday, December 21, 2009.
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Avoid ignitions within 10 miles to the SW through NW of SSRAs.  Care needed in selecting units as smoke will likely fumigate along the ground in wind prone areas.  Watch for shifting transport winds.  No additional restrictions necessary.

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4.  SPECIAL NOTE:

    The smoke management forecaster is available at (503)
    945-7401.  The smoke management forecaster is available
    to discuss specific burns.  The duty forecaster phone
    number is (503) 945-7401. Please call this number and
    not individual's numbers to discuss daily burning. Please
    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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