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

[ODF Smoke Management Instructions]

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

ISSUED: Thursday, November 12, 2009       7:50 AM      Nick Yonker

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

Upper level low will move into the region today increasing the chance of some snow shower activity.  Minor ridging will follow overnight.  Other than early morning stability, air mass should destabilize during the late morning and afternoon.  Wind flow will generally be light to moderate but with improving mixing, dispersion should be fair to good.

2.  DISPERSION

THURSDAY
Mixing height below 2000 ft early rising to 3000 - 4000 ft by late morning.  Afternoon mixing height rises above 5000 ft then lowers to 1000 - 2000 ft during the evening.

Transport wind SW to W at 9 - 15 mph.

Surface wind SW to W at 5 - 9 mph during the morning.  Surface wind shifts to W to NW at 8 - 12 mph during the afternoon then decreases to WSW to WNW at 4 - 8 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 Thursday, November 12, 2009.
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Avoid ignitions within 12 miles to the SW through NW of SSRAs.  For units that will smolder significantly through the night avoid burning within at least 15 miles to the SW through NW in or near drainages leading to SSRAs.

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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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