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: Sunday, April 12, 2009       7:50 AM      Jim Little

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

An active Pacific weather system is moving into northwestern Oregon this morning.  Rainfall from this system should remain north of the region for the most part.  Expect mostly cloudy skies and mild temperatures today.  Mixing heights will be favorable for good smoke dispersal.  Transport winds will be generally southwesterly.


2.  DISPERSION

SUNDAY
Mixing height 2400 - 3400 ft during the morning.  Mixing height rises above 5000 ft during the afternoon then lowers below 1000 ft during the evening.

Transport wind SSW to WSW at 8 - 12 mph during the morning.  Transport wind increases to SW to W at 14 - 28 mph during the afternoon and evening.

Surface wind SSW to WSW at 6 - 12 mph during the morning.  Surface wind increases to SW to W at 12 - 24 mph during the afternoon then decreases to WSW to WNW at 8 - 12 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 Sunday, April 12, 2009.
==================================================================

Avoid ignitions within 15 miles to the SSW through WNW of SSRAs.  Care needed in selecting units as smoke will likely fumigate along the ground in wind prone areas.

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


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://omls.oregon.gov/pipermail/smi_south_central/attachments/20090412/6804c939/attachment.html>