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

ODF Smoke Management Instructions smi_northeast at listsmart.osl.state.or.us
Mon Dec 21 07:24:49 PST 2009


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

ISSUED: Monday, December 21, 2009       7:45 AM      Jim Little

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

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

Zone 630 and 632:
Mixing height above 5000 ft during the morning.  Mixing height lowers to 1800 - 2800 ft during the afternoon then rises to 2500 - 3500 ft during the evening.

Transport wind SSW to SW at 18 - 30 mph during the morning.  Transport wind shifts to WNW to NW at 15 - 29 mph during the afternoon and evening.

Surface wind S to SW at 10 - 18 mph during the morning.  Surface wind shifts to W to NW at 10 - 18 mph during the afternoon and evening.

Zone 633 - 638:

Transport wind S to SSW at 12 - 24 mph throughout the morning and afternoon.  Transport wind shifts to W to WNW at 10 - 22 mph during the evening.

Surface wind S to SSW at 9 - 15 mph throughout the morning and afternoon.  Surface wind shifts to W to NW at 9 - 15 mph during the 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, December 21, 2009.
    ==================================================================

Zone 630 and 632:
Avoid ignitions within 12 miles to the SSW through NW of SSRAs.  Watch for shifting transport winds.  No additional restrictions necessary.

Zone 633 - 638:
Avoid ignitions within 12 miles to the S through NW of SSRAs.  Watch for shifting transport winds.  No additional restrictions necessary.

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