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, October 31, 2009       2:35 PM      Nick Yonker

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

Cold front has moved by to the east and will give way to a fairly flat upper level ridge tomorrow.  Air mass will slowly stabilize overnight as skies clear.  Surface high pressure will build to the north and turn wind flow northerly to offshore.  Smoke dispersion will be mostly poor to fair.

    OUTLOOK (MONDAY - WEDNESDAY):

Upper ridge will remain in place Monday and Tuesday keeping the air mass stable and smoke dispersion poor.  Expect mostly sunny skies.  A minor front will bring increasing clouds later Wednesday.  Air mass will remain stable and smoke dispersion mostly poor.

2.  DISPERSION

SUNDAY
Mixing height below 1000 ft early rising to 2200 - 3200 ft by late morning.  Afternoon mixing height rises to 2800 - 3800 ft then lowers below 1000 ft during the evening.

Transport wind light and variable and controlled by local terrain during the morning.  Transport wind increases to NNW to NNE at 4 - 8 mph during the afternoon then becomes light and variable during the evening.

Surface wind light and variable and controlled by local terrain.

OUTLOOK:

MONDAY
Mixing height below 1000 ft early rising to 1800 to 2800 ft by late morning rising to 2500 to 3500 ft during the afternoon.  Transport wind SSE to SSW at 4 - 8 mph during the morning becoming WSW to NW at 6 - 10 mph during the afternoon.  Surface wind light and variable during the morning becoming W to NW at 4 - 8 mph during the afternoon.

TUESDAY
Mixing height below 1000 ft early rising to 1000 to 2000 ft by late morning and through the afternoon.  Transport wind light and variable during the morning becoming WSW to WNW at 8 - 12 mph during the afternoon.  Surface wind light and variable during the morning becoming W to NW at 4 - 8 mph during the afternoon.

WEDNESDAY
Mixing height below 1000 ft early rising to 1000 to 1700 ft by late morning and through the afternoon.  Transport wind light and variable during the morning becoming SW to WSW at 9 - 15 mph during the afternoon.  Surface wind light and variable during the morning becoming SW to WNW at 5 - 9 mph during the afternoon.

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 1, 2009.
    ==================================================================

Avoid ignitions within 15 miles in all directions of SSRAs.  For units that will smolder significantly through the night avoid burning within at least 30 miles in all directions of SSRAs.  Recommend against burning units that will smolder significantly overnight.  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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