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, May 2, 2009       2:35 PM      Nick Yonker

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

First front went through this morning.  Another front will move in from the southwest early Sunday carried along by a strong SW'erly jet stream.  Expect more rainfall during the morning to afternoon before dissipating during the later afternoon to early evening.  Mixing and smoke dispersion will remain good.

    OUTLOOK (MONDAY - WEDNESDAY):

Upper level trough will remain in the eastern Pacific continuing to pump in more fronts.  Next front arrives Monday late afternoon to evening and promises to bring plenty of rain and wind.  Tuesday will see a lull in the activity, and then another front will move in early Wednesday morning.  Expect continued good mixing and smoke dispersion through the period.

2.  DISPERSION

SUNDAY
Mixing height below 3000 ft early rising above 5000 ft by late morning.  Mixing height lowers to 2000 - 3000 ft during the evening.

Transport wind light and variable and controlled by local terrain during the morning.  Transport wind increases to W to NW at 10 - 18 mph during the afternoon and evening.

Surface wind light and variable and controlled by local terrain during the morning.  Surface wind increases to WNW to NNW at 8 - 14 mph during the afternoon and evening.

OUTLOOK:

MONDAY
Mixing height below 1000 ft early rising to 4300 to 5000 ft by late morning rising above 5000 ft during the afternoon.  Transport wind S to SSW at 9 - 15 mph during the morning becoming SSE to SSW at 14 - 28 mph during the afternoon.  Surface wind light and variable during the morning becoming SSE to SSW at 10 - 16 mph during the afternoon.

TUESDAY
Mixing height 4500 to 5000 ft during the morning rising above 5000 ft during the afternoon.  Transport wind SW to W at 18 - 32 mph during the morning becoming WSW to W at 15 - 25 mph during the afternoon.  Surface wind SW to W at 10 - 20 mph.

WEDNESDAY
Mixing height 2800 to 3800 ft during the morning rising above 5000 ft during the afternoon.  Transport wind SW to W at 18 - 32 mph during the morning becoming WSW to W at 22 - 38 mph during the afternoon.  Surface wind SW to WSW at 10 - 20 mph.

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, May 3, 2009.
    ==================================================================

Avoid ignitions within 10 miles to the W through ENE of SSRAs.  For units that will smolder significantly through the night avoid burning within at least 15 miles in all directions of SSRAs.

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