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: Friday, November 6, 2009       2:35 PM      Nick Yonker

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

Cold front quickly passed to the east this morning leaving the region under a cool trough pattern with the jet stream overhead.  This will lead to continued unsettled conditions with scattered showers through tomorrow.  Air mass will remain unstable and smoke dispersion excellent.

    OUTLOOK (SUNDAY - TUESDAY):

Upper level trough weakens on Sunday with a minor ridge building in and shutting off any shower activity.  Ridge will pass to the east on Monday with another front approaching for later in the day.  Moisture from the front should move in Monday night and continue into Tuesday.  Other than Sunday night and early Monday, air mass will be mostly unstable and smoke dispersion good.

2.  DISPERSION

SATURDAY
Mixing height above 5000 ft throughout the day.

Transport wind SW to W at 11 - 22 mph.

Surface wind SW to W at 10 - 17 mph.

OUTLOOK:

SUNDAY
Mixing height 3200 to 4200 ft during the morning rising above 5000 ft during the afternoon.  Transport wind SSW to WSW at 8 - 14 mph during the morning becoming SSE to SSW at 5 - 9 mph during the afternoon.  Surface wind SSW to WSW at 6 - 10 mph during the morning becoming light and variable during the afternoon.

MONDAY
Mixing height below 1000 ft early rising to 3000 to 4000 ft by late morning rising to 4000 to 5000 ft during the afternoon.  Transport wind SSE to S at 10 - 22 mph during the morning becoming SSE to SSW at 15 - 30 mph during the afternoon.  Surface wind SE to S at 6 - 10 mph during the morning becoming SE to SSW at 10 - 18 mph during the afternoon.

TUESDAY
Mixing height 3000 to 4000 ft during the morning rising to 4500 to 5000 ft during the afternoon.  Transport wind WSW to WNW at 10 - 20 mph.  Surface wind WSW to WNW at 6 - 12 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 Saturday, November 7, 2009.
    ==================================================================

Avoid ignitions within 10 miles to the SW through W of SSRAs.  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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