SMOKE MANAGEMENT FORECAST AND INSTRUCTIONS

SALEM FORESTRY WEATHER CENTER

OREGON DEPARTMENT OF FORESTRY

 

ISSUED: Friday, January 9, 2026       2:30 PM      Sherri Pugh

 

**************** Air Stagnation Advisory Information ****************

An Air Stagnation Advisory may be in effect for your area (consult the link below for the latest information). Please use extra precautions and limit forestland burning to units that will not worsen air quality within nearby SSRAs.

* Current Air Stagnation Advisories: https://www.weather.gov/wrh/. *

*********************************************************************

1.  DISCUSSION AND FORECAST FOR NORTHEAST FORECAST AREA ZONES 637-646

 

SHORT-TERM DISCUSSION

 

Dry and stable conditions from Saturday will last through the weekend.  Upper-level ridging will park over the region with impacts continuing into the week ahead.  Skies will be mostly sunny with a few mid-to-high level clouds.  Light surface winds will be from SSE-S.  Transport winds are expected from S-SSW.  Temperatures will rise above average.  Mixing heights will be suppressed with less burning near SSRAs.

 

Sunday will have similar weather with mostly sunny skies and above average temperatures.  Surface winds will light from SSE-S and transport winds will come from S-SSW.  Mixing heights will be poor.

 

EXTENDED DISCUSSION

 

Mostly sunny skies are likely Monday with the upper-level ridge in place.  Surface winds will be light and variable, somewhat from SSE-S.  Transport winds will come from SSW-SW.  Mixing heights will be suppressed.

 

Tuesday continues the pattern of stable weather and mostly sunny skies.  Temperatures will climb to well-above average.  Light winds will be from SSE-S for surface winds and S-SSW for transport winds.  Mixing heights will be low.

 

 

2.  DISPERSION

 

SATURDAY

 

Zone 640, 642, and 644 West of R35E:

Mixing height below 500 ft during the morning rising to 1000 - 1900 ft during the afternoon lowering below 1000 ft during the evening.

 

Transport wind SSE to SSW at 8 - 12 mph.

 

Surface wind light and variable and controlled by local terrain during the morning.  Surface wind increases to SSE to SSW at 4 - 8 mph during the afternoon and evening.

 

Zone 637, 643, 645, 646, and 644 East of R34E:

Mixing height below 500 ft during the morning rising to 1000 - 1900 ft during the afternoon lowering below 1000 ft during the evening.

 

Transport wind SSE to SSW at 6 - 10 mph throughout the day.

 

Surface wind light and variable and controlled by local terrain during the morning.  Surface wind increases to ESE to S at 4 - 8 mph during the afternoon and evening.

 

OUTLOOK:

 

SUNDAY

Mixing height below 1000 ft during the morning rising to 1000 to 1900 ft during the afternoon.  Transport wind SE to SSW at 6 - 10 mph.  Surface wind light and variable during the morning becoming ESE to S at 4 - 8 mph during the afternoon.

 

MONDAY

Mixing height below 1000 ft during the morning rising to 1000 to 1900 ft during the afternoon.  Transport wind light and variable during the morning becoming S to SW at 4 - 8 mph during the afternoon.  Surface wind light and variable during the morning becoming ESE to S at 4 - 8 mph during the afternoon.

 

TUESDAY

Mixing height below 1000 ft during the morning rising to 1000 to 1900 ft during the afternoon.  Transport wind SSE to SSW at 4 - 8 mph.  Surface wind light and variable.

 

3.  BURNING INSTRUCTIONS FOR NORTHEAST OREGON ZONES 637-646

    - Valid for burning done Saturday through Monday, January 10 through 12, 2026.

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

 

For Saturday:

 

Zone 640, 642, and 644 West of R35E:

Delay ignitions until 10 a.m. Follow standard guidance matrix - see section 5 below - for burning units to the SE through SW of SSRAs.  For units that will smolder significantly through the night avoid burning within at least 30 miles to the SE through SW in or near drainages leading to SSRAs.  Complete ignitions by 3 p.m. No additional restrictions necessary. 

 

Zone 637, 643, 645, 646, and 644 East of R34E:

Delay ignitions until 10 a.m. Follow standard guidance matrix - see section 5 below - for burning units to the SE through SSW of SSRAs.  For units that will smolder significantly through the night avoid burning within at least 30 miles to the ESE through SSW in or near drainages leading to SSRAs.  Complete ignitions by 3 p.m. No additional restrictions necessary. 

 

For Sunday:

 

Delay ignitions until 10 a.m. Follow standard guidance matrix - see section 5 below - for burning units to the SE through SW of SSRAs.  For units that will smolder significantly through the night avoid burning within at least 30 miles to the SE through SW in or near drainages leading to SSRAs.  Complete ignitions by 3 p.m. No additional restrictions necessary. 

 

For Monday:

 

Delay ignitions until 10 a.m. Follow standard guidance matrix - see section 5 below - for burning units 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.  Complete ignitions by 3 p.m. No additional restrictions necessary. 

 

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

4.  SPECIAL NOTE:

 

    The ODF forecast smoke zones differ from the NWS fire zones and

    are available at:

    https://www.oregon.gov/odf/fire/documents/smoke-forecast-zone-map.pdf

 

    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

    between 1:30 to 2:45 p.m.

 

    http://www.odf.state.or.us/DIVISIONS/protection/fire_protection/

    Daily/neo.htm

 

    To subscribe to or unsubscribe from the email list for this

    product, please go to the link:

    http://weather.smkmgt.com/mailman/listinfo/

 

    Please ensure your units have been planned and accomplished by

    checking: http://oregon.gov/ODF/FIRE/SMP/dailysmoke.shtml

 

    A map of planned and/or accomplished burns is located at:

    http://geo.maps.arcgis.com/apps/webappviewer/index.html

    ?id=a7e321dc8fc444b7a33fbc67bc673a3b

 

 

5.  STANDARD GUIDANCE MATRIX:

 

  * Greater than 5000 ft mixing height: Limit to 150 tons per mile

    from downwind SSRAs.

    Example: 75 tons allowed if burned a half mile from a downwind

    SSRA.

 

  * 3000 - 5000 ft mixing height: Limit to 50 tons per mile if

    burning within 5 miles of downwind SSRAs. Limit to 100 tons

    per mile if burning 5 miles or beyond downwind SSRAs.

    Example #1: 200 tons allowed if burned 4 miles from a downwind

    SSRA.

    Example #2: 500 tons allowed if burned 5 miles from a downwind

    SSRA.

 

  * Less than 3000 ft mixing height: No burning within 5 miles of

    downwind SSRAs. Limit to 60 tons per mile from downwind SSRAs.

 

  * Ensure adequate spacing between units when burning near downwind

    SSRAs.

 

  * Use of polyethylene (PE) sheeting on greater than 75 percent of

    piles in a unit with 60 percent coverage per pile will allow a

    50 percent increase in tonnage over the existing instruction tonnage

    for that zone.

 

  * All exceptions must be coordinated with the duty forecaster

    prior to ignition.

 

 

6.  BURN MONITORING:

 

    Burns over 2000 tons must be monitored (OAR 629-048-0230(3) -

    7/1/14). Monitoring of all burns is highly recommended for both

    smoke management purposes and wildfire potential.