SMOKE MANAGEMENT FORECAST AND INSTRUCTIONS

SALEM FORESTRY WEATHER CENTER

OREGON DEPARTMENT OF FORESTRY

 

ISSUED: Friday, June 12, 2026       2:30 PM      Sherri Pugh

 

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                      We Need Your Feedback!

The Smoke Management Department is planning to “upgrade” this product so that it more effectively meets your needs.  To assist us with this project, we are requesting feedback from you!

Below are a few questions to help you consider what changes would be most beneficial for you.  All ideas are welcome!

Is the “Short-Term Discussion” useful?  What would enhance it?

Is the “Long-term Discussion” useful?  What would enhance it?

How could the “Dispersion” forecast better meet your needs?

Is the “Outlook” useful?  What would enhance it?

Are the “Burning Instructions” clear and concise?  How could they be improved for your use?

How do you access the forecast product (i.e., Email; web page; telephone recording)?

We are considering discontinuing or upgrading the phone recording of the forecast product.  Is that something you currently use?  Would you use it if you could get your specific forecast from it faster?

Please Email your feedback to: Peter.GJ.Parsons@odf.oregon.gov

Thank you!

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1.  DISCUSSION AND FORECAST FOR THE WESTERN OREGON AREA FORECAST ZONES 601-623 and 639

 

SHORT-TERM DISCUSSION

 

Hot, dry weather is expected through the weekend.  Upper-level ridging will have light N flow aloft.  Temperatures will climb well above average with potential records highs in the Willamette Valley on Sunday.  Winds will be from N-NE at the surface and from NNE-ENE for transport winds.  Mixing heights will be lower on the coast, becoming good by the afternoon across the region despite warming air aloft.

 

EXTENDED DISCUSSION

 

Light winds aloft are expected Monday with continued upper-level ridging.  The Willamette Valley will still have potential for record highs.  Winds will be from NW-N.  Mixing heights will be fair to good.

 

The upper-level ridge breaks down on Tuesday with W flow aloft.  Temperatures will be cooler but above average.  Winds are expected from NW-N.  Mixing heights will be fair to good.  Warm and dry weather continues midweek. 

 

2.  DISPERSION

 

SATURDAY

 

Zone 601, 602, 603, 612 and 615-620 (North and South Coast Range):

 

MORNING

Mixing height below 500 ft early rising to 2300 - 3300 ft by late morning.

Transport wind NE to E at 10 - 22 mph.

Surface wind N to NE at 4 - 8 mph.

 

AFTERNOON

Mixing height rising to 3500 - 4500 ft.

Transport wind similar to morning.

Surface wind similar to morning.

 

EVENING

Mixing height lowers below 1000 ft.

Transport wind decreases to N to NE at 8 - 12 mph.

Surface wind NNW to NNE at 4 - 8 mph.

 

Zone 605-611 and 639 (North Cascades):

 

MORNING

Mixing height below 500 ft early rising to 2500 - 3500 ft by late morning.

Transport wind NNE to ENE at 12 - 24 mph.

Surface wind NNE to ENE at 6 - 10 mph.

 

AFTERNOON

Mixing height rising above 5000 ft.

Transport wind similar to morning.

Surface wind similar to morning.

 

EVENING

Mixing height lowers below 1000 ft.

Transport wind decreases to NNE to ENE at 8 - 12 mph.

Surface wind NNE to ENE at 4 - 8 mph.

 

Zone 616-623 (South Cascades):

 

MORNING

Mixing height below 500 ft early rising to 1900 - 2900 ft by late morning.

Transport wind NE to E at 8 - 12 mph.

Surface wind NNE to ENE at 4 - 8 mph.

 

AFTERNOON

Mixing height rising to 4000 - 5000 ft.

Transport wind similar to morning.

Surface wind similar to morning.

 

EVENING

Mixing height lowers below 1000 ft.

Transport wind N to NE at 6 - 10 mph.

Surface wind N to NE at 4 - 8 mph.

 

OUTLOOK:

 

SUNDAY

In the Coast Range mixing height below 1000 ft early rising to 2000 to 3000 ft by late morning rising to 2800 to 3800 ft during the afternoon.  In the Cascades mixing height below 1000 ft early rising to 2600 to 3600 ft by late morning rising above 5000 ft during the afternoon.  Transport wind NE to ENE at 8 - 12 mph.  Surface wind light and variable.

 

MONDAY

Mixing height below 1000 ft early rising to 2100 to 3100 ft by late morning rising to 3000 to 4000 ft during the afternoon.  Transport wind NNW to NNE at 4 - 8 mph.  Surface wind light and variable.

 

TUESDAY

Mixing height below 1000 ft early rising to 1800 to 2800 ft by late morning rising to 2700 to 3700 ft during the afternoon.  Transport wind NW to N at 6 - 10 mph.  Surface wind NW to N at 4 - 8 mph.

 

3.  BURNING INSTRUCTIONS FOR ALL ZONES IN THE WESTERN OREGON AREA

    - Valid for burning done Saturday through Monday, June 13 through 15, 2026.

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For Saturday:

 

Coast Range

 

All Zones

Use standard guidance matrix. (See section 5 below.)  Ensure adequate distance from downwind SSRAs for smoke to dissipate.

 

 

Cascades

 

Zone 605 and 606

Units should be 750 tons or less, spaced 3 miles apart, and 5 miles from downwind SSRAs.  Higher tonnage is possible south of T20S in Zone 606 - call the forecaster.

 

Zone 607 and 608

Units should be 1500 tons or less, spaced 3 miles apart, and 5 miles from downwind SSRAs.

 

Zone 639, 610, and 611

Use standard guidance matrix - see section 5 below.  Ensure adequate distance from downwind SSRAs for smoke to dissipate.

 

Zone 616 and 617

Units should be 1000 tons or less, spaced 6 miles apart, and 8 miles from downwind SSRAs.

 

Zone 620 and 623

Units should be 1200 tons or less, spaced 6 miles apart, and 8 miles from downwind SSRAs.

 

Zone 622

Units should be 750 tons or less, spaced 6 miles apart, and 8 miles from downwind SSRAs.

 

 

Siskiyous

 

Use standard guidance matrix - see section 5 below.

 

For Sunday:

 

Coast Range

 

All Zones

Use standard guidance matrix. (See section 5 below.)  Ensure adequate distance from downwind SSRAs for smoke to dissipate.

 

 

Cascades

 

Zone 605, 606, 620, and 622

Units should be 750 tons or less, spaced 3 miles apart, and 5 miles from downwind SSRAs.  Higher tonnage is possible south of T20S in Zone 606 - call the forecaster.

 

Zone 607, 608, 616, and 617

Units should be 1500 tons or less, spaced 3 miles apart, and 5 miles from downwind SSRAs.

 

Zone 639, 610, and 611

Use standard guidance matrix - see section 5 below.  Ensure adequate distance from downwind SSRAs for smoke to dissipate.

 

Zone 623

Units should be 1200 tons or less, spaced 3 miles apart, and 5 miles from downwind SSRAs.

 

 

Siskiyous

 

Use standard guidance matrix - see section 5 below.

 

For Monday:

 

Coast Range

 

***Avoid ignitions before 10 a.m. in all zones.***

 

Zone 601, 612, 615, 616, 618, 619, and 620

Use standard guidance matrix. (See section 5 below.)  Avoid burning directly upwind of coastal SSRAs.

 

Zone 602 and 603

Units should be 600 tons or less, spaced 8 miles apart, and 10 miles from downwind SSRAs.  Limit tonnage north of Forest Grove/Hillsboro or Sheridan/Willamina in Zone 602.  Higher tonnage is possible south of T17S in Zone 603.  Call the forecaster.

 

 

Cascades

 

***Avoid ignitions before 10 a.m. in all zones.***

 

Zone 605, 606, 607, 608, 639, 611, 616, 617, and 623

Use standard guidance matrix - see section 5 below.  Ensure adequate distance from downwind SSRAs for smoke to dissipate.  Verify transport winds away from SSRA if burning within 10 miles of the SSRA in Zone 605 and 606.  South of T30S in Zone 616 units should be 1000 tons or less, spaced 6 miles apart.  South of T30S in Zone 617 units should be 1000 tons or less, spaced 6 miles apart.

 

Zone 610

Units should be 1200 tons or less, spaced 6 miles apart, and 8 miles from downwind SSRAs.

 

Zone 620 and 622

Units should be 750 tons or less, spaced 6 miles apart, and 8 miles from downwind SSRAs.

 

 

Siskiyous

 

***Avoid ignitions before 10 a.m.***

 

Use standard guidance matrix - see section 5 below. Ensure adequate distance from downwind SSRAs for smoke to dissipate.

 

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4.  SPECIAL NOTES:

 

    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

 

    Call the smoke management duty forecaster at (503) 945-7401 to

    discuss burning. Please do not call individual's numbers to

    discuss daily burning. If the forecaster is not available,

    leave a message and they will return your call as soon as possible.

    Avoid calling between 1:30 to 2:45 p.m.

 

    The forecast is available on the Internet at:

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

    Daily/smi.htm

 

    Please ensure your units have been planned and accomplished by

    checking: http://www.oregon.gov/ODF/Fire/Pages/Burn.aspx

 

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

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

    ?id=a7e321dc8fc444b7a33fbc67bc673a3b

 

    The forecast/instruction telephone recording is: (503) 945-7400.

 

    To subscribe to or unsubscribe from the email list for this

    product, please go to the link:

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

 

 

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.

    Example: 300 tons allowed if burned 5 miles from a downwind SSRA.

 

  * 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.