SMOKE MANAGEMENT FORECAST AND INSTRUCTIONS

SALEM FORESTRY WEATHER CENTER

OREGON DEPARTMENT OF FORESTRY

 

ISSUED: Wednesday, June 10, 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

 

A dry and warming pattern begins on Thursday.  Flow aloft will be from NW with a potent upper-level ridge offshore.  Temperatures will warm above seasonable and mixing heights will be fair to good.  Surface winds will be from N for coastal zones and variable for Cascades zones.  Transport winds will come from NW-NNE.

 

EXTENDED DISCUSSION

 

Friday will have light NW flow aloft with ridging offshore.  Winds will come from NW-N.  Temperatures stay above average and mixing height will be fair to good.

 

Temperatures rise well above average on Saturday and Sunday with light N flow aloft and increasing influence from upper-level ridging.  Mixing heights will be high.  Winds will come from N-NE on Saturday and from N-E on Sunday.

 

2.  DISPERSION

 

THURSDAY

 

Zone 601, 602, 603 and 612 (North Coast Range):

 

MORNING

Mixing height below 500 ft early rising to 2000 - 3000 ft by late morning.

Transport wind NW to N at 4 - 8 mph.

Surface wind light and variable but favors NNW-NNE and controlled by local terrain.

 

AFTERNOON

Mixing height 2500 - 3500 ft.

Transport wind similar to morning.

Surface wind similar to morning.

 

EVENING

Mixing height lowers below 1000 ft.

Transport wind WNW to NNW at 6 - 10 mph.

Surface wind increases to WNW to NNW at 4 - 8 mph.

 

Zone 605-611 and 639 (North Cascades):

 

MORNING

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

Transport wind S to SW at 4 - 8 mph.

Surface wind light and variable and controlled by local terrain.

 

AFTERNOON

Mixing height rising to 3500 - 4500 ft.

Transport wind shifts to WSW to WNW at 4 - 8 mph.

Surface wind similar to morning.

 

EVENING

Mixing height 1000 - 1500 ft.

Transport wind WNW to NNW at 6 - 10 mph.

Surface wind increases to WNW to NNW at 4 - 8 mph.

 

Zone 615-620 (South Coast Range):

 

MORNING

Mixing height below 500 ft early rising to 2000 - 3000 ft by late morning.

Transport wind N to NE at 6 - 10 mph.

Surface wind light and variable but favors NNW-NNE and controlled by local terrain.

 

AFTERNOON

Mixing height 2300 - 3300 ft.

Transport wind similar to morning.

Surface wind similar to morning.

 

EVENING

Mixing height lowers below 1000 ft.

Transport wind NNW to NNE at 6 - 10 mph.

Surface wind increases to NW to N at 4 - 8 mph.

 

Zone 616-623 (South Cascades):

 

MORNING

Mixing height below 500 ft early rising to 2000 - 3000 ft by late morning.

Transport wind light and variable and controlled by local terrain.

Surface wind light and variable and controlled by local terrain.

 

AFTERNOON

Mixing height rising to 3500 - 4500 ft.

Transport wind increases to WNW to NNW at 4 - 8 mph.

Surface wind similar to morning.

 

EVENING

Mixing height 1000 - 1500 ft.

Transport wind NW to N at 6 - 10 mph.

Surface wind increases to WNW to NNW at 4 - 8 mph.

 

OUTLOOK:

 

FRIDAY

Mixing height below 1000 ft early rising to 1900 to 2900 ft by late morning rising to 3400 to 4400 ft during the afternoon.  Transport wind NNW to NNE at 4 - 8 mph.  Surface wind light and variable during the morning becoming NW to N at 4 - 8 mph during the afternoon.

 

SATURDAY

Mixing height below 1000 ft early rising to 2200 to 3200 ft by late morning rising to 3700 to 4700 ft during the afternoon.  Transport wind NNE to ENE at 9 - 15 mph.  Surface wind NNE to ENE at 4 - 8 mph.

 

SUNDAY

Mixing height below 1000 ft early rising to 3500 to 4500 ft by late morning rising above 5000 ft during the afternoon.  Transport wind NE to E at 10 - 18 mph.  Surface wind NNE to ENE at 4 - 8 mph.

 

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

    - Valid for burning done Thursday, June 11, 2026.

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Coast Range

 

Zone 601 and 612

Units should be 1000 tons or less, spaced 8 miles apart, and 10 miles from downwind SSRAs.  Restrict units in or near corridors to 500 tons or less.

 

Zone 602 and 603

Units should be 400 tons or less, spaced 8 miles apart, and 10 miles from downwind SSRAs.  Limit burning in or near corridors.  Higher tonnage is possible south of T17S in Zone 603.  Call the forecaster.

 

Zone 615, 616, 618, 619, and 620

Use standard guidance matrix. (See section 5 below.)  Avoid burning directly upwind of the North Bend/Coos Bay SSRA.

 

 

Cascades

 

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

Use standard guidance matrix - see section 5 below.  Ensure adequate distance from downwind SSRAs for smoke to dissipate.  From T15S through T20S in Zone 608 units should be 1200 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 611

Units should be 1500 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.  East of R2W in Zone 622, use standard guidance matrix - see section 5 below.

 

 

Siskiyous

 

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.