SMOKE MANAGEMENT FORECAST AND INSTRUCTIONS

SALEM FORESTRY WEATHER CENTER

OREGON DEPARTMENT OF FORESTRY

ISSUED: Thursday, June 25, 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 NORTHEAST FORECAST AREA ZONES 637-646

SHORT-TERM DISCUSSION

Temperatures will drop below average on Friday with an upper-level trough over the region. Showers will increase with amounts generally reaching 0.10”. Surface winds will be from W in central zones and variable in northeastern zones. Transport winds will come from WSW. Mixing heights will be high.

EXTENDED DISCUSSION

Showers continue for Saturday with an upper-level low over Oregon. Rainfall amounts could reach 0.20”. Winds will be from NW and temperatures will drop well below seasonable. Mixing heights will be excellent.

Central zones will be dry most of Sunday while a few showers continue in northeastern zones. Upper-level troughing will shift to the east but not move far. Surface winds will be from WNW-NW in central zones and variable in northeastern zones. Transport winds will come from WNW-NW. Mixing heights will be good despite well below average surface temperatures.

Monday turns dry though upper-level troughing continues for the region. Light winds will be from SW-W. Temperatures warm some but remain below seasonable. Mixing heights will be good.

2. DISPERSION

FRIDAY

Zone 640, 642, and 644 West of R35E:

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

Transport wind SW to W at 9 - 15 mph throughout the morning and afternoon. Transport wind shifts to W to NW at 10 - 18 mph during the evening.

Surface wind WSW to WNW at 4 - 8 mph throughout the day.

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

Mixing height below 1500 ft early rising above 5000 ft by late morning. Mixing height lowers to 2000 - 3000 ft during the evening.

Transport wind SW to W at 9 - 15 mph throughout the morning and afternoon. Transport wind shifts to NW to N and decreases to 6 - 10 mph during the evening.

Surface wind light and variable and controlled by local terrain.

OUTLOOK:

SATURDAY

Mixing height 3500 to 4500 ft during the morning rising above 5000 ft during the afternoon. Transport wind WNW to NNW at 9 - 15 mph. Surface wind WNW to NNW at 4 - 8 mph.

SUNDAY

Mixing height 2200 to 3200 ft during the morning rising to 4000 to 5000 ft during the afternoon. Transport wind WNW to NNW at 9 - 15 mph during the morning becoming WNW to NNW at 15 - 25 mph during the afternoon. Surface wind W to NW at 6 - 10 mph.

MONDAY

Mixing height 2000 to 3000 ft during the morning rising to 3500 to 4500 ft during the afternoon. Transport wind WSW to WNW at 6 - 10 mph. Surface wind light and variable.

3. BURNING INSTRUCTIONS FOR NORTHEAST OREGON ZONES 637-646

- Valid for burning done Friday, June 26, 2026.

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Zone 640, 642, and 644 West of R35E:

Follow standard guidance matrix - see section 5 below - for burning units to the SW through NW of SSRAs. Watch for shifting transport winds. No additional restrictions necessary.

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

Follow standard guidance matrix - see section 5 below - for burning units to the SW through N of SSRAs. Watch for shifting transport winds. No additional restrictions necessary.

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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.