SMOKE MANAGEMENT
FORECAST AND INSTRUCTIONS
SALEM FORESTRY
WEATHER CENTER
OREGON DEPARTMENT
OF FORESTRY
ISSUED: Friday,
July 11, 2025
2:30 PM Pete Parsons
1. DISCUSSION AND
FORECAST FOR THE WESTERN OREGON AREA FORECAST ZONES 601-623 and 639
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*** Constructed
For Guidance (Clearance by Phone Only) ***
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********************** Off-Season
Instructions **********************
Written forecasts/instructions have ended for the
summer.
Verbal smoke clearance must be obtained for all
prescribed burning by calling the ODF forecast office at 503-945-7401.
Office hours are Monday – Friday from 7 a.m. until 5
p.m. (closed weekends/holidays).
Written forecasts will resume in October.
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2. DISPERSION
SATURDAY
Zone 601, 602,
603 and 612 (North Coast Range):
MORNING
Mixing height
below 1000 ft early rising to 1700 - 2700 ft by late morning.
Transport wind NW
to NNE at 6 - 10 mph.
Surface wind NW
to NNE at 4 - 8 mph.
AFTERNOON
Mixing height
rising to 3000 - 4000 ft.
Transport wind similar to morning.
Surface wind similar to morning.
EVENING
Mixing height
1000 - 2000 ft.
Transport wind
NNW to NNE at 10 - 16 mph.
Surface wind similar to afternoon.
Zone 605-611, 639
and 616-623 (North and South Cascades):
MORNING
Mixing height
below 1000 ft early rising to 2000 - 3000 ft by late morning.
Transport wind NW
to NNE at 6 - 10 mph.
Surface wind NW
to NNE at 4 - 8 mph.
AFTERNOON
Mixing height
rising above 5000 ft.
Transport wind similar to morning.
Surface wind similar to morning.
EVENING
Mixing height
2000 - 3000 ft.
Transport wind similar to afternoon.
Surface wind similar to afternoon.
Zone 615-620
(South Coast Range):
MORNING
Mixing height
below 1000 ft early rising to 1700 - 2700 ft by late morning.
Transport wind N
to NE at 10 - 18 mph.
Surface wind N to
NE at 8 - 12 mph.
AFTERNOON
Mixing height
rising to 3000 - 4000 ft.
Transport wind similar to morning.
Surface wind similar to morning.
EVENING
Mixing height
1000 - 2000 ft.
Transport wind similar to afternoon.
Surface wind similar to afternoon.
OUTLOOK:
SUNDAY
Mixing height
below 1000 ft early rising to 1800 to 2800 ft by late morning rising to 3600 to
4600 ft during the afternoon. Transport
wind NNW to NNE at 6 - 10 mph during the morning becoming NNW to NNE at 10 - 16
mph during the afternoon. Surface wind
NNW to NNE at 4 - 8 mph.
MONDAY
Mixing height
below 1000 ft early rising to 2100 to 3100 ft by late morning rising to 3600 to
4600 ft during the afternoon. Transport
wind NNW to NNE at 8 - 14 mph. Surface
wind NW to NNE at 4 - 8 mph.
TUESDAY
Mixing height
below 1000 ft early rising to 2100 to 3100 ft by late morning rising to 3600 to
4600 ft during the afternoon. Transport
wind NNW to NNE at 5 - 9 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
Tuesday, July 12 through 15, 2025.
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For Saturday:
Coast Range
***Avoid
ignitions before 10 a.m. in all zones.***
Zone 601, 612,
615, 616 west of R8W, 618, and 619
Use standard guidance matrix. (See section 5 below.) Avoid burning directly upwind of coastal
SSRAs.
Zone 602, 603,
and 620
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. Higher
tonnage is possible south of the Rogue River in Zone 620. Call the forecaster.
Zone 616 east of
R9W
Units should be
1200 tons or less, spaced 8 miles apart, and 10 miles from downwind SSRAs. Restrict units to 500 tons or less south of
T30S.
Cascades
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 3 miles apart.
South of T30S in Zone 617 units should be 1000 tons or less, spaced 3
miles apart.
Zone 610
Units should be
1200 tons or less, spaced 3 miles apart, and 5 miles from downwind SSRAs.
Zone 620 and 622
Units should be
750 tons or less, spaced 3 miles apart, and 5 miles from downwind SSRAs.
Siskiyous
Use standard
guidance matrix - see section 5 below.
For Sunday:
Coast Range
***Avoid
ignitions before 10 a.m. in all zones.***
Zone 601, 612,
615, 616 west of R8W, 618, and 619
Use standard guidance matrix. (See section 5 below.) Avoid burning directly upwind of coastal
SSRAs.
Zone 602, 603,
and 620
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. Higher
tonnage is possible south of the Rogue River in Zone 620. Call the forecaster.
Zone 616 east of
R9W
Units should be
1200 tons or less, spaced 8 miles apart, and 10 miles from downwind SSRAs. Restrict units to 500 tons or less south of
T30S.
Cascades
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 3 miles apart.
South of T30S in Zone 617 units should be 1000 tons or less, spaced 3
miles apart.
Zone 610
Units should be
1200 tons or less, spaced 3 miles apart, and 5 miles from downwind SSRAs.
Zone 620 and 622
Units should be
750 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 west of R8W, 618, and 619
Use standard guidance matrix. (See section 5 below.) Avoid burning directly upwind of coastal
SSRAs.
Zone 602, 603,
and 620
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. Higher
tonnage is possible south of the Rogue River in Zone 620. Call the forecaster.
Zone 616 east of
R9W
Units should be
1200 tons or less, spaced 8 miles apart, and 10 miles from downwind SSRAs. Restrict units to 500 tons or less south of
T30S.
Cascades
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 3 miles apart.
South of T30S in Zone 617 units should be 1000 tons or less, spaced 3
miles apart.
Zone 610
Units should be
1200 tons or less, spaced 3 miles apart, and 5 miles from downwind SSRAs.
Zone 620 and 622
Units should be
750 tons or less, spaced 3 miles apart, and 5 miles from downwind SSRAs.
Siskiyous
Use standard
guidance matrix - see section 5 below.
For Tuesday:
Coast Range
***Avoid
ignitions before 10 a.m. in all zones.***
Zone 601, 612,
and 616 east of R9W
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. Restrict units to 500 tons
or less south of T30S in Zone 616.
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, 618,
and 619
Use standard guidance matrix. (See section 5 below.) Avoid burning directly upwind of the North
Bend/Coos Bay SSRA.
Zone 616 west of
R8W
Units should be
1500 tons or less, spaced 8 miles apart, and 10 miles from downwind SSRAs.
Zone 620
Units should be
300 tons or less, spaced 8 miles apart, and 10 miles from downwind SSRAs. Higher tonnage is possible south of the Rogue
River. Call the forecaster.
Cascades
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. South of T30S in Zone 616
units should be 1000 tons or less, spaced 3 miles apart. South of T30S in Zone 617 units should be
1000 tons or less, spaced 3 miles apart.
Zone 610
Units should be
1200 tons or less, spaced 3 miles apart, and 5 miles from downwind SSRAs.
Zone 620 and 622
Units should be
750 tons or less, spaced 3 miles apart, and 5 miles from downwind SSRAs.
Siskiyous
Use standard
guidance matrix - see section 5 below.
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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.