FNUS22 KWNS 261941

FWDDY2



Day 2 Fire Weather Outlook  

NWS Storm Prediction Center Norman OK

0240 PM CDT Thu Jun 26 2025



Valid 271200Z - 281200Z



Elevated to locally critical fire weather conditions are expected

across central and southwest Wyoming Friday. A broad increase in

westerly winds at mid-levels in combination with a dry boundary

layer will support an overlap of 15-20 mph surface winds and

relative humidity of 10-15 percent Friday afternoon. Fuels remain

drier west of the Continental Divide owing to rainfall deficits but

heightened west-southwest winds should be enough to pose at least a

broad elevated fire weather threat across central Wyoming.

Otherwise, forecast (see below) remains on track with no significant

changes to Elevated highlights.



..Williams.. 06/26/2025



.PREV DISCUSSION... /ISSUED 1249 AM CDT Thu Jun 26 2025/



...Synopsis...

Elevated fire weather conditions are expected across parts of

central to southwest Wyoming Friday afternoon. Strengthening zonal

flow over the northern Rockies will promote a more pronounced

surface mass response across the northern High Plains on Friday

compared to today/Thursday. Consequently, low-level winds will

likely be slightly stronger across a broad swath of the eastern

Great Basin and parts of the Four Corners region. In general, most

locations from eastern NV into northern AZ, UT, southern ID, and WY

will see breezy conditions with wind speeds generally in the mid

teens. Across southwest to central WY, downslope flow into the WY

Basin and in the lee of the Wind River Range will regionally augment

surface winds to near 20 mph. Deep mixing will promote frequent

gusts up to 25-30 mph by peak heating as RH values fall into the

teens. Several hours of elevated conditions appear likely, and

periods of critical conditions are possible. Fuels across much of WY

are not as dry compared to locations southwest, but several hours of

dry/windy conditions should promote adequate drying of dead finer

fuels to support the fire weather concern. An expansion of the

Elevated risk area appears possible if confidence in

sustained/widespread 15+ mph winds increases across portions of the

Great Basin/Four Corners region where fuels remain very dry.



...Please see www.spc.noaa.gov/fire for graphic product...



$$

