634
FNUS28 KWNS 152154
FWDD38

Day 3-8 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0452 PM CDT Tue Jul 15 2025

Valid 171200Z - 231200Z

...Day 3-4/Thursday-Friday...
An upper-level low will usher in deeper monsoon moisture into the
Desert Southwest and Greater Four Corners region through the end of
the week aiding in promoting heavier rainfall with primarily
diurnally driven thunderstorms over higher terrain. Dry thunderstorm
threat will remain on the fringes of the deeper monsoon moisture
across the eastern Great Basin, northern UT and Western Slope on Day
3/Thursday, moving even further north into the central ID/southwest
MT mountains on Day 4/Friday. Increasing westerly flow associated
with an approaching mid-level short wave will usher in stronger
onshore winds into the Pacific Northwest on Day 4/Friday, increasing
fire weather concerns east of the Cascades in WA/OR.

...Day 5-6/Saturday-Sunday...
Breezy and dry conditions expand into the Northwestern U.S. as the
mid-level trough moves into the region. 40 percent probabilities of
critical fire weather conditions were added to the Columbia Basin
and Snake River Plain where fuels are receptive to fire spread. The
aforementioned trough and enhanced deep layer westerly flow will aid
in the evacuation of monsoon moisture from the Western U.S., pushing
thunderstorm development primarily along and east of the Continental
Divide, south of the Mogollon Rim by Day 6/Sunday.

...Day 7-8/Monday-Tuesday...
Uncertainty increases early next week regarding strength of
troughing across the Pacific Northwest, precluding introduction of
critical probabilities at this time. However, ensemble guidance does
indicate a general troughing pattern holding on into early next
week, which typically would bring dry, southwest flow and fire
weather concerns to the Great Basin and portions of the
Intermountain West.

..Williams.. 07/15/2025

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

$$