581
FNUS28 KWNS 082029
FWDD38

Day 3-8 Fire Weather Outlook
NWS Storm Prediction Center Norman OK
0327 PM CDT Fri Aug 08 2025

Valid 101200Z - 161200Z

An upper-level ridge over the Southwest will shift westward and
build across much of the West by D4/Monday. An upper-level trough
will eject across the Pacific Northwest D5/Tuesday into
D6/Wednesday, bringing an increase to winds amid dry conditions.
Monsoonal moisture may return northward across portions of Arizona
late in the extended, with possible expansion of dry thunderstorm
chances.

...Dry Thunderstorms...
Residual moisture beneath the ridge should allow for a continuation
of afternoon thunderstorm potential on D3/Sunday for portions of the
Southwest amid low environmental PWAT values and receptive fuels.
10% probabilities have been maintained for the region through
Sunday.

Thunderstorm potential may extend into early next week, with a
gradual increase in moisture northward. Limited predictability
within the weak-flow regime beyond D3/Sunday precludes introducing
any additional highlights.

...Wind/RH...
Elevated to critical conditions may arise next week
(D5/Tuesday-D7/Thursday) for portions of the Pacific Northwest and
northern Great Basin, as a trough moves inland and enhanced westerly
flow overspreads the region. However, considerable spread exists
among medium-range guidance regarding the timing/placement/magnitude
of this trough, precluding the introduction of any highlights at
this time.

..Thornton.. 08/08/2025

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

$$