Day 1 Fire Weather Outlook  
NWS Storm Prediction Center Norman OK
1113 AM CDT Wed Aug 06 2025

Valid 061700Z - 071200Z

...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF THE GREAT BASIN INTO
THE CENTRAL ROCKIES...

The previous forecast remains on track, with only slight adjustments
made to the ongoing highlights to reflect the latest guidance
consensus.

..Squitieri.. 08/06/2025

.PREV DISCUSSION... /ISSUED 0153 AM CDT Wed Aug 06 2025/

...Synopsis...
Broad midlevel troughing will persist across the northwestern CONUS,
while an expansive mid/upper-level anticyclone remains centered on
the Southwest/southern Rockies.

...Great Basin into the Central Rockies...
Between the midlevel troughing and expansive mid/upper-level
anticyclone, a belt of enhanced deep-layer west-southwesterly flow
will remain in place across the Great Basin into the central
Rockies. A diurnally deepening PBL will extent into this enhanced
flow aloft, yielding an expansive overlap of around 20 mph sustained
west-southwesterly surface winds and 10-15 percent RH. These
conditions, combined with highly receptive fuels, will favor another
day of critical fire-weather conditions across the region. 

...Dry Thunderstorms - Southwest into the Central Rockies...
Boundary-layer mixing beneath a plume of well-established midlevel
moisture extending from the Southwest into the central Rockies will
yield sufficient instability (characterized by inverted-V soundings)
for isolated to widely scattered thunderstorm development --
generally focused along terrain features. PW values of 0.50 to 0.75
inches will promote mostly dry thunderstorms, which will pose a risk
of lightning-induced ignitions and strong outflow winds.

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