602 
FNUS21 KWNS 240657
FWDDY1

Day 1 Fire Weather Outlook  
NWS Storm Prediction Center Norman OK
0157 AM CDT Mon Aug 24 2026

Valid 241200Z - 251200Z

...Synopsis...
A subtle/low-amplitude midlevel wave will move northeastward across parts of the northern Great Basin today. Farther south, a separate shortwave trough will track southeastward across the central/southern Plains -- along the northeastern periphery of an expansive upper ridge centered on the southern Rockies. In response to this feature, a surface low will evolve slowly eastward across parts of OK.


...Dry Thunderstorms - Northern Great Basin...
Diurnal heating/boundary-layer mixing beneath a well-established midlevel moisture plume will contribute to weak surface-based destabilization across parts of the northern Great Basin today. As large-scale forcing for ascent accompanying the midlevel wave overspreads this instability, isolated high-based thunderstorms will track northeastward across the area. The deeply mixed boundary layer (inverted-V profiles) and 25-30 mph storm motions will favor dry thunderstorms capable of lightning-induced ignitions -- given receptive fuels. 


...Southern Plains...
Along/behind the evolving surface low, a dry air mass (15-20 percent RH) will develop amid 15-20 mph sustained west-southwesterly surface winds. These dry/breezy conditions atop increasingly dry fuels (95th+ percentile ERCs) will yield elevated fire-weather conditions during the late morning and afternoon. 

..Weinman.. 08/24/2026


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


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