566 
FNUS22 KWNS 200650
FWDDY2

Day 2 Fire Weather Outlook  
NWS Storm Prediction Center Norman OK
0149 AM CDT Mon Jul 20 2026

Valid 211200Z - 221200Z

...Synopsis...
Along the northwestern periphery of a large-scale ridge encompassing much of the central and western CONUS, ample midlevel moisture will be in place atop a warm and dry air mass across parts of northern CA into OR. This will yield inverted-V profiles with weak (albeit sufficient) buoyancy for isolated high-based thunderstorms across the area during the afternoon and evening hours. Given relatively weak large-scale forcing for ascent, the greatest confidence in thunderstorm development is over the Cascades in southern/central OR. While 0.8 to 1.2 inch PW may promote a mix of wet/dry storms, relatively fast storm motions and the dry boundary layer should limit rainfall. As a result, isolated lightning-induced ignitions will be possible. Elsewhere across the CONUS, minimal fire-weather concerns are expected. 

..Weinman.. 07/20/2026


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


$$