Fire Weather Outlook Discussion
Issued by NWS
Issued by NWS
209 FNUS21 KWNS 300546 FWDDY1 Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1245 AM CDT Thu Jul 30 2026 Valid 301200Z - 311200Z ...Synopsis... An upper high will continue to slowly drift westward over the Southwest and expand from off the southern California coast through the southern Plains. Upper-level heights will build over the Intermountain West, but an upper-level trough will approach the Pacific Northwest overnight. Enough monsoonal moisture remains for isolated to scattered thunderstorms over the higher terrain across the Four Corners region but a drying trend continues. Isolated to perhaps scattered thunderstorms are forecast from central/eastern Idaho into western Montana during the afternoon and evening. An IsoDryT area has been maintained as probabilities of receiving more than 0.1" of rain is less than 50%. Southern portions of the IsoDryT area were trimmed due to some pockets of recent wetting rain. There remains some forecast uncertainty regarding coverage and location of storms due to the smoke that could inhibit insolation and thus terrain circulations that would aid convective development. Additionally, a cluster of high-based storms may persist of overnight in portions western/central Montana. Locally elevated conditions are likely again across portions of the Inland Northwest into the western/northern Great Basin. West-southwest sustained winds of 10-15 mph with gusts of 20-25 mph amid minimum RH of 5-20% are expected across these areas. ..Nauslar.. 07/30/2026 ...Please see www.spc.noaa.gov/fire for graphic product... $$