


Fire Weather Outlook Discussion
Issued by NWS
Issued by NWS
777 FNUS28 KWNS 092143 FWDD38 Day 3-8 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0441 PM CDT Wed Jul 09 2025 Valid 111200Z - 171200Z ...Days 3-4/Friday-Saturday... A building mid-level ridge across the Western U.S. will promote lighter winds overall but steadily increasing temperatures across the region through the weekend. Farther east, a mid-level trough moving through the northern High Plains Days 3-4/Friday-Saturday will usher in cooler, post-frontal flow into much Northern/Central Plains through the weekend while also bringing scattered showers/thunderstorms to the central and southern High Plains, with wetting rains remaining along and east of the Continental Divide. ...Days 5-6/Sunday-Monday... Another mid-level trough translating southeastward from British Columbia into the Northern Tier states could bring a thunderstorm threat to portions of the Northern Rockies and MT High Plains Day 5/Monday but a deeper moisture plume could limit dry thunderstorm potential. Higher confidence exists for dry and breezy conditions across the Columbia River Basin on Sunday as stronger mid-level flow promotes dry, downslope winds into the basin, as well as accelerated valley winds across the Snake River Plain amid dry fuels and low RH on Monday. ...Day 7-8/Tuesday-Wednesday... A West Coast thermal trough will promote well above normal temperatures and low relative humidity across the coastal ranges of northern CA, OR and WA but winds appear to remain light from latest model guidance consensus. Additionally, confidence remains low of a return of deeper monsoon moisture into the Southwest around midweek, precluding introduction dry thunderstorm probabilities at this time. ..Williams.. 07/09/2025 ...Please see www.spc.noaa.gov/fire for graphic product... $$