Fire Weather Outlook Discussion
Issued by NWS
Issued by NWS
431 FNUS21 KWNS 051630 FWDDY1 Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1129 AM CDT Sat Sep 05 2026 Valid 051700Z - 061200Z ...NO CRITICAL AREAS... As an upper low remains anchored over the Pacific Northwest, strong southwesterly flow atop the Great Basin will continue to enhance a very dry boundary layer amid breezy sustained southerly winds of 20-25 mph (gusts up to 35 mph or greater) this afternoon. Meteorological conditions would otherwise support an elevated (or perhaps critical) fire weather threat in southern Nevada and western Utah, but a marginal fuelscape averts any risk areas. Please see the previous discussion for more details. ..Elizalde-Garcia.. 09/05/2026 .PREV DISCUSSION... /ISSUED 1251 AM CDT Sat Sep 05 2026/ ...Synopsis... Similar to Friday, upper-level troughing will persist across the Pacific Northwest and Northeast, with upper level ridging also remaining centered over the southern Great Plains. Modestly strong southwestern flow will continue across much of the Great Basin, northern Rockies, and northern High Plains. This troughing pattern and attendant precipitation, cloud cover, and cooler temperatures will continue to largely limit fire weather concerns across the western U.S. today. Elsewhere, a surface frontal system will continue to bring chances for rain to portions of the Midwest/East Coast. ...Central/Northern Wyoming... While less widespread compared to Friday, sustained southwesterly winds of 10-20 mph and RH values of 15-20% (locally down to 10%) may overlap areas of receptive fuels across portions of central and northern Wyoming this afternoon. These conditions may support locally elevated fire weather concerns; however, the duration and spatial extent of wind/RH overlap are forecast to remain relatively limited. Thus, Elevated highlights have been withheld. ...Great Basin... Southwesterly flow of 15-25 mph amid minimum RH values of 10-20% will continue across the eastern/southern portions of the Great Basin today. Locally elevated fire weather conditions may develop where recent rainfall was minimal and/or where pockets of dry fuels remain. Generally marginal fuels across this region are expected to preclude a broader fire weather risk, however. ...Please see www.spc.noaa.gov/fire for graphic product... $$