


Fire Weather Outlook Discussion
Issued by NWS
Issued by NWS
260 FNUS28 KWNS 212145 FWDD38 Day 3-8 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0443 PM CDT Mon Apr 21 2025 Valid 231200Z - 291200Z A gradual amplification of upper-level troughing is expected across the western CONUS this week. The primary fire weather threat will be across the Southwest as dry, southwest flow gradually increases through the weekend. Complementary ridging across the eastern U.S. will provide a more efficient mechanism for moist return flow to the Great Plains and Midwest. The relatively rich boundary layer moisture east of the Rockies interacting with a nascent low pressure system forming day 4/Thursday will promote widespread rainfall across much of the Central Plains eastward into the Midwest and Northeastern U.S. by day 6/Saturday as the low translates eastward. ...Southwest... Synoptic setup with amplifying upper-level trough and enhanced southwest flow will support increasing fire weather concerns across much of the Southwest. Effects on fuels from recent rain and higher elevation snow mainly north of the I-40 corridor will wane as dry conditions settle back into the region. At least Elevated fire weather conditions are expected each day across portions of Arizona and New Mexico through the weekend, with corresponding Critical probabilities where forecast confidence is higher based on latest model guidance consensus. ...Southern Georgia and Florida... Fire weather concerns will remain across the Florida Peninsula as a subtropical high to the east provides persistent east-southeast winds across the state through early next week. Marine influence will mitigate fire weather concerns along the Florida Atlantic Coast but central and western Florida could see overlapping of sufficient winds, low daytime relative humidity of 30-40 percent and persistently dry fuels to promote at least Elevated fire weather threat day 3 through day 5. Drying and curing of available fuels across the Florida Panhandle into southern Georgia will continue through the week but winds are not expected to be particularly strong with no Critical probabilities added. ..Williams/Lyons.. 04/21/2025 ...Please see www.spc.noaa.gov/fire for graphic product... $$