


Fire Weather Outlook Discussion
Issued by NWS
Issued by NWS
255 FNUS28 KWNS 142059 FWDD38 Day 3-8 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0357 PM CDT Sat Jun 14 2025 Valid 161200Z - 221200Z ...Days 3-4/Monday-Tuesday... On Day 3/Monday, a midlevel shortwave trough and related strong midlevel westerly flow will track eastward across the Great Basin during peak heating. Deep boundary-layer mixing into the strong flow aloft and a tightening surface pressure gradient will lead to critical fire-weather conditions from southern NV into southern UT. Thereafter, the midlevel shortwave trough and strong flow aloft will continue eastward across the Southwest on Day 4/Tuesday. Given a warm/dry air mass and increasingly dry fuels, critical fire-weather conditions are expected across parts of eastern AZ and western/central NM. ...Days 6-8/Thursday-Saturday... Deep-layer southwesterly flow will gradually strengthen across the Great Basin ahead of an evolving large-scale trough. As these strong winds overspread a deeply mixed air mass each afternoon, an expansive area of elevated to critical fire-weather can be expected. As the midlevel trough advances eastward across the Intermountain West into the weekend, strong northerly winds will overspread CA, supporting increasing fire-weather concerns over areas of receptive fuels. Higher probabilities may eventually be needed during this time frame as the overall timing/evolution of the large-scale trough becomes more clear. ..Weinman.. 06/14/2025 ...Please see www.spc.noaa.gov/fire for graphic product... $$