


Fire Weather Outlook Discussion
Issued by NWS
Issued by NWS
809 FNUS28 KWNS 132059 FWDD38 Day 3-8 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0358 PM CDT Fri Jun 13 2025 Valid 151200Z - 211200Z A mid/upper-level ridge centered on the southern/central Rockies will deamplify as a midlevel trough and related strong flow aloft track eastward across the Great Basin and parts of the Southwest and southern/central Rockies on Days 4-5/Monday-Tuesday. The strong flow aloft will overspread a warm/dry antecedent air mass across these regions, promoting elevated to locally critical fire-weather conditions each afternoon. Depending on the receptiveness of fuels, higher probabilities may eventually be needed across parts of the Great Basin on Day 4/Monday and the southern Rockies on Day 5/Tuesday -- given relatively high confidence in the development of critical conditions each day. By Days 7-8/Thursday-Friday, a robust midlevel trough/low should evolve off the Pacific Northwest Coast. While the exact timing/evolution of the trough/low varies among the medium-range guidance, current indications are that strong west-southwesterlies peripheral to this feature will overspread parts of the Great Basin on Day 7/Thursday and/or Day 8/Friday. Therefore, 40-percent Critical probabilities have been added for both days, and future adjustments will likely be needed. ..Weinman.. 06/13/2025 ...Please see www.spc.noaa.gov/fire for graphic product... $$