Fire Weather Outlook Discussion
Issued by NWS
Issued by NWS
204 FNUS28 KWNS 132121 FWDD38 Day 3-8 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0419 PM CDT Sun Sep 13 2026 Valid 151200Z - 211200Z ...Synopsis... An upper trough and associated mid-level jet will push into the Great Lakes region by D3/Tuesday while another trough enters the Pacific Northwest. A potential cut-off develops across the western U.S. bringing dry and breezy conditions southeast of the low to portions of the Great Basin Days 3-5/Tuesday-Thursday. An expansive ridge will persist over the southeastern CONUS into the weekend yielding above normal temperatures and mainly dry conditions for much of the Southern Plains, Lower Mississippi Valley and Deep South. However, diffuse surface pressure gradients will keep winds on the light side amid lingering Gulf moisture that should limit a more significant fire weather threat across the region. ...Days 3-5/Tuesday-Thursday - Great Basin... An upper-level trough/low and associated enhanced southwesterly mid-level winds are expected to push into the Pacific Northwest on D3/Tuesday before moving into the northern CA/northern Great Basin for midweek. The dry southwest flow should bring a fire weather threat to portions of central and eastern NV midweek as fuels continue to dry with ERCs rebounding into the 80th percentile by late week. 40% critical probabilities have been introduced into central/eastern NV for Days 3-5/Tuesday-Thursday. ...Southern Plains... A southerly wind on the western periphery of a surface high pressure over the southeastern U.S. is likely to continue each afternoon across portions of the Southern Plains this week. Fuels remain receptive across portions of the Southern Plains but alignment of stronger winds (greater than 15 mph) and critically low RH is not likely based on latest medium range ensemble guidance as somewhat deeper Gulf moisture persists across the region. ..Williams.. 09/13/2026 ...Please see www.spc.noaa.gov/fire for graphic product... $$