Fire Weather Outlook Discussion
Issued by NWS
Issued by NWS
588 FNUS28 KWNS 302125 FWDD38 Day 3-8 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0423 PM CDT Wed Sep 30 2026 Valid 021200Z - 081200Z ...Synopsis... A southward progressing cold front will push into the Ohio River Valley and Southern Plains by Day 3/Friday as an increasingly diffuse mid-level trough lingers over the Southern Plains. The cold front will meet an air mass infused with anomalously high atmospheric moisture leading to wetting rains across parts of the Ohio River Valley and the Southeast. This should result in a contraction of receptive fuels and reduced fire weather concerns for the Ohio River Valley and Mid-South. Forecast confidence remains high in the overall upper-level pattern evolution with a broad ridge gradually building across the western U.S. well into next week. Model guidance consensus still indicates a weak upper wave/low pushing into northern California and Oregon on Day 5/Sunday. However, limited moisture and instability in addition to marginally dry fuels should suppress dry thunderstorm potential and impacts in northern California Sunday. Otherwise, the primary effect of the ridge will be above normal temperatures and dry conditions with resulting drying fuels. Mid/upper troughing and associated enhanced winds could return to the western U.S. by late next week (beyond Day 8/Wednesday), potentially ushering in broader fire weather concerns into areas where multiple days of warm and dry conditions will have preconditioned the fuelscape. ..Williams.. 09/30/2026 ...Please see www.spc.noaa.gov/fire for graphic product... $$