Fire Weather Outlook Discussion
Issued by NWS
Issued by NWS
758 FNUS21 KWNS 301611 FWDDY1 Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1111 AM CDT Wed Sep 30 2026 Valid 301700Z - 011200Z ...NO CRITICAL AREAS... No changes to the Day 1 Fire Weather Outlook were necessary as temporarily diminished fire weather concerns exist across the contiguous U.S. Please see previous forecast discussion for more details. ..Williams.. 09/30/2026 .PREV DISCUSSION... /ISSUED 1235 AM CDT Wed Sep 30 2026/ ...Synopsis... A ridge of high pressure will transition into the western CONUS, bringing warmer temperatures and a lighter wind regime to California and the western Great Basin today. The center of an eastward progressing mid-level low will enter New Mexico, gradually weakening as it becomes reincorporated within broader troughing. Southerly flow will deepen ahead of the low, providing ample moisture transport bringing PWAT values above the 95th percentile across much of the central CONUS into the Upper Midwest. This system will induce widespread precipitation over an environment stressed by long-term drought, particularly across portions of the southern Plains and the New Mexico/Colorado Rocky Mountains. Ahead of the advancing moisture, a residual hot and dry airmass will remain in place across the lower Mississippi River Valley and Mid-South where receptive fuels exist; however, light southerly winds of less than 15 mph should limit a broader fire weather threat. ...Please see www.spc.noaa.gov/fire for graphic product... $$