Fire Weather Outlook Discussion
Issued by NWS
Issued by NWS
429 FNUS21 KWNS 121646 FWDDY1 Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1045 AM CST Wed Nov 12 2025 Valid 121700Z - 131200Z ...NO CRITICAL AREAS... ...Mid-Atlantic... Broad west/northwest flow on the southern periphery of a mid-level trough will persist over the Appalachians/Mid-Atlantic regions today. West-southwest winds of 10-15 mph with locally higher speeds in favored terrain along and leeward of the Blue Ridge Mountains are expected through the afternoon. However, limited RH reductions in the 30-35% range and recent rainfall should limit a more significant fire weather threat east across the region, although locally elevated/brief concerns could exist where RH drops to around 25%. ...Southern High Plains... A subtle mid-level perturbation within modest westerly flow over the central/southern Rockies will move into the eastern CO/NM through today, while week lee troughing develops along the central High Plains. Erosion of a shallow temperature inversion under mostly clear skies should allow a relatively well-mixed, dry boundary layer to develop through the afternoon. South-southwest winds of around 15 mph along with relative humidity close to 15% should briefly align across northeastern NM/southeastern CO vicinity. However, marginally dry fuels does not support a broader fire weather threat, with no elevated highlights added for this update. ..Williams.. 11/12/2025 .PREV DISCUSSION... /ISSUED 0155 AM CST Wed Nov 12 2025/ ...Synopsis... Within the base of a broad midlevel trough over the eastern CONUS, strong deep-layer westerly flow will overspread a relatively dry air mass across the Mid-Atlantic. Shallow boundary-layer mixing into the enhanced flow aloft, combined with a modest surface pressure gradient, will favor 10-15 mph sustained west-southwesterly surface winds (with higher gusts) amid 30 percent RH. This may lead to locally elevated fire-weather conditions over any areas that missed out on rainfall during the last week. ...Please see www.spc.noaa.gov/fire for graphic product... $$