FNUS21 KWNS 150553 FWDDY1 Day 1 Fire Weather Outlook NWS Storm Prediction Center Norman OK 1252 AM CDT Wed Apr 15 2026 Valid 151200Z - 161200Z ...Synopsis... The upper-level trough will depart the southern Plains through the day today. A weak lee trough will develop in the High Plains. Dry return flow will continue in the southern Appalachians/Mid-Atlantic. ...Southern High Plains... Modest mid-level winds across the southern Rockies will promote a weak lee trough to the east. Surface winds of 15 to locally 20 mph are possible amid a dry airmass (10-20% RH by the afternoon). Elevated fire weather is expected given continued lack of rainfall and dry fuels. ...Southern Appalachians into the Mid-Atlantic... Dry and breezy conditions are expected during the afternoon as temperatures warm into the mid 80s to low 90s F. RH of 25-35% is probable for most areas, but values closer to 20% may occur locally. Very dry fuels will support an elevated fire weather threat. ..Wendt.. 04/15/2026 ...Please see www.spc.noaa.gov/fire for graphic product... $$