FNUS22 KWNS 190705 FWDDY2 Day 2 Fire Weather Outlook NWS Storm Prediction Center Norman OK 0204 AM CDT Thu Mar 19 2026 Valid 201200Z - 211200Z ...CRITICAL FIRE WEATHER AREA FOR PORTIONS OF CENTRAL AND EASTERN WYOMING... ...Synopsis... A persistent upper-level ridge will remain centered over the Southwest on D2/Friday, with modest northwest flow aloft persisting across the central/northern High Plains. Surface high pressure over the Intermountain West coupled with lee troughing across the northern Plains will support a continued downslope wind regime, with dry/windy conditions forecast to yield elevated to critical fire weather concerns across portions of the central and northern High Plains. ...Central/Northern High Plains... Anomalously strong upper-level ridging across the Southwest will continue to support the potential for record warm temperatures across much of the West. With high pressure remaining positioned across the Intermountain West and lee troughing in place across the northern Great Plains, a persistent downslope wind regime is forecast to yield sustained west-northwesterly surface winds of 15-25 mph across much of the central/northern High Plains. Coupled with reduced RH values of 10-15% and receptive fuels, this will support critical fire weather conditions across portions of central/eastern Wyoming. Elevated fire weather concerns are forecast across adjacent areas of the western Wyoming Basin and portions of southwestern South Dakota and western Nebraska where lighter surface winds of 15-20 mph are forecast to overlap reduced minimum RH values of 10-15%. Farther north across much of southern Montana, RH values are expected to remain more marginal (15-25%); however, ongoing fire activity and sustained westerly surface winds of 15-25 mph warrant the addition of Elevated fire weather highlights. ...Oregon... Some guidance indicates westerly surface winds will strengthen amid a tightening surface pressure gradient ahead of an approaching cold front through D2/Friday. Continued dry/windy conditions may support localized elevated fire weather concerns, but remaining uncertainty regarding the strength and duration of stronger winds as well as how low RH will fall in the afternoon precludes the inclusion of Elevated fire weather highlights at this time. Conditions will continue to be monitored for future updates. ..Chalmers.. 03/19/2026 ...Please see www.spc.noaa.gov/fire for graphic product... $$