Red Flag Warning South Dakota, , Wyoming | Effective 03/30/2026 11:51

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT /9 PM CDT/ THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 314, 315, 316, 317, 318, 319, 320, 321, 322, 323, 324, 325, 326, 329, 332, 333, AND 334... .A strong cold front will move through the area late this afternoon and early this evening. Ahead of the cold front, west winds will increase to 15-25 MPH with gusts from 30-40 MPH. Minimum relative humidities will drop as low as 12%. Gusty northwest winds will occur behind the cold front. High temperatures will be unseasonably warm (15-25F above normal). This combination will lead to critical fire weather conditions this afternoon and early evening, especially considering antecedent very dry and warm weather as well as the drought. * AFFECTED AREA...Fire Weather Zones 314 Northern Campbell, 315 Southern Campbell, 316 Crook County Plains, 317 Weston County Plains, 318 Wyoming Black Hills, 319 Northern Black Hills, 320 Central Black Hills, 321 Southern Black Hills, 322 Fall River County Area, 323 Northern Foot Hills, 324 Eastern Foot Hills, 325 Custer County Plains, 326 Pine Ridge Area, 329 West Central Plains, 332 Badlands Area, 333 Bennett County Area, and 334 Mellette and Todd Counties. * WINDS...West 15 to 25 MPH with gusts 30 to 40 MPH. * RELATIVE HUMIDITY...As low as 12 percent. * IMPACTS...The combination of gusty winds and low relative humidity would produce critical fire weather conditions.