WWUS83 KUNR 210107 RFWUNR URGENT - FIRE WEATHER MESSAGE National Weather Service Rapid City SD 707 PM MDT Fri Mar 20 2026 ...CRITICAL FIRE WEATHER CONDITIONS THROUGH SATURDAY FOR MUCH OF NORTHEASTERN WYOMING AND WESTERN SOUTH DAKOTA... .Very poor RH recovery tonight for northeastern Wyoming, the Black Hills and foothills, and southwestern South Dakota. The Red Flag Warning remains in effect overnight through Saturday afternoon for these areas. Extremely warm conditions Saturday with highs pushing into the 80s and low 90s and humidity falling into the single digits, particularly along and south of I90. The Red Flag Warning has been extended into the Meade County plains, Haakon County, and south-central South Dakota. A cold front will move through Saturday evening with breezy northerly winds expected and rising RH. SDZ329-331-211615- /O.CAN.KUNR.FW.W.0008.000000T0000Z-260321T0300Z/ /O.EXA.KUNR.FW.W.0009.260321T1700Z-260322T0300Z/ West Central Plains-Haakon County Area- 707 PM MDT Fri Mar 20 2026 ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 9 PM MDT SATURDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 329 AND 331... The National Weather Service in Rapid City has issued a Red Flag Warning for gusty winds and low relative humidity, which is in effect from 11 AM to 9 PM MDT Saturday. The Red Flag Warning has been cancelled. * AFFECTED AREA...Fire Weather Zones 329 West Central Plains and 331 Haakon County Area. * WINDS...West 20 to 30 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...As low as 12 percent. * IMPACTS...The combination of gusty winds and low relative humidity will produce critical fire weather conditions. * IMPACTS...The combination of gusty winds and low relative humidity would produce critical fire weather conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ SDZ327-210215- /O.CAN.KUNR.FW.W.0008.000000T0000Z-260321T0300Z/ Butte County Area- 707 PM MDT Fri Mar 20 2026 ...RED FLAG WARNING IS CANCELLED FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 327... The National Weather Service in Rapid City has cancelled the Red Flag Warning. Winds have diminished this evening and RH as risen into the 20s to around 35 percent this evening. Expect elevated to near-critical fire weather conditions again tomorrow ahead of a cool front. $$ SDZ323-324-211615- /O.EXT.KUNR.FW.W.0008.000000T0000Z-260322T0300Z/ Northern Foot Hills-Eastern Foot Hills- 707 PM MDT Fri Mar 20 2026 ...RED FLAG WARNING NOW IN EFFECT UNTIL 9 PM MDT SATURDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 323 AND 324... * AFFECTED AREA...Fire Weather Zones 323 Northern Foot Hills and 324 Eastern Foot Hills. * WINDS...West 15 to 25 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 11 percent. * IMPACTS...The combination of gusty winds and low relative humidity will produce critical fire weather conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ SDZ319>322-325-326-332-333-WYZ314>318-211615- /O.CON.KUNR.FW.W.0008.000000T0000Z-260322T0300Z/ Northern Black Hills-Central Black Hills-Southern Black Hills- Fall River County Area-Custer County Plains-Pine Ridge Area- Badlands Area-Bennett County Area-Northern Campbell- Southern Campbell-Crook County Plains-Weston County Plains- Wyoming Black Hills- 707 PM MDT Fri Mar 20 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT SATURDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 314, 315, 316, 317, 318, 319, 320, 321, 322, 325, 326, 332, AND 333... * AFFECTED AREA...Fire Weather Zones 314 Northern Campbell, 315 Southern Campbell, 316 Crook County Plains, 317 Weston County Plains, 318 Wyoming Black Hills, 319 Northern Black Hills, 320 Central Black Hills, 321 Southern Black Hills, 322 Fall River County Area, 325 Custer County Plains, 326 Pine Ridge Area, 332 Badlands Area and 333 Bennett County Area. * WINDS...Southwest 15 to 25 mph with gusts up to 35 mph. * RELATIVE HUMIDITY...As low as 8 percent. * IMPACTS...The combination of gusty winds and low relative humidity will produce critical fire weather conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ SDZ334-335-211615- /O.CON.KUNR.FW.W.0009.260321T1700Z-260322T0300Z/ Mellette and Todd Counties-Tripp County- 807 PM CDT Fri Mar 20 2026 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 10 PM CDT SATURDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 334 AND 335... * AFFECTED AREA...Fire Weather Zones 334 Mellette and Todd Counties and 335 Tripp County. * WINDS...Southwest 10 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 9 percent. * IMPACTS...The combination of gusty winds and low relative humidity will produce critical fire weather conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$