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Home Return to list Fire Weather Warning 0005 Issued by the Cheyenne Forecast Office
Action: New Issued At: 2026-02-25 13:31:52 387 WWUS85 KCYS 251931 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 1231 PM MST Wed Feb 25 2026 NEZ435>437-WYZ430>433-261215- /O.UPG.KCYS.FW.A.0003.260226T1800Z-260227T0100Z/ /O.NEW.KCYS.FW.W.0005.260226T1800Z-260228T0100Z/ Box Butte/South Sioux/Niobrara River- Lower North Platte River Basin/Scottsbluff National Monument- Lodgepole Creek/Southern Nebraska Panhandle- Laramie Foothills and High Plains-Laramie East High Plains- Bordeaux/Chugwater/Wheatland-Goshen/Middle- Lower North Platte River Basin- 1231 PM MST Wed Feb 25 2026 ...RED FLAG WARNING IN EFFECT FROM 11 AM THURSDAY TO 6 PM MST FRIDAY FOR GUSTY WINDS AND DRY CONDITIONS FOR FIRE WEATHER ZONES 430, 431, 432, 433, 435, 436, AND 437... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from 11 AM Thursday to 6 PM MST Friday. The Fire Weather Watch has been upgraded. * AFFECTED AREA...Fire weather zones 430, 431, 432, 433, 435, 436, and 437. * WIND...West to northwest winds 20 to 25 MPH with gusts up to 35 MPH on Thursday. Stronger winds expected on Friday with gusts over 45 MPH possible. * HUMIDITY...10 to 20 percent, with the lowest relative humidity expected Friday. Poor overnight humidity recoveries are expected Thursday night. * HIGHEST THREAT...The most critical fire weather conditions are expected along the Interstate 80 corridor east of the Laramie Range into the southern Nebraska Panhandle. The driest conditions are expected here with some of the strongest winds. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. 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. && $$ NEZ434-WYZ417-418-261215- /O.NEW.KCYS.FW.W.0005.260226T1800Z-260228T0100Z/ Pine Ridge/Nebraska National Forest- Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland- Middle North Platte River Basin/Niobrara and Converse High Plains- 1231 PM MST Wed Feb 25 2026 ...RED FLAG WARNING IN EFFECT FROM 11 AM THURSDAY TO 6 PM MST FRIDAY FOR GUSTY WINDS AND DRY CONDITIONS FOR FIRE WEATHER ZONES 417, 418, AND 434... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from 11 AM Thursday to 6 PM MST Friday. * AFFECTED AREA...Fire weather zones 434, 417 and 418. * WIND...West to northwest winds 20 to 25 MPH with gusts up to 35 MPH on Thursday. Stronger winds expected on Friday with gusts over 45 MPH possible. * HUMIDITY...15 to 20 percent. Poor overnight humidity recoveries are expected Thursday night. * HIGHEST THREAT...The most critical fire weather conditions are expected along the Interstate 80 corridor east of the Laramie Range into the southern Nebraska Panhandle. The driest conditions are expected here with some of the strongest winds. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ Action: New Issued At: 2026-02-25 13:31:52 387 WWUS85 KCYS 251931 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 1231 PM MST Wed Feb 25 2026 NEZ435>437-WYZ430>433-261215- /O.UPG.KCYS.FW.A.0003.260226T1800Z-260227T0100Z/ /O.NEW.KCYS.FW.W.0005.260226T1800Z-260228T0100Z/ Box Butte/South Sioux/Niobrara River- Lower North Platte River Basin/Scottsbluff National Monument- Lodgepole Creek/Southern Nebraska Panhandle- Laramie Foothills and High Plains-Laramie East High Plains- Bordeaux/Chugwater/Wheatland-Goshen/Middle- Lower North Platte River Basin- 1231 PM MST Wed Feb 25 2026 ...RED FLAG WARNING IN EFFECT FROM 11 AM THURSDAY TO 6 PM MST FRIDAY FOR GUSTY WINDS AND DRY CONDITIONS FOR FIRE WEATHER ZONES 430, 431, 432, 433, 435, 436, AND 437... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from 11 AM Thursday to 6 PM MST Friday. The Fire Weather Watch has been upgraded. * AFFECTED AREA...Fire weather zones 430, 431, 432, 433, 435, 436, and 437. * WIND...West to northwest winds 20 to 25 MPH with gusts up to 35 MPH on Thursday. Stronger winds expected on Friday with gusts over 45 MPH possible. * HUMIDITY...10 to 20 percent, with the lowest relative humidity expected Friday. Poor overnight humidity recoveries are expected Thursday night. * HIGHEST THREAT...The most critical fire weather conditions are expected along the Interstate 80 corridor east of the Laramie Range into the southern Nebraska Panhandle. The driest conditions are expected here with some of the strongest winds. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. 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. && $$ NEZ434-WYZ417-418-261215- /O.NEW.KCYS.FW.W.0005.260226T1800Z-260228T0100Z/ Pine Ridge/Nebraska National Forest- Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland- Middle North Platte River Basin/Niobrara and Converse High Plains- 1231 PM MST Wed Feb 25 2026 ...RED FLAG WARNING IN EFFECT FROM 11 AM THURSDAY TO 6 PM MST FRIDAY FOR GUSTY WINDS AND DRY CONDITIONS FOR FIRE WEATHER ZONES 417, 418, AND 434... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from 11 AM Thursday to 6 PM MST Friday. * AFFECTED AREA...Fire weather zones 434, 417 and 418. * WIND...West to northwest winds 20 to 25 MPH with gusts up to 35 MPH on Thursday. Stronger winds expected on Friday with gusts over 45 MPH possible. * HUMIDITY...15 to 20 percent. Poor overnight humidity recoveries are expected Thursday night. * HIGHEST THREAT...The most critical fire weather conditions are expected along the Interstate 80 corridor east of the Laramie Range into the southern Nebraska Panhandle. The driest conditions are expected here with some of the strongest winds. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ Action: Continued Issued At: 2026-02-26 01:21:12 963 WWUS85 KCYS 260720 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 1220 AM MST Thu Feb 26 2026 NEZ434>437-WYZ417-418-430>433-270000- /O.CON.KCYS.FW.W.0005.260226T1800Z-260228T0100Z/ Pine Ridge/Nebraska National Forest- Box Butte/South Sioux/Niobrara River- Lower North Platte River Basin/Scottsbluff National Monument- Lodgepole Creek/Southern Nebraska Panhandle- Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland- Middle North Platte River Basin/Niobrara and Converse High Plains- Laramie Foothills and High Plains-Laramie East High Plains- Bordeaux/Chugwater/Wheatland-Goshen/Middle- Lower North Platte River Basin- 1220 AM MST Thu Feb 26 2026 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 6 PM MST FRIDAY FOR GUSTY WINDS AND DRY CONDITIONS FOR FIRE WEATHER ZONES 417, 418, 430, 431, 432, 433, 434, 435, 436 AND 437... * AFFECTED AREA...Fire weather zones 417, 418, 430, 431, 432, 433, 434, 435, 436, and 437. * WIND...West to northwest winds 20 to 25 MPH with gusts up to 35 MPH on Thursday. Stronger winds expected on Friday with gusts over 50 MPH possible. * HUMIDITY...15 to 20 percent Thursday and 10 to 15 percent Friday. Poor overnight humidity recoveries are expected Thursday night. * HIGHEST THREAT...The most critical fire weather conditions are expected along the Interstate 80 corridor east of the Laramie Range into the southern Nebraska Panhandle. The driest conditions are expected here with some of the strongest winds. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. 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. && $$ Action: Continued Issued At: 2026-02-26 13:29:19 614 WWUS85 KCYS 261928 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 1228 PM MST Thu Feb 26 2026 NEZ436-437-WYZ430>433-271200- /O.EXT.KCYS.FW.W.0005.000000T0000Z-260301T0000Z/ Lower North Platte River Basin/Scottsbluff National Monument- Lodgepole Creek/Southern Nebraska Panhandle- Laramie Foothills and High Plains-Laramie East High Plains- Bordeaux/Chugwater/Wheatland-Goshen/Middle- Lower North Platte River Basin- 1228 PM MST Thu Feb 26 2026 ...RED FLAG WARNING NOW IN EFFECT UNTIL 5 PM MST SATURDAY FOR GUSTY WINDS AND LOW RH FOR FIRE WEATHER ZONES 430, 431, 432, 433, 436, AND 437... * AFFECTED AREA...Fire weather zones 430, 431, 432, 433, 436, and 437. * WIND...West to northwest winds 20 to 25 MPH with gusts up to 40 MPH on Thursday. Strongest winds expected on Friday with gusts over 50-60 MPH possible. * HUMIDITY...15 to 20 percent Thursday, 10 to 15 percent Friday and Saturday. Poor overnight humidity recoveries are expected Thursday and Friday night. * HIGHEST THREAT...The most critical fire weather conditions are expected along the Interstate 80 corridor east of the Laramie Range into the southern Nebraska Panhandle. The driest conditions are expected here with some of the strongest winds. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ NEZ434-435-WYZ417-418-271200- /O.CON.KCYS.FW.W.0005.000000T0000Z-260228T0100Z/ Pine Ridge/Nebraska National Forest- Box Butte/South Sioux/Niobrara River- Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland- Middle North Platte River Basin/Niobrara and Converse High Plains- 1228 PM MST Thu Feb 26 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM MST FRIDAY FOR GUSTY WINDS AND LOW RH FOR FIRE WEATHER ZONES 417, 418, 434, AND 435... * AFFECTED AREA...Fire weather zones 417, 418, 434, 435. * WIND...West to northwest winds 15 to 20 MPH with gusts up to 35 MPH on Thursday. Strongest winds expected on Friday with gusts over 50 MPH possible. * HUMIDITY...18 to 22 percent Thursday and 13 to 18 percent Friday. Poor overnight humidity recoveries are expected Thursday night. * HIGHEST THREAT...Most impactful conditions will occur further to the south, however moderate to low RH values alongside very gusty winds will still create a critical environment for new fire starts in this area. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. 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. && $$ Action: Time Extended Issued At: 2026-02-26 13:29:19 614 WWUS85 KCYS 261928 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 1228 PM MST Thu Feb 26 2026 NEZ436-437-WYZ430>433-271200- /O.EXT.KCYS.FW.W.0005.000000T0000Z-260301T0000Z/ Lower North Platte River Basin/Scottsbluff National Monument- Lodgepole Creek/Southern Nebraska Panhandle- Laramie Foothills and High Plains-Laramie East High Plains- Bordeaux/Chugwater/Wheatland-Goshen/Middle- Lower North Platte River Basin- 1228 PM MST Thu Feb 26 2026 ...RED FLAG WARNING NOW IN EFFECT UNTIL 5 PM MST SATURDAY FOR GUSTY WINDS AND LOW RH FOR FIRE WEATHER ZONES 430, 431, 432, 433, 436, AND 437... * AFFECTED AREA...Fire weather zones 430, 431, 432, 433, 436, and 437. * WIND...West to northwest winds 20 to 25 MPH with gusts up to 40 MPH on Thursday. Strongest winds expected on Friday with gusts over 50-60 MPH possible. * HUMIDITY...15 to 20 percent Thursday, 10 to 15 percent Friday and Saturday. Poor overnight humidity recoveries are expected Thursday and Friday night. * HIGHEST THREAT...The most critical fire weather conditions are expected along the Interstate 80 corridor east of the Laramie Range into the southern Nebraska Panhandle. The driest conditions are expected here with some of the strongest winds. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ NEZ434-435-WYZ417-418-271200- /O.CON.KCYS.FW.W.0005.000000T0000Z-260228T0100Z/ Pine Ridge/Nebraska National Forest- Box Butte/South Sioux/Niobrara River- Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland- Middle North Platte River Basin/Niobrara and Converse High Plains- 1228 PM MST Thu Feb 26 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM MST FRIDAY FOR GUSTY WINDS AND LOW RH FOR FIRE WEATHER ZONES 417, 418, 434, AND 435... * AFFECTED AREA...Fire weather zones 417, 418, 434, 435. * WIND...West to northwest winds 15 to 20 MPH with gusts up to 35 MPH on Thursday. Strongest winds expected on Friday with gusts over 50 MPH possible. * HUMIDITY...18 to 22 percent Thursday and 13 to 18 percent Friday. Poor overnight humidity recoveries are expected Thursday night. * HIGHEST THREAT...Most impactful conditions will occur further to the south, however moderate to low RH values alongside very gusty winds will still create a critical environment for new fire starts in this area. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. 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. && $$ Action: Continued Issued At: 2026-02-27 00:39:38 568 WWUS85 KCYS 270639 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 1139 PM MST Thu Feb 26 2026 NEZ436-437-WYZ430>433-280000- /O.CON.KCYS.FW.W.0005.000000T0000Z-260301T0000Z/ Lower North Platte River Basin/Scottsbluff National Monument- Lodgepole Creek/Southern Nebraska Panhandle- Laramie Foothills and High Plains-Laramie East High Plains- Bordeaux/Chugwater/Wheatland-Goshen/Middle- Lower North Platte River Basin- 1139 PM MST Thu Feb 26 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM MST SATURDAY FOR GUSTY WINDS AND LOW RH FOR FIRE WEATHER ZONES 430, 431, 432, 433, 436, AND 437... * AFFECTED AREA...Fire weather zones 430, 431, 432, 433, 436, and 437. * WIND...West to northwest winds 20 to 35 MPH with gusts over 50-60 MPH possible. West to northwest winds 20 to 25 MPH with gusts 25 to 35 MPH for Saturday. * HUMIDITY...10 to 15 percent Friday and Saturday. Poor overnight humidity recoveries are expected Thursday and Friday night. * HIGHEST THREAT...The most critical fire weather conditions are expected along the Interstate 80 corridor east of the Laramie Range into the southern Nebraska Panhandle. The driest conditions are expected here with some of the strongest winds. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ NEZ434-435-WYZ417-418-280000- /O.CON.KCYS.FW.W.0005.000000T0000Z-260228T0100Z/ Pine Ridge/Nebraska National Forest- Box Butte/South Sioux/Niobrara River- Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland- Middle North Platte River Basin/Niobrara and Converse High Plains- 1139 PM MST Thu Feb 26 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM MST FRIDAY FOR GUSTY WINDS AND LOW RH FOR FIRE WEATHER ZONES 417, 418, 434, AND 435... * AFFECTED AREA...Fire weather zones 417, 418, 434, 435. * WIND...West to northwest winds 20 to 30 MPH, gusting over 50 MPH. * HUMIDITY...13 to 18 percent. Poor overnight humidity recoveries are expected Thursday night. * HIGHEST THREAT...Most impactful conditions will occur further to the south, however moderate to low RH values alongside very gusty winds will still create a critical environment for new fire starts in this area. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. 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. && $$ Action: Continued Issued At: 2026-02-27 00:39:38 568 WWUS85 KCYS 270639 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 1139 PM MST Thu Feb 26 2026 NEZ436-437-WYZ430>433-280000- /O.CON.KCYS.FW.W.0005.000000T0000Z-260301T0000Z/ Lower North Platte River Basin/Scottsbluff National Monument- Lodgepole Creek/Southern Nebraska Panhandle- Laramie Foothills and High Plains-Laramie East High Plains- Bordeaux/Chugwater/Wheatland-Goshen/Middle- Lower North Platte River Basin- 1139 PM MST Thu Feb 26 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM MST SATURDAY FOR GUSTY WINDS AND LOW RH FOR FIRE WEATHER ZONES 430, 431, 432, 433, 436, AND 437... * AFFECTED AREA...Fire weather zones 430, 431, 432, 433, 436, and 437. * WIND...West to northwest winds 20 to 35 MPH with gusts over 50-60 MPH possible. West to northwest winds 20 to 25 MPH with gusts 25 to 35 MPH for Saturday. * HUMIDITY...10 to 15 percent Friday and Saturday. Poor overnight humidity recoveries are expected Thursday and Friday night. * HIGHEST THREAT...The most critical fire weather conditions are expected along the Interstate 80 corridor east of the Laramie Range into the southern Nebraska Panhandle. The driest conditions are expected here with some of the strongest winds. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ NEZ434-435-WYZ417-418-280000- /O.CON.KCYS.FW.W.0005.000000T0000Z-260228T0100Z/ Pine Ridge/Nebraska National Forest- Box Butte/South Sioux/Niobrara River- Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland- Middle North Platte River Basin/Niobrara and Converse High Plains- 1139 PM MST Thu Feb 26 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM MST FRIDAY FOR GUSTY WINDS AND LOW RH FOR FIRE WEATHER ZONES 417, 418, 434, AND 435... * AFFECTED AREA...Fire weather zones 417, 418, 434, 435. * WIND...West to northwest winds 20 to 30 MPH, gusting over 50 MPH. * HUMIDITY...13 to 18 percent. Poor overnight humidity recoveries are expected Thursday night. * HIGHEST THREAT...Most impactful conditions will occur further to the south, however moderate to low RH values alongside very gusty winds will still create a critical environment for new fire starts in this area. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. 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. && $$ Action: Continued Issued At: 2026-02-27 18:38:58 051 WWUS85 KCYS 280038 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 538 PM MST Fri Feb 27 2026 NEZ434-435-WYZ417-418-280145- /O.EXP.KCYS.FW.W.0005.000000T0000Z-260228T0100Z/ Pine Ridge/Nebraska National Forest- Box Butte/South Sioux/Niobrara River- Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland- Middle North Platte River Basin/Niobrara and Converse High Plains- 538 PM MST Fri Feb 27 2026 ...RED FLAG WARNING WILL EXPIRE AT 6 PM MST THIS EVENING FOR GUSTY WINDS AND LOW RH FOR FIRE WEATHER ZONES 417, 418, 434, AND 435... Conditions are beginning to gradually improve north of the North Platte River Valley. While gusty winds and low RH will produce elevated fire weather conditions in these areas again on Saturday, RH is expected to remain above critical thresholds due to a weak cold front moving into the area. $$ NEZ436-437-WYZ430>433-281200- /O.CON.KCYS.FW.W.0005.000000T0000Z-260301T0000Z/ Lower North Platte River Basin/Scottsbluff National Monument- Lodgepole Creek/Southern Nebraska Panhandle- Laramie Foothills and High Plains-Laramie East High Plains- Bordeaux/Chugwater/Wheatland-Goshen/Middle- Lower North Platte River Basin- 538 PM MST Fri Feb 27 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM MST SATURDAY FOR GUSTY WINDS AND LOW RH FOR FIRE WEATHER ZONES 430, 431, 432, 433, 436, AND 437... * AFFECTED AREA...Fire weather zones 430, 431, 432, 433, 436, and 437. * WIND...West to northwest winds 20 to 25 MPH with gusts of 30 to 40 MPH. * HUMIDITY...10 to 15 percent. Poor overnight humidity recoveries are expected Friday night. * HIGHEST THREAT...The most critical fire weather conditions are expected along the Interstate 80 corridor east of the Laramie Range into the southern Nebraska Panhandle. The driest conditions are expected here with some of the strongest winds. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. 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. && $$ Action: Expired Issued At: 2026-02-27 18:38:58 051 WWUS85 KCYS 280038 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 538 PM MST Fri Feb 27 2026 NEZ434-435-WYZ417-418-280145- /O.EXP.KCYS.FW.W.0005.000000T0000Z-260228T0100Z/ Pine Ridge/Nebraska National Forest- Box Butte/South Sioux/Niobrara River- Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland- Middle North Platte River Basin/Niobrara and Converse High Plains- 538 PM MST Fri Feb 27 2026 ...RED FLAG WARNING WILL EXPIRE AT 6 PM MST THIS EVENING FOR GUSTY WINDS AND LOW RH FOR FIRE WEATHER ZONES 417, 418, 434, AND 435... Conditions are beginning to gradually improve north of the North Platte River Valley. While gusty winds and low RH will produce elevated fire weather conditions in these areas again on Saturday, RH is expected to remain above critical thresholds due to a weak cold front moving into the area. $$ NEZ436-437-WYZ430>433-281200- /O.CON.KCYS.FW.W.0005.000000T0000Z-260301T0000Z/ Lower North Platte River Basin/Scottsbluff National Monument- Lodgepole Creek/Southern Nebraska Panhandle- Laramie Foothills and High Plains-Laramie East High Plains- Bordeaux/Chugwater/Wheatland-Goshen/Middle- Lower North Platte River Basin- 538 PM MST Fri Feb 27 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM MST SATURDAY FOR GUSTY WINDS AND LOW RH FOR FIRE WEATHER ZONES 430, 431, 432, 433, 436, AND 437... * AFFECTED AREA...Fire weather zones 430, 431, 432, 433, 436, and 437. * WIND...West to northwest winds 20 to 25 MPH with gusts of 30 to 40 MPH. * HUMIDITY...10 to 15 percent. Poor overnight humidity recoveries are expected Friday night. * HIGHEST THREAT...The most critical fire weather conditions are expected along the Interstate 80 corridor east of the Laramie Range into the southern Nebraska Panhandle. The driest conditions are expected here with some of the strongest winds. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. 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. && $$ Action: Continued Issued At: 2026-02-28 01:33:10 034 WWUS85 KCYS 280732 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 1232 AM MST Sat Feb 28 2026 WYZ418-010000- /O.EXB.KCYS.FW.W.0005.260228T1800Z-260301T0000Z/ Middle North Platte River Basin/Niobrara and Converse High Plains- 1232 AM MST Sat Feb 28 2026 ...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 5 PM MST THIS AFTERNOON FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONE 418... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from 11 AM this morning to 5 PM MST this afternoon. * AFFECTED AREA...Fire weather zones 418. * WIND...North to northwest winds 15 to 25 MPH with gusts up to 30 MPH. * HUMIDITY...15 to 20 percent. * HIGHEST THREAT...The most critical fire weather conditions are expected along the Interstate 25 corridor into central Converse County. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ NEZ436-437-WYZ430>433-010000- /O.CON.KCYS.FW.W.0005.000000T0000Z-260301T0000Z/ Lower North Platte River Basin/Scottsbluff National Monument- Lodgepole Creek/Southern Nebraska Panhandle- Laramie Foothills and High Plains-Laramie East High Plains- Bordeaux/Chugwater/Wheatland-Goshen/Middle- Lower North Platte River Basin- 1232 AM MST Sat Feb 28 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 430, 431, 432, 433, 436, AND 437... * AFFECTED AREA...Fire weather zones 430, 431, 432, 433, 436, and 437. * WIND...West to northwest winds 20 to 25 MPH with gusts of 30 to 40 MPH. * HUMIDITY...10 to 15 percent. Poor overnight humidity recoveries are expected Friday night. * HIGHEST THREAT...The most critical fire weather conditions are expected along the Interstate 80 corridor east of the Laramie Range into the southern Nebraska Panhandle. The driest conditions are expected here with some of the strongest winds. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. 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. && $$ Action: Time and Area Extended Issued At: 2026-02-28 01:33:10 034 WWUS85 KCYS 280732 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 1232 AM MST Sat Feb 28 2026 WYZ418-010000- /O.EXB.KCYS.FW.W.0005.260228T1800Z-260301T0000Z/ Middle North Platte River Basin/Niobrara and Converse High Plains- 1232 AM MST Sat Feb 28 2026 ...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 5 PM MST THIS AFTERNOON FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONE 418... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from 11 AM this morning to 5 PM MST this afternoon. * AFFECTED AREA...Fire weather zones 418. * WIND...North to northwest winds 15 to 25 MPH with gusts up to 30 MPH. * HUMIDITY...15 to 20 percent. * HIGHEST THREAT...The most critical fire weather conditions are expected along the Interstate 25 corridor into central Converse County. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ NEZ436-437-WYZ430>433-010000- /O.CON.KCYS.FW.W.0005.000000T0000Z-260301T0000Z/ Lower North Platte River Basin/Scottsbluff National Monument- Lodgepole Creek/Southern Nebraska Panhandle- Laramie Foothills and High Plains-Laramie East High Plains- Bordeaux/Chugwater/Wheatland-Goshen/Middle- Lower North Platte River Basin- 1232 AM MST Sat Feb 28 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 430, 431, 432, 433, 436, AND 437... * AFFECTED AREA...Fire weather zones 430, 431, 432, 433, 436, and 437. * WIND...West to northwest winds 20 to 25 MPH with gusts of 30 to 40 MPH. * HUMIDITY...10 to 15 percent. Poor overnight humidity recoveries are expected Friday night. * HIGHEST THREAT...The most critical fire weather conditions are expected along the Interstate 80 corridor east of the Laramie Range into the southern Nebraska Panhandle. The driest conditions are expected here with some of the strongest winds. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. 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. && $$ Action: Continued Issued At: 2026-02-28 13:30:56 197 WWUS85 KCYS 281930 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 1230 PM MST Sat Feb 28 2026 NEZ436-437-WYZ418-430>433-010000- /O.CON.KCYS.FW.W.0005.000000T0000Z-260301T0000Z/ Lower North Platte River Basin/Scottsbluff National Monument- Lodgepole Creek/Southern Nebraska Panhandle- Middle North Platte River Basin/Niobrara and Converse High Plains- Laramie Foothills and High Plains-Laramie East High Plains- Bordeaux/Chugwater/Wheatland-Goshen/Middle- Lower North Platte River Basin- 1230 PM MST Sat Feb 28 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON FOR FIRE WEATHER ZONES 430, 431, 432, 433, 436, AND 437... * AFFECTED AREA...Fire weather zones 430, 431, 432, 433, 436, and 437. * WIND...West to northwest winds 20 to 25 MPH with gusts of 30 to 40 MPH. * HUMIDITY...10 to 15 percent. * HIGHEST THREAT...The most critical fire weather conditions are expected along the Interstate 80 corridor east of the Laramie Range into the southern Nebraska Panhandle. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ Action: Expired Issued At: 2026-02-28 17:34:03 335 WWUS85 KCYS 282333 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 433 PM MST Sat Feb 28 2026 NEZ436-437-WYZ418-430>433-010045- /O.EXP.KCYS.FW.W.0005.000000T0000Z-260301T0000Z/ Lower North Platte River Basin/Scottsbluff National Monument- Lodgepole Creek/Southern Nebraska Panhandle- Middle North Platte River Basin/Niobrara and Converse High Plains- Laramie Foothills and High Plains-Laramie East High Plains- Bordeaux/Chugwater/Wheatland-Goshen/Middle- Lower North Platte River Basin- 433 PM MST Sat Feb 28 2026 ...RED FLAG WARNING WILL EXPIRE AT 5 PM MST THIS AFTERNOON... A stationary front will drift west into the Interstate 25 corridor this evening. This front will bring higher humidities and diminishing winds to the area over the next hour or two. Therefore, the Red Flag Warning will be allowed to expire on time. $$ | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||