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Home Return to list Fire Weather Warning 0009 Issued by the Cheyenne Forecast Office
Action: Continued Issued At: 2026-03-17 20:31:28 492 WWUS85 KCYS 180131 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 731 PM MDT Tue Mar 17 2026 NEZ436-437-WYZ430>433-181200- /O.CAN.KCYS.FW.W.0008.000000T0000Z-260318T0200Z/ /O.CON.KCYS.FW.W.0009.260318T1600Z-260322T0200Z/ 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- 731 PM MDT Tue Mar 17 2026 ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM WEDNESDAY TO 8 PM MDT SATURDAY FOR LOW HUMIDITY WITH STRONG AND GUSTY WINDS FOR FIRE WEATHER ZONES 430, 431, 432, 433, 436, AND 437... ...RED FLAG WARNING IS CANCELLED FOR LOW HUMIDITY WITH STRONG AND GUSTY WINDS FOR FIRE WEATHER ZONES 430, 431, 432, 433, 436, AND 437... The National Weather Service in Cheyenne has cancelled the Red Flag Warning that was in effect until 8 PM MDT this evening. However, the Red Flag Warning which is in effect from 10 AM Wednesday to 8 PM MDT Saturday still remains valid. * AFFECTED AREA...Fire weather zone 430, 431, 432, 433, 436, and 437. * WIND...Sustained winds 20 to 30 mph, gusting up to 35 mph. * HUMIDITY...Between 10 and 15 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * ADDITIONAL DETAILS...Poor overnight humidity recoveries are expected for the duration of the Red Flag Warning. Well above average temperatures are also expected which will contribute considerably to the dry 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. && $$ NEZ434-435-WYZ417>419-181200- /O.CON.KCYS.FW.W.0009.260318T1600Z-260322T0200Z/ Pine Ridge/Nebraska National Forest- Box Butte/South Sioux/Niobrara River- Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland- Middle North Platte River Basin/Niobrara and Converse High Plains- North Laramie Range and Adjacent High Plains- 731 PM MDT Tue Mar 17 2026 ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM WEDNESDAY TO 8 PM MDT SATURDAY FOR CRITICAL RELATIVE HUMIDITY AND BREEZY CONDITIONS... * WIND...Sustained winds 20 to 30 mph, gusting up to 35 mph. * HUMIDITY...10 to 15 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * ADDITIONAL DETAILS...Poor overnight humidity recoveries are expected for the duration of the Red Flag Warning. Well above average temperatures are also expected which will contribute considerably to the dry conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ Action: Continued Issued At: 2026-03-17 20:31:28 492 WWUS85 KCYS 180131 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 731 PM MDT Tue Mar 17 2026 NEZ436-437-WYZ430>433-181200- /O.CAN.KCYS.FW.W.0008.000000T0000Z-260318T0200Z/ /O.CON.KCYS.FW.W.0009.260318T1600Z-260322T0200Z/ 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- 731 PM MDT Tue Mar 17 2026 ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM WEDNESDAY TO 8 PM MDT SATURDAY FOR LOW HUMIDITY WITH STRONG AND GUSTY WINDS FOR FIRE WEATHER ZONES 430, 431, 432, 433, 436, AND 437... ...RED FLAG WARNING IS CANCELLED FOR LOW HUMIDITY WITH STRONG AND GUSTY WINDS FOR FIRE WEATHER ZONES 430, 431, 432, 433, 436, AND 437... The National Weather Service in Cheyenne has cancelled the Red Flag Warning that was in effect until 8 PM MDT this evening. However, the Red Flag Warning which is in effect from 10 AM Wednesday to 8 PM MDT Saturday still remains valid. * AFFECTED AREA...Fire weather zone 430, 431, 432, 433, 436, and 437. * WIND...Sustained winds 20 to 30 mph, gusting up to 35 mph. * HUMIDITY...Between 10 and 15 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * ADDITIONAL DETAILS...Poor overnight humidity recoveries are expected for the duration of the Red Flag Warning. Well above average temperatures are also expected which will contribute considerably to the dry 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. && $$ NEZ434-435-WYZ417>419-181200- /O.CON.KCYS.FW.W.0009.260318T1600Z-260322T0200Z/ Pine Ridge/Nebraska National Forest- Box Butte/South Sioux/Niobrara River- Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland- Middle North Platte River Basin/Niobrara and Converse High Plains- North Laramie Range and Adjacent High Plains- 731 PM MDT Tue Mar 17 2026 ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM WEDNESDAY TO 8 PM MDT SATURDAY FOR CRITICAL RELATIVE HUMIDITY AND BREEZY CONDITIONS... * WIND...Sustained winds 20 to 30 mph, gusting up to 35 mph. * HUMIDITY...10 to 15 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * ADDITIONAL DETAILS...Poor overnight humidity recoveries are expected for the duration of the Red Flag Warning. Well above average temperatures are also expected which will contribute considerably to the dry conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ Action: Continued Issued At: 2026-03-18 01:09:08 743 WWUS85 KCYS 180608 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 1208 AM MDT Wed Mar 18 2026 ...Multi Day Red Flag Warning... .Critical fire conditions are expected through the week, with poor overnight humidity recoveries and no precipitation. NEZ434>437-WYZ417>419-430>433-190000- /O.CON.KCYS.FW.W.0009.260318T1600Z-260322T0200Z/ 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- North Laramie Range and Adjacent High Plains- Laramie Foothills and High Plains-Laramie East High Plains- Bordeaux/Chugwater/Wheatland-Goshen/Middle- Lower North Platte River Basin- 1208 AM MDT Wed Mar 18 2026 ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 8 PM MDT SATURDAY FOR LOW HUMIDITY, GUSTY WINDS, AND POOR OVERNIGHT HUMIDITY RECOVERIES FOR FIRE WEATHER ZONES 417, 418, 419, 430, 431, 432, 433, 434, 435, 436, AND 437... * AFFECTED AREA...Fire weather zone 417, 418, 419, 430, 431, 432, 433, 434, 435, 436, and 437. * WIND...Sustained winds 20 to 30 mph, gusting up to 35 mph. * HUMIDITY...10 to 15 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * ADDITIONAL DETAILS...Poor overnight humidity recoveries are expected for the duration of the Red Flag Warning. Well above average temperatures are also expected which will contribute considerably to the dry 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. && $$ Action: Continued Issued At: 2026-03-18 11:38:19 927 WWUS85 KCYS 181637 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 1037 AM MDT Wed Mar 18 2026 ...Multi Day Red Flag Warning... .Critical fire conditions are expected through the week, with poor overnight humidity recoveries and no precipitation. NEZ434>437-WYZ417>419-430>433-191200- /O.CON.KCYS.FW.W.0009.000000T0000Z-260322T0200Z/ Pine Ridge/Nebraska National Forest- Box Butte/South Sioux/Niobrara River- Lower North Platte River Basin/Scottsbluff National Monument- Lodgepole Creek/Southern Nebraska Panhandle- Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland- Middle North Platte River Basin/Niobrara and Converse High Plains- North Laramie Range and Adjacent High Plains- Laramie Foothills and High Plains-Laramie East High Plains- Bordeaux/Chugwater/Wheatland-Goshen/Middle- Lower North Platte River Basin- 1037 AM MDT Wed Mar 18 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT SATURDAY FOR LOW HUMIDITY, GUSTY WINDS, AND POOR OVERNIGHT HUMIDITY RECOVERIES FOR FIRE WEATHER ZONES 417, 418, 419, 430, 431, 432, 433, 434, 435, 436, AND 437... * AFFECTED AREA...Fire weather zone 417, 418, 419, 430, 431, 432, 433, 434, 435, 436, and 437. * WIND...Sustained winds 20 to 30 mph, gusting up to 35 mph. * HUMIDITY...8 to 13 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * ADDITIONAL DETAILS...Poor overnight humidity recoveries are expected for the duration of the Red Flag Warning. Well above average temperatures are also expected which will contribute considerably to the dry conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ Action: Continued Issued At: 2026-03-19 02:54:45 951 WWUS85 KCYS 190754 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 154 AM MDT Thu Mar 19 2026 ...Multi Day Red Flag Warning... .Critical fire conditions are expected through the week, with poor overnight humidity recoveries and no precipitation. NEZ434>437-WYZ417>419-430>433-192200- /O.CON.KCYS.FW.W.0009.000000T0000Z-260322T0200Z/ 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- North Laramie Range and Adjacent High Plains- Laramie Foothills and High Plains-Laramie East High Plains- Bordeaux/Chugwater/Wheatland-Goshen/Middle- Lower North Platte River Basin- 154 AM MDT Thu Mar 19 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT SATURDAY FOR FIRE WEATHER ZONES 417, 418, 419, 430, 431, 432, 433, 434, 435, 436, AND 437... * AFFECTED AREA...Fire weather zone 417, 418, 419, 430, 431, 432, 433, 434, 435, 436, and 437. * WIND...Sustained winds 20 to 30 mph, gusting up to 35 mph. * HUMIDITY...8 to 13 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * ADDITIONAL DETAILS...Poor overnight humidity recoveries are expected for the duration of the Red Flag Warning. Well above average temperatures are also expected which will contribute considerably to the dry 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. && $$ Action: Continued Issued At: 2026-03-19 12:45:22 788 WWUS85 KCYS 191745 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 1145 AM MDT Thu Mar 19 2026 ...Multi Day Red Flag Warning... .Critical fire conditions are expected through the week, with poor overnight humidity recoveries and no precipitation. WYZ420>423-425-427>429-200145- /O.EXA.KCYS.FW.W.0009.000000T0000Z-260322T0200Z/ North Laramie Valley/Shirley Basin- Ferris/Seminoe/Shirley Mountains-Central and West Carbon- Southwest Carbon County-Upper North Platte River Basin- North Snowy Range Foothills-Southern Laramie Valley- Southern Laramie Range- 1145 AM MDT Thu Mar 19 2026 ...RED FLAG WARNING IN EFFECT UNTIL 8 PM MDT SATURDAY FOR FIRE WEATHER ZONES 420, 421, 422, 423, 425, 427, 428 AND 429... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect until 8 PM MDT Saturday. * AFFECTED AREA...Fire weather zone 420, 421, 422, 423, 425, 427, 428 and 429. * WIND...Sustained winds 20 to 30 mph, gusting up to 40 mph. * HUMIDITY...9 to 12 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * ADDITIONAL DETAILS...Poor overnight humidity recoveries are expected for the duration of the Red Flag Warning. Well above average temperatures are also expected which will contribute considerably to the dry conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ NEZ434>437-WYZ417>419-430>433-200145- /O.CON.KCYS.FW.W.0009.000000T0000Z-260322T0200Z/ 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- North Laramie Range and Adjacent High Plains- Laramie Foothills and High Plains-Laramie East High Plains- Bordeaux/Chugwater/Wheatland-Goshen/Middle- Lower North Platte River Basin- 1145 AM MDT Thu Mar 19 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT SATURDAY FOR FIRE WEATHER ZONES 417, 418, 419, 430, 431, 432, 433, 434, 435, 436, AND 437... * AFFECTED AREA...Fire weather zone 417, 418, 419, 430, 431, 432, 433, 434, 435, 436, and 437. * WIND...Sustained winds 20 to 30 mph, gusting up to 35 mph. * HUMIDITY...7 to 12 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * ADDITIONAL DETAILS...Poor overnight humidity recoveries are expected for the duration of the Red Flag Warning. Well above average temperatures are also expected which will contribute considerably to the dry 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. && $$ Action: Area Extended Issued At: 2026-03-19 12:45:22 788 WWUS85 KCYS 191745 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 1145 AM MDT Thu Mar 19 2026 ...Multi Day Red Flag Warning... .Critical fire conditions are expected through the week, with poor overnight humidity recoveries and no precipitation. WYZ420>423-425-427>429-200145- /O.EXA.KCYS.FW.W.0009.000000T0000Z-260322T0200Z/ North Laramie Valley/Shirley Basin- Ferris/Seminoe/Shirley Mountains-Central and West Carbon- Southwest Carbon County-Upper North Platte River Basin- North Snowy Range Foothills-Southern Laramie Valley- Southern Laramie Range- 1145 AM MDT Thu Mar 19 2026 ...RED FLAG WARNING IN EFFECT UNTIL 8 PM MDT SATURDAY FOR FIRE WEATHER ZONES 420, 421, 422, 423, 425, 427, 428 AND 429... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect until 8 PM MDT Saturday. * AFFECTED AREA...Fire weather zone 420, 421, 422, 423, 425, 427, 428 and 429. * WIND...Sustained winds 20 to 30 mph, gusting up to 40 mph. * HUMIDITY...9 to 12 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * ADDITIONAL DETAILS...Poor overnight humidity recoveries are expected for the duration of the Red Flag Warning. Well above average temperatures are also expected which will contribute considerably to the dry conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ NEZ434>437-WYZ417>419-430>433-200145- /O.CON.KCYS.FW.W.0009.000000T0000Z-260322T0200Z/ 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- North Laramie Range and Adjacent High Plains- Laramie Foothills and High Plains-Laramie East High Plains- Bordeaux/Chugwater/Wheatland-Goshen/Middle- Lower North Platte River Basin- 1145 AM MDT Thu Mar 19 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT SATURDAY FOR FIRE WEATHER ZONES 417, 418, 419, 430, 431, 432, 433, 434, 435, 436, AND 437... * AFFECTED AREA...Fire weather zone 417, 418, 419, 430, 431, 432, 433, 434, 435, 436, and 437. * WIND...Sustained winds 20 to 30 mph, gusting up to 35 mph. * HUMIDITY...7 to 12 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * ADDITIONAL DETAILS...Poor overnight humidity recoveries are expected for the duration of the Red Flag Warning. Well above average temperatures are also expected which will contribute considerably to the dry 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. && $$ Action: Continued Issued At: 2026-03-19 16:35:42 516 WWUS85 KCYS 192135 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 335 PM MDT Thu Mar 19 2026 ...Multi Day Red Flag Warning... .Critical fire conditions are expected through the week, with poor overnight humidity recoveries and no precipitation. NEZ434>437-WYZ417>419-430>433-201200- /O.CON.KCYS.FW.W.0009.000000T0000Z-260322T0200Z/ Pine Ridge/Nebraska National Forest- Box Butte/South Sioux/Niobrara River- Lower North Platte River Basin/Scottsbluff National Monument- Lodgepole Creek/Southern Nebraska Panhandle- Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland- Middle North Platte River Basin/Niobrara and Converse High Plains- North Laramie Range and Adjacent High Plains- Laramie Foothills and High Plains-Laramie East High Plains- Bordeaux/Chugwater/Wheatland-Goshen/Middle- Lower North Platte River Basin- 335 PM MDT Thu Mar 19 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT SATURDAY FOR FIRE WEATHER ZONES 417, 418, 419, 430, 431, 432, 433, 434, 435, 436, AND 437... * AFFECTED AREA...Fire weather zone 417, 418, 419, 430, 431, 432, 433, 434, 435, 436, and 437. * WIND...Sustained winds 20 to 30 mph, gusting up to 35 mph. * HUMIDITY...7 to 12 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * ADDITIONAL DETAILS...Poor overnight humidity recoveries are expected for the duration of the Red Flag Warning. Well above average temperatures are also expected which will contribute considerably to the dry conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ WYZ420>423-425-427>429-201200- /O.CON.KCYS.FW.W.0009.000000T0000Z-260322T0200Z/ North Laramie Valley/Shirley Basin- Ferris/Seminoe/Shirley Mountains-Central and West Carbon- Southwest Carbon County-Upper North Platte River Basin- North Snowy Range Foothills-Southern Laramie Valley- Southern Laramie Range- 335 PM MDT Thu Mar 19 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT SATURDAY FOR FIRE WEATHER ZONES 420, 421, 422, 423, 425, 427, 428 AND 429... * AFFECTED AREA...Fire weather zone 420, 421, 422, 423, 425, 427,428 and 429. * WIND...Sustained winds 20 to 30 mph, gusting up to 40 mph. * HUMIDITY...9 to 12 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * ADDITIONAL DETAILS...Poor overnight humidity recoveries are expected for the duration of the Red Flag Warning. Well above average temperatures are also expected which will contribute considerably to the dry 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. && $$ Action: Continued Issued At: 2026-03-19 16:35:42 516 WWUS85 KCYS 192135 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 335 PM MDT Thu Mar 19 2026 ...Multi Day Red Flag Warning... .Critical fire conditions are expected through the week, with poor overnight humidity recoveries and no precipitation. NEZ434>437-WYZ417>419-430>433-201200- /O.CON.KCYS.FW.W.0009.000000T0000Z-260322T0200Z/ Pine Ridge/Nebraska National Forest- Box Butte/South Sioux/Niobrara River- Lower North Platte River Basin/Scottsbluff National Monument- Lodgepole Creek/Southern Nebraska Panhandle- Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland- Middle North Platte River Basin/Niobrara and Converse High Plains- North Laramie Range and Adjacent High Plains- Laramie Foothills and High Plains-Laramie East High Plains- Bordeaux/Chugwater/Wheatland-Goshen/Middle- Lower North Platte River Basin- 335 PM MDT Thu Mar 19 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT SATURDAY FOR FIRE WEATHER ZONES 417, 418, 419, 430, 431, 432, 433, 434, 435, 436, AND 437... * AFFECTED AREA...Fire weather zone 417, 418, 419, 430, 431, 432, 433, 434, 435, 436, and 437. * WIND...Sustained winds 20 to 30 mph, gusting up to 35 mph. * HUMIDITY...7 to 12 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * ADDITIONAL DETAILS...Poor overnight humidity recoveries are expected for the duration of the Red Flag Warning. Well above average temperatures are also expected which will contribute considerably to the dry conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ WYZ420>423-425-427>429-201200- /O.CON.KCYS.FW.W.0009.000000T0000Z-260322T0200Z/ North Laramie Valley/Shirley Basin- Ferris/Seminoe/Shirley Mountains-Central and West Carbon- Southwest Carbon County-Upper North Platte River Basin- North Snowy Range Foothills-Southern Laramie Valley- Southern Laramie Range- 335 PM MDT Thu Mar 19 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT SATURDAY FOR FIRE WEATHER ZONES 420, 421, 422, 423, 425, 427, 428 AND 429... * AFFECTED AREA...Fire weather zone 420, 421, 422, 423, 425, 427,428 and 429. * WIND...Sustained winds 20 to 30 mph, gusting up to 40 mph. * HUMIDITY...9 to 12 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * ADDITIONAL DETAILS...Poor overnight humidity recoveries are expected for the duration of the Red Flag Warning. Well above average temperatures are also expected which will contribute considerably to the dry 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. && $$ Action: Continued Issued At: 2026-03-20 02:13:15 393 WWUS85 KCYS 200712 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 112 AM MDT Fri Mar 20 2026 ...Multi Day Red Flag Warning... .Critical fire conditions are expected through the week, with poor overnight humidity recoveries and no precipitation. NEZ434>437-WYZ417>419-430>433-202200- /O.CON.KCYS.FW.W.0009.000000T0000Z-260322T0200Z/ Pine Ridge/Nebraska National Forest- Box Butte/South Sioux/Niobrara River- Lower North Platte River Basin/Scottsbluff National Monument- Lodgepole Creek/Southern Nebraska Panhandle- Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland- Middle North Platte River Basin/Niobrara and Converse High Plains- North Laramie Range and Adjacent High Plains- Laramie Foothills and High Plains-Laramie East High Plains- Bordeaux/Chugwater/Wheatland-Goshen/Middle- Lower North Platte River Basin- 112 AM MDT Fri Mar 20 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT SATURDAY FOR FIRE WEATHER ZONES 417, 418, 419, 430, 431, 432, 433, 434, 435, 436, AND 437... * AFFECTED AREA...Fire weather zone 417, 418, 419, 430, 431, 432, 433, 434, 435, 436, and 437. * WIND...Sustained winds 15 to 25 mph, gusting up to 35 mph. * HUMIDITY...7 to 12 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * ADDITIONAL DETAILS...Poor overnight humidity recoveries are expected for the duration of the Red Flag Warning. Well above average temperatures are also expected which will contribute considerably to the dry conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ WYZ420>423-425-427>429-202200- /O.CON.KCYS.FW.W.0009.000000T0000Z-260322T0200Z/ North Laramie Valley/Shirley Basin- Ferris/Seminoe/Shirley Mountains-Central and West Carbon- Southwest Carbon County-Upper North Platte River Basin- North Snowy Range Foothills-Southern Laramie Valley- Southern Laramie Range- 112 AM MDT Fri Mar 20 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT SATURDAY FOR FIRE WEATHER ZONES 420, 421, 422, 423, 425, 427, 428 AND 429... * AFFECTED AREA...Fire weather zone 420, 421, 422, 423, 425, 427,428 and 429. * WIND...Sustained winds 20 to 30 mph, gusting up to 40 mph. * HUMIDITY...9 to 12 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * ADDITIONAL DETAILS...Poor overnight humidity recoveries are expected for the duration of the Red Flag Warning. Well above average temperatures are also expected which will contribute considerably to the dry 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. && $$ Action: Continued Issued At: 2026-03-20 02:13:15 393 WWUS85 KCYS 200712 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 112 AM MDT Fri Mar 20 2026 ...Multi Day Red Flag Warning... .Critical fire conditions are expected through the week, with poor overnight humidity recoveries and no precipitation. NEZ434>437-WYZ417>419-430>433-202200- /O.CON.KCYS.FW.W.0009.000000T0000Z-260322T0200Z/ Pine Ridge/Nebraska National Forest- Box Butte/South Sioux/Niobrara River- Lower North Platte River Basin/Scottsbluff National Monument- Lodgepole Creek/Southern Nebraska Panhandle- Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland- Middle North Platte River Basin/Niobrara and Converse High Plains- North Laramie Range and Adjacent High Plains- Laramie Foothills and High Plains-Laramie East High Plains- Bordeaux/Chugwater/Wheatland-Goshen/Middle- Lower North Platte River Basin- 112 AM MDT Fri Mar 20 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT SATURDAY FOR FIRE WEATHER ZONES 417, 418, 419, 430, 431, 432, 433, 434, 435, 436, AND 437... * AFFECTED AREA...Fire weather zone 417, 418, 419, 430, 431, 432, 433, 434, 435, 436, and 437. * WIND...Sustained winds 15 to 25 mph, gusting up to 35 mph. * HUMIDITY...7 to 12 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * ADDITIONAL DETAILS...Poor overnight humidity recoveries are expected for the duration of the Red Flag Warning. Well above average temperatures are also expected which will contribute considerably to the dry conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ WYZ420>423-425-427>429-202200- /O.CON.KCYS.FW.W.0009.000000T0000Z-260322T0200Z/ North Laramie Valley/Shirley Basin- Ferris/Seminoe/Shirley Mountains-Central and West Carbon- Southwest Carbon County-Upper North Platte River Basin- North Snowy Range Foothills-Southern Laramie Valley- Southern Laramie Range- 112 AM MDT Fri Mar 20 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT SATURDAY FOR FIRE WEATHER ZONES 420, 421, 422, 423, 425, 427, 428 AND 429... * AFFECTED AREA...Fire weather zone 420, 421, 422, 423, 425, 427,428 and 429. * WIND...Sustained winds 20 to 30 mph, gusting up to 40 mph. * HUMIDITY...9 to 12 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * ADDITIONAL DETAILS...Poor overnight humidity recoveries are expected for the duration of the Red Flag Warning. Well above average temperatures are also expected which will contribute considerably to the dry 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. && $$ Action: Continued Issued At: 2026-03-20 12:48:50 252 WWUS85 KCYS 201748 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 1148 AM MDT Fri Mar 20 2026 ...Multi Day Red Flag Warning... .Critical fire conditions are expected through the week, with poor overnight humidity recoveries and no precipitation. NEZ434>437-WYZ417>419-430>433-211200- /O.CON.KCYS.FW.W.0009.000000T0000Z-260322T0200Z/ Pine Ridge/Nebraska National Forest- Box Butte/South Sioux/Niobrara River- Lower North Platte River Basin/Scottsbluff National Monument- Lodgepole Creek/Southern Nebraska Panhandle- Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland- Middle North Platte River Basin/Niobrara and Converse High Plains- North Laramie Range and Adjacent High Plains- Laramie Foothills and High Plains-Laramie East High Plains- Bordeaux/Chugwater/Wheatland-Goshen/Middle- Lower North Platte River Basin- 1148 AM MDT Fri Mar 20 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT SATURDAY FOR BREEZY WINDS, LOW RH, AND WARM TEMPERATURES FOR FIRE WEATHER ZONES 417, 418, 419, 430, 431, 432, 433, 434, 435, 436, AND 437... * AFFECTED AREA...Fire weather zone 417, 418, 419, 430, 431, 432, 433, 434, 435, 436, and 437. * WIND...Sustained winds 15 to 25 mph, gusting up to 35 mph. * HUMIDITY...7 to 12 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * ADDITIONAL DETAILS...Poor overnight humidity recoveries are expected for the duration of the Red Flag Warning. Well above average temperatures are also expected which will contribute considerably to the dry conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ WYZ420>423-425-427>429-211200- /O.CON.KCYS.FW.W.0009.000000T0000Z-260322T0200Z/ North Laramie Valley/Shirley Basin- Ferris/Seminoe/Shirley Mountains-Central and West Carbon- Southwest Carbon County-Upper North Platte River Basin- North Snowy Range Foothills-Southern Laramie Valley- Southern Laramie Range- 1148 AM MDT Fri Mar 20 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT SATURDAY FOR BREEZY WINDS, LOW RH, AND WARM TEMPERATURES FOR FIRE WEATHER ZONES 420, 421, 422, 423, 425, 427, 428, AND 429... * AFFECTED AREA...Fire weather zone 420, 421, 422, 423, 425, 427,428 and 429. * WIND...Sustained winds 20 to 30 mph, gusting up to 40 mph. * HUMIDITY...9 to 12 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * ADDITIONAL DETAILS...Poor overnight humidity recoveries are expected for the duration of the Red Flag Warning. Well above average temperatures are also expected which will contribute considerably to the dry 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. && $$ Action: Continued Issued At: 2026-03-20 12:48:50 252 WWUS85 KCYS 201748 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 1148 AM MDT Fri Mar 20 2026 ...Multi Day Red Flag Warning... .Critical fire conditions are expected through the week, with poor overnight humidity recoveries and no precipitation. NEZ434>437-WYZ417>419-430>433-211200- /O.CON.KCYS.FW.W.0009.000000T0000Z-260322T0200Z/ Pine Ridge/Nebraska National Forest- Box Butte/South Sioux/Niobrara River- Lower North Platte River Basin/Scottsbluff National Monument- Lodgepole Creek/Southern Nebraska Panhandle- Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland- Middle North Platte River Basin/Niobrara and Converse High Plains- North Laramie Range and Adjacent High Plains- Laramie Foothills and High Plains-Laramie East High Plains- Bordeaux/Chugwater/Wheatland-Goshen/Middle- Lower North Platte River Basin- 1148 AM MDT Fri Mar 20 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT SATURDAY FOR BREEZY WINDS, LOW RH, AND WARM TEMPERATURES FOR FIRE WEATHER ZONES 417, 418, 419, 430, 431, 432, 433, 434, 435, 436, AND 437... * AFFECTED AREA...Fire weather zone 417, 418, 419, 430, 431, 432, 433, 434, 435, 436, and 437. * WIND...Sustained winds 15 to 25 mph, gusting up to 35 mph. * HUMIDITY...7 to 12 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * ADDITIONAL DETAILS...Poor overnight humidity recoveries are expected for the duration of the Red Flag Warning. Well above average temperatures are also expected which will contribute considerably to the dry conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ WYZ420>423-425-427>429-211200- /O.CON.KCYS.FW.W.0009.000000T0000Z-260322T0200Z/ North Laramie Valley/Shirley Basin- Ferris/Seminoe/Shirley Mountains-Central and West Carbon- Southwest Carbon County-Upper North Platte River Basin- North Snowy Range Foothills-Southern Laramie Valley- Southern Laramie Range- 1148 AM MDT Fri Mar 20 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT SATURDAY FOR BREEZY WINDS, LOW RH, AND WARM TEMPERATURES FOR FIRE WEATHER ZONES 420, 421, 422, 423, 425, 427, 428, AND 429... * AFFECTED AREA...Fire weather zone 420, 421, 422, 423, 425, 427,428 and 429. * WIND...Sustained winds 20 to 30 mph, gusting up to 40 mph. * HUMIDITY...9 to 12 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * ADDITIONAL DETAILS...Poor overnight humidity recoveries are expected for the duration of the Red Flag Warning. Well above average temperatures are also expected which will contribute considerably to the dry 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. && $$ Action: Continued Issued At: 2026-03-21 02:31:17 404 WWUS85 KCYS 210730 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 130 AM MDT Sat Mar 21 2026 NEZ434>437-WYZ417>419-430>433-212130- /O.CON.KCYS.FW.W.0009.000000T0000Z-260322T0200Z/ Pine Ridge/Nebraska National Forest- Box Butte/South Sioux/Niobrara River- Lower North Platte River Basin/Scottsbluff National Monument- Lodgepole Creek/Southern Nebraska Panhandle- Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland- Middle North Platte River Basin/Niobrara and Converse High Plains- North Laramie Range and Adjacent High Plains- Laramie Foothills and High Plains-Laramie East High Plains- Bordeaux/Chugwater/Wheatland-Goshen/Middle- Lower North Platte River Basin- 130 AM MDT Sat Mar 21 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR FIRE WEATHER ZONES 417, 418, 419, 430, 431, 432, 433, 434, 435, 436, AND 437... * AFFECTED AREA...Fire weather zone 417, 418, 419, 430, 431, 432, 433, 434, 435, 436, and 437. * WIND...Sustained winds 15 to 25 mph, gusting up to 35 mph. * HUMIDITY...7 to 12 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * ADDITIONAL DETAILS...Poor overnight humidity recoveries are expected early Saturday morning. Well above average temperatures are also expected which will contribute considerably to the dry conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ WYZ420>423-425-427>429-212130- /O.CON.KCYS.FW.W.0009.000000T0000Z-260322T0200Z/ North Laramie Valley/Shirley Basin- Ferris/Seminoe/Shirley Mountains-Central and West Carbon- Southwest Carbon County-Upper North Platte River Basin- North Snowy Range Foothills-Southern Laramie Valley- Southern Laramie Range- 130 AM MDT Sat Mar 21 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR FIRE WEATHER ZONES 420, 421, 422, 423, 425, 427, 428, AND 429... * AFFECTED AREA...Fire weather zone 420, 421, 422, 423, 425, 427,428 and 429. * WIND...Sustained winds 20 to 30 mph, gusting up to 40 mph. * HUMIDITY...9 to 12 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * ADDITIONAL DETAILS...Poor overnight humidity recoveries are expected early Saturday morning. Well above average temperatures are also expected which will contribute considerably to the dry 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. && $$ Action: Continued Issued At: 2026-03-21 02:31:17 404 WWUS85 KCYS 210730 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 130 AM MDT Sat Mar 21 2026 NEZ434>437-WYZ417>419-430>433-212130- /O.CON.KCYS.FW.W.0009.000000T0000Z-260322T0200Z/ Pine Ridge/Nebraska National Forest- Box Butte/South Sioux/Niobrara River- Lower North Platte River Basin/Scottsbluff National Monument- Lodgepole Creek/Southern Nebraska Panhandle- Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland- Middle North Platte River Basin/Niobrara and Converse High Plains- North Laramie Range and Adjacent High Plains- Laramie Foothills and High Plains-Laramie East High Plains- Bordeaux/Chugwater/Wheatland-Goshen/Middle- Lower North Platte River Basin- 130 AM MDT Sat Mar 21 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR FIRE WEATHER ZONES 417, 418, 419, 430, 431, 432, 433, 434, 435, 436, AND 437... * AFFECTED AREA...Fire weather zone 417, 418, 419, 430, 431, 432, 433, 434, 435, 436, and 437. * WIND...Sustained winds 15 to 25 mph, gusting up to 35 mph. * HUMIDITY...7 to 12 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * ADDITIONAL DETAILS...Poor overnight humidity recoveries are expected early Saturday morning. Well above average temperatures are also expected which will contribute considerably to the dry conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ WYZ420>423-425-427>429-212130- /O.CON.KCYS.FW.W.0009.000000T0000Z-260322T0200Z/ North Laramie Valley/Shirley Basin- Ferris/Seminoe/Shirley Mountains-Central and West Carbon- Southwest Carbon County-Upper North Platte River Basin- North Snowy Range Foothills-Southern Laramie Valley- Southern Laramie Range- 130 AM MDT Sat Mar 21 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR FIRE WEATHER ZONES 420, 421, 422, 423, 425, 427, 428, AND 429... * AFFECTED AREA...Fire weather zone 420, 421, 422, 423, 425, 427,428 and 429. * WIND...Sustained winds 20 to 30 mph, gusting up to 40 mph. * HUMIDITY...9 to 12 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * ADDITIONAL DETAILS...Poor overnight humidity recoveries are expected early Saturday morning. Well above average temperatures are also expected which will contribute considerably to the dry 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. && $$ Action: Continued Issued At: 2026-03-21 11:43:05 345 WWUS85 KCYS 211642 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 1042 AM MDT Sat Mar 21 2026 NEZ434>437-WYZ417>419-430>433-220200- /O.CON.KCYS.FW.W.0009.000000T0000Z-260322T0200Z/ Pine Ridge/Nebraska National Forest- Box Butte/South Sioux/Niobrara River- Lower North Platte River Basin/Scottsbluff National Monument- Lodgepole Creek/Southern Nebraska Panhandle- Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland- Middle North Platte River Basin/Niobrara and Converse High Plains- North Laramie Range and Adjacent High Plains- Laramie Foothills and High Plains-Laramie East High Plains- Bordeaux/Chugwater/Wheatland-Goshen/Middle- Lower North Platte River Basin- 1042 AM MDT Sat Mar 21 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR FIRE WEATHER ZONES 417, 418, 419, 430, 431, 432, 433, 434, 435, 436, AND 437... * AFFECTED AREA...Fire weather zone 417, 418, 419, 430, 431, 432, 433, 434, 435, 436, and 437. * WIND...Sustained winds 15 to 25 mph, gusting up to 35 mph. * HUMIDITY...5 to 10 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * ADDITIONAL DETAILS...Poor overnight humidity recoveries are expected early Saturday morning. Well above average temperatures are also expected which will contribute considerably to the dry conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ WYZ420>423-425-427>429-220200- /O.CON.KCYS.FW.W.0009.000000T0000Z-260322T0200Z/ North Laramie Valley/Shirley Basin- Ferris/Seminoe/Shirley Mountains-Central and West Carbon- Southwest Carbon County-Upper North Platte River Basin- North Snowy Range Foothills-Southern Laramie Valley- Southern Laramie Range- 1042 AM MDT Sat Mar 21 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR FIRE WEATHER ZONES 420, 421, 422, 423, 425, 427, 428, AND 429... * AFFECTED AREA...Fire weather zone 420, 421, 422, 423, 425, 427,428 and 429. * WIND...Sustained winds 20 to 30 mph, gusting up to 40 mph. * HUMIDITY...8 to 11 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * ADDITIONAL DETAILS...Poor overnight humidity recoveries are expected early Saturday morning. Well above average temperatures are also expected which will contribute considerably to the dry 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. && $$ Action: Continued Issued At: 2026-03-21 11:43:05 345 WWUS85 KCYS 211642 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 1042 AM MDT Sat Mar 21 2026 NEZ434>437-WYZ417>419-430>433-220200- /O.CON.KCYS.FW.W.0009.000000T0000Z-260322T0200Z/ Pine Ridge/Nebraska National Forest- Box Butte/South Sioux/Niobrara River- Lower North Platte River Basin/Scottsbluff National Monument- Lodgepole Creek/Southern Nebraska Panhandle- Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland- Middle North Platte River Basin/Niobrara and Converse High Plains- North Laramie Range and Adjacent High Plains- Laramie Foothills and High Plains-Laramie East High Plains- Bordeaux/Chugwater/Wheatland-Goshen/Middle- Lower North Platte River Basin- 1042 AM MDT Sat Mar 21 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR FIRE WEATHER ZONES 417, 418, 419, 430, 431, 432, 433, 434, 435, 436, AND 437... * AFFECTED AREA...Fire weather zone 417, 418, 419, 430, 431, 432, 433, 434, 435, 436, and 437. * WIND...Sustained winds 15 to 25 mph, gusting up to 35 mph. * HUMIDITY...5 to 10 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * ADDITIONAL DETAILS...Poor overnight humidity recoveries are expected early Saturday morning. Well above average temperatures are also expected which will contribute considerably to the dry conditions. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ WYZ420>423-425-427>429-220200- /O.CON.KCYS.FW.W.0009.000000T0000Z-260322T0200Z/ North Laramie Valley/Shirley Basin- Ferris/Seminoe/Shirley Mountains-Central and West Carbon- Southwest Carbon County-Upper North Platte River Basin- North Snowy Range Foothills-Southern Laramie Valley- Southern Laramie Range- 1042 AM MDT Sat Mar 21 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR FIRE WEATHER ZONES 420, 421, 422, 423, 425, 427, 428, AND 429... * AFFECTED AREA...Fire weather zone 420, 421, 422, 423, 425, 427,428 and 429. * WIND...Sustained winds 20 to 30 mph, gusting up to 40 mph. * HUMIDITY...8 to 11 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * ADDITIONAL DETAILS...Poor overnight humidity recoveries are expected early Saturday morning. Well above average temperatures are also expected which will contribute considerably to the dry 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. && $$ Action: Expired Issued At: 2026-03-21 20:38:07 187 WWUS85 KCYS 220137 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 737 PM MDT Sat Mar 21 2026 NEZ434>437-WYZ417>419-430>433-220245- /O.EXP.KCYS.FW.W.0009.000000T0000Z-260322T0200Z/ Pine Ridge/Nebraska National Forest- Box Butte/South Sioux/Niobrara River- Lower North Platte River Basin/Scottsbluff National Monument- Lodgepole Creek/Southern Nebraska Panhandle- Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland- Middle North Platte River Basin/Niobrara and Converse High Plains- North Laramie Range and Adjacent High Plains- Laramie Foothills and High Plains-Laramie East High Plains- Bordeaux/Chugwater/Wheatland-Goshen/Middle- Lower North Platte River Basin- 737 PM MDT Sat Mar 21 2026 ...RED FLAG WARNING WILL EXPIRE AT 8 PM MDT THIS EVENING FOR FIRE WEATHER ZONES 417, 418, 419, 430, 431, 432, 433, 434, 435, 436, AND 437... Relative humidites continue to increase this evening along with winds decreasing. Therefore, the Red Flag Warnings will be allowed to expire. $$ WYZ420>423-425-427>429-220245- /O.EXP.KCYS.FW.W.0009.000000T0000Z-260322T0200Z/ North Laramie Valley/Shirley Basin- Ferris/Seminoe/Shirley Mountains-Central and West Carbon- Southwest Carbon County-Upper North Platte River Basin- North Snowy Range Foothills-Southern Laramie Valley- Southern Laramie Range- 737 PM MDT Sat Mar 21 2026 ...RED FLAG WARNING WILL EXPIRE AT 8 PM MDT THIS EVENING FOR FIRE WEATHER ZONES 420, 421, 422, 423, 425, 427, 428, AND 429... Relative humidites continue to increase this evening along with winds decreasing. Therefore, the Red Flag Warnings will be allowed to expire. $$ Action: Expired Issued At: 2026-03-21 20:38:07 187 WWUS85 KCYS 220137 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 737 PM MDT Sat Mar 21 2026 NEZ434>437-WYZ417>419-430>433-220245- /O.EXP.KCYS.FW.W.0009.000000T0000Z-260322T0200Z/ Pine Ridge/Nebraska National Forest- Box Butte/South Sioux/Niobrara River- Lower North Platte River Basin/Scottsbluff National Monument- Lodgepole Creek/Southern Nebraska Panhandle- Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland- Middle North Platte River Basin/Niobrara and Converse High Plains- North Laramie Range and Adjacent High Plains- Laramie Foothills and High Plains-Laramie East High Plains- Bordeaux/Chugwater/Wheatland-Goshen/Middle- Lower North Platte River Basin- 737 PM MDT Sat Mar 21 2026 ...RED FLAG WARNING WILL EXPIRE AT 8 PM MDT THIS EVENING FOR FIRE WEATHER ZONES 417, 418, 419, 430, 431, 432, 433, 434, 435, 436, AND 437... Relative humidites continue to increase this evening along with winds decreasing. Therefore, the Red Flag Warnings will be allowed to expire. $$ WYZ420>423-425-427>429-220245- /O.EXP.KCYS.FW.W.0009.000000T0000Z-260322T0200Z/ North Laramie Valley/Shirley Basin- Ferris/Seminoe/Shirley Mountains-Central and West Carbon- Southwest Carbon County-Upper North Platte River Basin- North Snowy Range Foothills-Southern Laramie Valley- Southern Laramie Range- 737 PM MDT Sat Mar 21 2026 ...RED FLAG WARNING WILL EXPIRE AT 8 PM MDT THIS EVENING FOR FIRE WEATHER ZONES 420, 421, 422, 423, 425, 427, 428, AND 429... Relative humidites continue to increase this evening along with winds decreasing. Therefore, the Red Flag Warnings will be allowed to expire. $$ | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||