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Home Return to list Fire Weather Warning 0015 Issued by the Cheyenne Forecast Office
Action: New Issued At: 2025-07-26 03:02:58 755 WWUS85 KCYS 260802 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 202 AM MDT Sat Jul 26 2025 WYZ421>423-270000- /O.UPG.KCYS.FW.A.0009.250726T1800Z-250727T0200Z/ /O.NEW.KCYS.FW.W.0015.250726T1800Z-250727T0200Z/ Ferris/Seminoe/Shirley Mountains-Central and West Carbon- Southwest Carbon County- 202 AM MDT Sat Jul 26 2025 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 421, 422, AND 423... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from noon today to 8 PM MDT this evening. The Fire Weather Watch is no longer in effect. * WIND...Gusts over 30 mph possible * HUMIDITY...5 to 10% * 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. && $$ WYZ425-427-270000- /O.NEW.KCYS.FW.W.0015.250726T1800Z-250727T0200Z/ Upper North Platte River Basin-North Snowy Range Foothills- 202 AM MDT Sat Jul 26 2025 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 425 AND 427... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from noon today to 8 PM MDT this evening. * AFFECTED AREA...Fire weather zone 425.Fire weather zone 427. * WIND...Gusts over 30 mph possible * HUMIDITY...5 to 10% * IMPACTS...any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ Action: New Issued At: 2025-07-26 03:02:58 755 WWUS85 KCYS 260802 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 202 AM MDT Sat Jul 26 2025 WYZ421>423-270000- /O.UPG.KCYS.FW.A.0009.250726T1800Z-250727T0200Z/ /O.NEW.KCYS.FW.W.0015.250726T1800Z-250727T0200Z/ Ferris/Seminoe/Shirley Mountains-Central and West Carbon- Southwest Carbon County- 202 AM MDT Sat Jul 26 2025 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 421, 422, AND 423... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from noon today to 8 PM MDT this evening. The Fire Weather Watch is no longer in effect. * WIND...Gusts over 30 mph possible * HUMIDITY...5 to 10% * 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. && $$ WYZ425-427-270000- /O.NEW.KCYS.FW.W.0015.250726T1800Z-250727T0200Z/ Upper North Platte River Basin-North Snowy Range Foothills- 202 AM MDT Sat Jul 26 2025 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 425 AND 427... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from noon today to 8 PM MDT this evening. * AFFECTED AREA...Fire weather zone 425.Fire weather zone 427. * WIND...Gusts over 30 mph possible * HUMIDITY...5 to 10% * IMPACTS...any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ Action: Continued Issued At: 2025-07-26 12:55:42 131 WWUS85 KCYS 261755 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 1155 AM MDT Sat Jul 26 2025 ...RED FLAG WARNING EXPANDED TO FIRE WEATHER ZONES 418, 420, AND 428... WYZ418-420-428-270200- /O.EXA.KCYS.FW.W.0015.250726T1800Z-250727T0200Z/ Middle North Platte River Basin/Niobrara and Converse High Plains- North Laramie Valley/Shirley Basin-Southern Laramie Valley- 1155 AM MDT Sat Jul 26 2025 ...RED FLAG WARNING IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 418, 420, AND 428... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect until 8 PM MDT this evening. * AFFECTED AREA...Fire weather zones 418, 420, and 428. * WIND...Southwest winds 10 to 20 mph with gusts up to 30 mph. * HUMIDITY...10 to 13 percent * 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. && $$ WYZ421>423-425-427-270200- /O.CON.KCYS.FW.W.0015.250726T1800Z-250727T0200Z/ Ferris/Seminoe/Shirley Mountains-Central and West Carbon- Southwest Carbon County-Upper North Platte River Basin- North Snowy Range Foothills- 1155 AM MDT Sat Jul 26 2025 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 421, 422, 423, 425, AND 427... * WIND...Southwest winds 15 to 25 mph with gusts up to 35 mph. * HUMIDITY...8 to 12 percent * IMPACTS...any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ Action: Area Extended Issued At: 2025-07-26 12:55:42 131 WWUS85 KCYS 261755 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 1155 AM MDT Sat Jul 26 2025 ...RED FLAG WARNING EXPANDED TO FIRE WEATHER ZONES 418, 420, AND 428... WYZ418-420-428-270200- /O.EXA.KCYS.FW.W.0015.250726T1800Z-250727T0200Z/ Middle North Platte River Basin/Niobrara and Converse High Plains- North Laramie Valley/Shirley Basin-Southern Laramie Valley- 1155 AM MDT Sat Jul 26 2025 ...RED FLAG WARNING IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 418, 420, AND 428... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect until 8 PM MDT this evening. * AFFECTED AREA...Fire weather zones 418, 420, and 428. * WIND...Southwest winds 10 to 20 mph with gusts up to 30 mph. * HUMIDITY...10 to 13 percent * 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. && $$ WYZ421>423-425-427-270200- /O.CON.KCYS.FW.W.0015.250726T1800Z-250727T0200Z/ Ferris/Seminoe/Shirley Mountains-Central and West Carbon- Southwest Carbon County-Upper North Platte River Basin- North Snowy Range Foothills- 1155 AM MDT Sat Jul 26 2025 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 421, 422, 423, 425, AND 427... * WIND...Southwest winds 15 to 25 mph with gusts up to 35 mph. * HUMIDITY...8 to 12 percent * IMPACTS...any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ Action: Expired Issued At: 2025-07-26 21:18:55 561 WWUS85 KCYS 270218 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 818 PM MDT Sat Jul 26 2025 WYZ418-420>423-425-427-428-270330- /O.EXP.KCYS.FW.W.0015.000000T0000Z-250727T0200Z/ Middle North Platte River Basin/Niobrara and Converse High Plains- 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- 818 PM MDT Sat Jul 26 2025 ...RED FLAG WARNING HAS EXPIRED FOR FOR FIRE WEATHER ZONES 418, 420, 421, 422, 423, 425, 427, AND 428... Winds have decreased this evening, though relative humidity values remain below critical thresholds. With the lower wind speeds, rapid fire spread is less likely, so the Red Flag Warning has expired. Relative humidity will improve through the overnight hours. Critical fire weather conditions are likely again for portions of the area tomorrow afternoon. $$ | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||