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Home Return to list Fire Weather Warning 0022 Issued by the Cheyenne Forecast Office
Action: New Issued At: 2025-12-18 11:49:17 838 WWUS85 KCYS 181748 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 1048 AM MST Thu Dec 18 2025 ...RED FLAG WARNING IN EFFECT THIS MORNING AND AFTERNOON FOR PORTIONS OF SOUTHEAST WYOMING AND THE SOUTHERN NEBRASKA PANHANDLE... ...RED FLAG WARNING NOW IN EFFECT ON FRIDAY FOR MUCH OF THE HIGH PLAINS... NEZ437-WYZ430-431-191200- /O.UPG.KCYS.FW.A.0013.251219T1700Z-251220T0600Z/ /O.NEW.KCYS.FW.W.0022.251219T1700Z-251220T0600Z/ /O.CON.KCYS.FW.W.0021.000000T0000Z-251219T0000Z/ Lodgepole Creek/Southern Nebraska Panhandle- Laramie Foothills and High Plains-Laramie East High Plains- 1048 AM MST Thu Dec 18 2025 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON FOR LOW RH AND STRONG WINDS FOR FIRE WEATHER ZONES 430, 431, AND 437... ...RED FLAG WARNING IN EFFECT FROM 10 AM TO 11 PM MST FRIDAY FOR GUSTY WINDS AND LOW HUMIDITY... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from 10 AM to 11 PM MST Friday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Fire weather zones 430, 431 and 437. * WIND...For today - Gusts 40 to 60 mph. For tomorrow - Gusts 50 to 70 mph. * HUMIDITY...For today - RH values of 20 to 25%. For tomorrow - RH values of 15 to 20%. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. Although conditions will be borderline, a lack of significant precipitation combined with the high winds in the region will create a critical fire weather environment. 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. && $$ NEZ436-WYZ432-433-191200- /O.UPG.KCYS.FW.A.0013.251219T1700Z-251220T0600Z/ /O.NEW.KCYS.FW.W.0022.251219T1700Z-251220T0600Z/ Lower North Platte River Basin/Scottsbluff National Monument- Bordeaux/Chugwater/Wheatland-Goshen/Middle- Lower North Platte River Basin- 1048 AM MST Thu Dec 18 2025 ...RED FLAG WARNING IN EFFECT FROM 10 AM TO 11 PM MST FRIDAY FOR GUSTY WINDS AND LOW HUMIDITY.... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from 10 AM to 11 PM MST Friday. The Fire Weather Watch is no longer in effect. * WIND...Gusts 50 to 75 mph. * HUMIDITY...RH values of 15 to 20%. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. Although conditions will be borderline, a lack of significant precipitation combined with the high winds in the region will create a critical fire weather environment. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ NEZ434-435-WYZ417-418-191200- /O.NEW.KCYS.FW.W.0022.251219T1700Z-251220T0600Z/ 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- 1048 AM MST Thu Dec 18 2025 ...RED FLAG WARNING IN EFFECT FROM 10 AM TO 11 PM MST FRIDAY FOR GUSTY WINDS AND LOW HUMIDITY... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from 10 AM to 11 PM MST Friday. * AFFECTED AREA...Fire weather zones 434, 435, 417, 418. * WIND...Gusts 40 to 60 mph. * HUMIDITY...RH values 15 to 30%. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. Although conditions will be borderline, a lack of significant precipitation combined with the high winds in the region will create a critical fire weather environment. 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. && $$ Action: New Issued At: 2025-12-18 11:49:17 838 WWUS85 KCYS 181748 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 1048 AM MST Thu Dec 18 2025 ...RED FLAG WARNING IN EFFECT THIS MORNING AND AFTERNOON FOR PORTIONS OF SOUTHEAST WYOMING AND THE SOUTHERN NEBRASKA PANHANDLE... ...RED FLAG WARNING NOW IN EFFECT ON FRIDAY FOR MUCH OF THE HIGH PLAINS... NEZ437-WYZ430-431-191200- /O.UPG.KCYS.FW.A.0013.251219T1700Z-251220T0600Z/ /O.NEW.KCYS.FW.W.0022.251219T1700Z-251220T0600Z/ /O.CON.KCYS.FW.W.0021.000000T0000Z-251219T0000Z/ Lodgepole Creek/Southern Nebraska Panhandle- Laramie Foothills and High Plains-Laramie East High Plains- 1048 AM MST Thu Dec 18 2025 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON FOR LOW RH AND STRONG WINDS FOR FIRE WEATHER ZONES 430, 431, AND 437... ...RED FLAG WARNING IN EFFECT FROM 10 AM TO 11 PM MST FRIDAY FOR GUSTY WINDS AND LOW HUMIDITY... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from 10 AM to 11 PM MST Friday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Fire weather zones 430, 431 and 437. * WIND...For today - Gusts 40 to 60 mph. For tomorrow - Gusts 50 to 70 mph. * HUMIDITY...For today - RH values of 20 to 25%. For tomorrow - RH values of 15 to 20%. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. Although conditions will be borderline, a lack of significant precipitation combined with the high winds in the region will create a critical fire weather environment. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ NEZ436-WYZ432-433-191200- /O.UPG.KCYS.FW.A.0013.251219T1700Z-251220T0600Z/ /O.NEW.KCYS.FW.W.0022.251219T1700Z-251220T0600Z/ Lower North Platte River Basin/Scottsbluff National Monument- Bordeaux/Chugwater/Wheatland-Goshen/Middle- Lower North Platte River Basin- 1048 AM MST Thu Dec 18 2025 ...RED FLAG WARNING IN EFFECT FROM 10 AM TO 11 PM MST FRIDAY FOR GUSTY WINDS AND LOW HUMIDITY.... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from 10 AM to 11 PM MST Friday. The Fire Weather Watch is no longer in effect. * WIND...Gusts 50 to 75 mph. * HUMIDITY...RH values of 15 to 20%. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. Although conditions will be borderline, a lack of significant precipitation combined with the high winds in the region will create a critical fire weather environment. 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. && $$ NEZ434-435-WYZ417-418-191200- /O.NEW.KCYS.FW.W.0022.251219T1700Z-251220T0600Z/ Pine Ridge/Nebraska National Forest- Box Butte/South Sioux/Niobrara River- Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland- Middle North Platte River Basin/Niobrara and Converse High Plains- 1048 AM MST Thu Dec 18 2025 ...RED FLAG WARNING IN EFFECT FROM 10 AM TO 11 PM MST FRIDAY FOR GUSTY WINDS AND LOW HUMIDITY... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from 10 AM to 11 PM MST Friday. * AFFECTED AREA...Fire weather zones 434, 435, 417, 418. * WIND...Gusts 40 to 60 mph. * HUMIDITY...RH values 15 to 30%. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. Although conditions will be borderline, a lack of significant precipitation combined with the high winds in the region will create a critical fire weather environment. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ Action: New Issued At: 2025-12-18 11:49:17 838 WWUS85 KCYS 181748 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 1048 AM MST Thu Dec 18 2025 ...RED FLAG WARNING IN EFFECT THIS MORNING AND AFTERNOON FOR PORTIONS OF SOUTHEAST WYOMING AND THE SOUTHERN NEBRASKA PANHANDLE... ...RED FLAG WARNING NOW IN EFFECT ON FRIDAY FOR MUCH OF THE HIGH PLAINS... NEZ437-WYZ430-431-191200- /O.UPG.KCYS.FW.A.0013.251219T1700Z-251220T0600Z/ /O.NEW.KCYS.FW.W.0022.251219T1700Z-251220T0600Z/ /O.CON.KCYS.FW.W.0021.000000T0000Z-251219T0000Z/ Lodgepole Creek/Southern Nebraska Panhandle- Laramie Foothills and High Plains-Laramie East High Plains- 1048 AM MST Thu Dec 18 2025 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS AFTERNOON FOR LOW RH AND STRONG WINDS FOR FIRE WEATHER ZONES 430, 431, AND 437... ...RED FLAG WARNING IN EFFECT FROM 10 AM TO 11 PM MST FRIDAY FOR GUSTY WINDS AND LOW HUMIDITY... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from 10 AM to 11 PM MST Friday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Fire weather zones 430, 431 and 437. * WIND...For today - Gusts 40 to 60 mph. For tomorrow - Gusts 50 to 70 mph. * HUMIDITY...For today - RH values of 20 to 25%. For tomorrow - RH values of 15 to 20%. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. Although conditions will be borderline, a lack of significant precipitation combined with the high winds in the region will create a critical fire weather environment. 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. && $$ NEZ436-WYZ432-433-191200- /O.UPG.KCYS.FW.A.0013.251219T1700Z-251220T0600Z/ /O.NEW.KCYS.FW.W.0022.251219T1700Z-251220T0600Z/ Lower North Platte River Basin/Scottsbluff National Monument- Bordeaux/Chugwater/Wheatland-Goshen/Middle- Lower North Platte River Basin- 1048 AM MST Thu Dec 18 2025 ...RED FLAG WARNING IN EFFECT FROM 10 AM TO 11 PM MST FRIDAY FOR GUSTY WINDS AND LOW HUMIDITY.... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from 10 AM to 11 PM MST Friday. The Fire Weather Watch is no longer in effect. * WIND...Gusts 50 to 75 mph. * HUMIDITY...RH values of 15 to 20%. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. Although conditions will be borderline, a lack of significant precipitation combined with the high winds in the region will create a critical fire weather environment. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ NEZ434-435-WYZ417-418-191200- /O.NEW.KCYS.FW.W.0022.251219T1700Z-251220T0600Z/ 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- 1048 AM MST Thu Dec 18 2025 ...RED FLAG WARNING IN EFFECT FROM 10 AM TO 11 PM MST FRIDAY FOR GUSTY WINDS AND LOW HUMIDITY... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from 10 AM to 11 PM MST Friday. * AFFECTED AREA...Fire weather zones 434, 435, 417, 418. * WIND...Gusts 40 to 60 mph. * HUMIDITY...RH values 15 to 30%. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. Although conditions will be borderline, a lack of significant precipitation combined with the high winds in the region will create a critical fire weather environment. 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. && $$ Action: Continued Issued At: 2025-12-18 17:48:26 919 WWUS85 KCYS 182347 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 447 PM MST Thu Dec 18 2025 ...RED FLAG WARNING IN EFFECT THIS MORNING AND AFTERNOON FOR PORTIONS OF SOUTHEAST WYOMING AND THE SOUTHERN NEBRASKA PANHANDLE... ...RED FLAG WARNING NOW IN EFFECT ON FRIDAY FOR MUCH OF THE HIGH PLAINS... NEZ437-WYZ430-431-191200- /O.EXP.KCYS.FW.W.0021.000000T0000Z-251219T0000Z/ /O.CON.KCYS.FW.W.0022.251219T1700Z-251220T0600Z/ Lodgepole Creek/Southern Nebraska Panhandle- Laramie Foothills and High Plains-Laramie East High Plains- 447 PM MST Thu Dec 18 2025 ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM TO 11 PM MST FRIDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 430, 431, AND 437... ...RED FLAG WARNING WILL EXPIRE AT 5 PM MST THIS AFTERNOON FOR GUSTY WINDS AND LOW Humidity FOR FIRE WEATHER ZONES 430, 431, AND 437... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from 10 AM to 11 PM MST Friday. * AFFECTED AREA...Fire weather zones 430, 431 and 437. * WIND...For today - Gusts 40 to 60 mph. For tomorrow - Gusts 50 to 70 mph. * HUMIDITY...RH values of 15 to 20%. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. Although conditions will be borderline, a lack of significant precipitation combined with the high winds in the region will create a critical fire weather environment. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ NEZ434>436-WYZ417-418-432-433-191200- /O.CON.KCYS.FW.W.0022.251219T1700Z-251220T0600Z/ Pine Ridge/Nebraska National Forest- Box Butte/South Sioux/Niobrara River- Lower North Platte River Basin/Scottsbluff National Monument- Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland- Middle North Platte River Basin/Niobrara and Converse High Plains- Bordeaux/Chugwater/Wheatland-Goshen/Middle- Lower North Platte River Basin- 447 PM MST Thu Dec 18 2025 ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM TO 11 PM MST FRIDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 417, 418, 432, 433, 434, 435, AND 436... * AFFECTED AREA...Fire weather zones 434, 435, 417, 418. * WIND...Gusts 40 to 60 mph. * HUMIDITY...RH values 15 to 30%. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. Although conditions will be borderline, a lack of significant precipitation combined with the high winds in the region will create a critical fire weather environment. 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. && $$ Action: Continued Issued At: 2025-12-18 17:48:26 919 WWUS85 KCYS 182347 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 447 PM MST Thu Dec 18 2025 ...RED FLAG WARNING IN EFFECT THIS MORNING AND AFTERNOON FOR PORTIONS OF SOUTHEAST WYOMING AND THE SOUTHERN NEBRASKA PANHANDLE... ...RED FLAG WARNING NOW IN EFFECT ON FRIDAY FOR MUCH OF THE HIGH PLAINS... NEZ437-WYZ430-431-191200- /O.EXP.KCYS.FW.W.0021.000000T0000Z-251219T0000Z/ /O.CON.KCYS.FW.W.0022.251219T1700Z-251220T0600Z/ Lodgepole Creek/Southern Nebraska Panhandle- Laramie Foothills and High Plains-Laramie East High Plains- 447 PM MST Thu Dec 18 2025 ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM TO 11 PM MST FRIDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 430, 431, AND 437... ...RED FLAG WARNING WILL EXPIRE AT 5 PM MST THIS AFTERNOON FOR GUSTY WINDS AND LOW Humidity FOR FIRE WEATHER ZONES 430, 431, AND 437... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from 10 AM to 11 PM MST Friday. * AFFECTED AREA...Fire weather zones 430, 431 and 437. * WIND...For today - Gusts 40 to 60 mph. For tomorrow - Gusts 50 to 70 mph. * HUMIDITY...RH values of 15 to 20%. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. Although conditions will be borderline, a lack of significant precipitation combined with the high winds in the region will create a critical fire weather environment. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ NEZ434>436-WYZ417-418-432-433-191200- /O.CON.KCYS.FW.W.0022.251219T1700Z-251220T0600Z/ Pine Ridge/Nebraska National Forest- Box Butte/South Sioux/Niobrara River- Lower North Platte River Basin/Scottsbluff National Monument- Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland- Middle North Platte River Basin/Niobrara and Converse High Plains- Bordeaux/Chugwater/Wheatland-Goshen/Middle- Lower North Platte River Basin- 447 PM MST Thu Dec 18 2025 ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM TO 11 PM MST FRIDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 417, 418, 432, 433, 434, 435, AND 436... * AFFECTED AREA...Fire weather zones 434, 435, 417, 418. * WIND...Gusts 40 to 60 mph. * HUMIDITY...RH values 15 to 30%. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. Although conditions will be borderline, a lack of significant precipitation combined with the high winds in the region will create a critical fire weather environment. 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. && $$ Action: Continued Issued At: 2025-12-19 03:13:20 125 WWUS85 KCYS 190912 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 212 AM MST Fri Dec 19 2025 ...RED FLAG WARNING IN EFFECT THIS MORNING AND AFTERNOON FOR PORTIONS OF SOUTHEAST WYOMING AND THE NEBRASKA PANHANDLE... NEZ434>437-WYZ417-418-430>433-200000- /O.CON.KCYS.FW.W.0022.251219T1700Z-251220T0600Z/ Pine Ridge/Nebraska National Forest- Box Butte/South Sioux/Niobrara River- Lower North Platte River Basin/Scottsbluff National Monument- Lodgepole Creek/Southern Nebraska Panhandle- Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland- Middle North Platte River Basin/Niobrara and Converse High Plains- Laramie Foothills and High Plains-Laramie East High Plains- Bordeaux/Chugwater/Wheatland-Goshen/Middle- Lower North Platte River Basin- 212 AM MST Fri Dec 19 2025 ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 11 PM MST THIS EVENING FOR LOW RH, STRONG GUSTING WINDS, AND DRY FUELS FOR FIRE WEATHER ZONES 417, 418, 430, 431, 432, 433, 434, 435, 436, AND 437... * AFFECTED AREA...Fire weather zones 417, 418, 430, 431, 432, 433, 434, 435, 436, and 437. * WIND...Gusts 50 to 70 mph. * HUMIDITY...RH values 15 to 30%. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. Although conditions will be borderline in some zones, a lack of significant precipitation combined with the very high winds in the region will create a critical fire weather environment. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ Action: Time and Area Extended Issued At: 2025-12-19 04:46:35 851 WWUS85 KCYS 191046 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 346 AM MST Fri Dec 19 2025 ...A PARTICULARLY DANGEROUS SITUATION FOR THE FOOTHILLS OF AND IMMEDIATELY ADJACENT OF THE SOUTHERN LARAMIE RANGE THROUGH LARAMIE COUNTY IS EXPECTED ON FRIDAY... A strong wind event is ongoing and expected to continue to strengthen through much of today alongside rising temperatures and dry conditions including humidity values into the teens. With sustained winds of 40 to 55 mph and gusts of 60 to 75+ mph expected alongside these dry conditions, an extreme environment conducive of significant and rapid wildfire spread will be present. The most likely time for stronger winds and lowered relative humidity values will lie just after sunrise through the late afternoon and early evening hours, with the potential for lowered relative humidity values lingering beyond sunset due to the expected dry flow across the region. This environment will be most likely for elevations below 8000 feet along the southern Laramie Range and eastwards through most of Laramie County. WYZ429-200015- /O.EXB.KCYS.FW.W.0022.251219T1200Z-251220T0700Z/ Southern Laramie Range- 346 AM MST Fri Dec 19 2025 ...RED FLAG WARNING IN EFFECT FROM 5 AM THIS MORNING TO MIDNIGHT MST TONIGHT FOR LOW RH, STRONG WINDS, AND DRY FUELS FOR FIRE WEATHER ZONE 429... * THIS IS A PARTICULARLY DANGEROUS SITUATION FOR THE FOOTHILLS AND MID ELEVATIONS OF THE SOUTHERN LARAMIE RANGE. * AFFECTED AREA...Fire weather zone 429. * WIND...Sustained winds 40 to 55 mph. Gusts in excess of 60 to 75 mph. * HUMIDITY...RH values 15 to 25%. * IMPACTS...Conditions will be favorable for very rapid fire spread. Avoid outdoor burning and any activity that may produce a spark and start a wildfire. PRECAUTIONARY/PREPAREDNESS ACTIONS... This is a Particularly Dangerous Situation that poses a significant threat to life and property in the event of a wildfire start. Residents are urged to assemble an emergency supply kit and know their evacuation routes. In some cases, safe and timely evacuation may not be possible should a fire approach. Have multiple ways to receive instructions from emergency services, and evacuate if ordered to or if a fire threatens. && $$ NEZ434>437-WYZ417-418-432-433-200015- /O.EXT.KCYS.FW.W.0022.251219T1500Z-251220T0700Z/ Pine Ridge/Nebraska National Forest- Box Butte/South Sioux/Niobrara River- Lower North Platte River Basin/Scottsbluff National Monument- Lodgepole Creek/Southern Nebraska Panhandle- Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland- Middle North Platte River Basin/Niobrara and Converse High Plains- Bordeaux/Chugwater/Wheatland-Goshen/Middle- Lower North Platte River Basin- 346 AM MST Fri Dec 19 2025 ...RED FLAG WARNING NOW IN EFFECT FROM 8 AM THIS MORNING TO MIDNIGHT MST TONIGHT FOR LOW RH, STRONG WINDS, AND DRY FUELS FOR FIRE WEATHER ZONES 417, 418, 432, 433, 434, 435, 436, AND 437... * AFFECTED AREA...Fire weather zones 417, 418, 432, 433, 434, 435, 436, and 437. * WIND...Sustained winds 30 to 50 mph. Gusts in excess of 55 to 70 mph. * HUMIDITY...RH values 15 to 30%. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. Although conditions will be borderline in some zones, a lack of significant precipitation combined with the very high winds in the region will create a critical fire weather environment. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ WYZ430-431-200015- /O.EXT.KCYS.FW.W.0022.251219T1200Z-251220T0700Z/ Laramie Foothills and High Plains-Laramie East High Plains- 346 AM MST Fri Dec 19 2025 ...RED FLAG WARNING NOW IN EFFECT FROM 5 AM THIS MORNING TO MIDNIGHT MST TONIGHT FOR LOW RH, STRONG WINDS, AND DRY FUELS FOR FIRE WEATHER ZONES 430 AND 431... * THIS IS A PARTICULARLY DANGEROUS SITUATION FOR LARAMIE COUNTY AND THE SOUTHERN LARAMIE RANGE FOOTHILLS. * AFFECTED AREA...Fire weather zones 430 and 431. * WIND...Sustained winds 40 to 55 mph. Gusts in excess of 60 to 75 mph. * HUMIDITY...RH values 15 to 25%. * IMPACTS...Conditions will be favorable for very rapid fire spread. Avoid outdoor burning and any activity that may produce a spark and start a wildfire. PRECAUTIONARY/PREPAREDNESS ACTIONS... This is a Particularly Dangerous Situation that poses a significant threat to life and property in the event of a wildfire start. Residents are urged to assemble an emergency supply kit and know their evacuation routes. In some cases, safe and timely evacuation may not be possible should a fire approach. Have multiple ways to receive instructions from emergency services, and evacuate if ordered to or if a fire threatens. && $$ Action: Time Extended Issued At: 2025-12-19 04:46:35 851 WWUS85 KCYS 191046 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 346 AM MST Fri Dec 19 2025 ...A PARTICULARLY DANGEROUS SITUATION FOR THE FOOTHILLS OF AND IMMEDIATELY ADJACENT OF THE SOUTHERN LARAMIE RANGE THROUGH LARAMIE COUNTY IS EXPECTED ON FRIDAY... A strong wind event is ongoing and expected to continue to strengthen through much of today alongside rising temperatures and dry conditions including humidity values into the teens. With sustained winds of 40 to 55 mph and gusts of 60 to 75+ mph expected alongside these dry conditions, an extreme environment conducive of significant and rapid wildfire spread will be present. The most likely time for stronger winds and lowered relative humidity values will lie just after sunrise through the late afternoon and early evening hours, with the potential for lowered relative humidity values lingering beyond sunset due to the expected dry flow across the region. This environment will be most likely for elevations below 8000 feet along the southern Laramie Range and eastwards through most of Laramie County. WYZ429-200015- /O.EXB.KCYS.FW.W.0022.251219T1200Z-251220T0700Z/ Southern Laramie Range- 346 AM MST Fri Dec 19 2025 ...RED FLAG WARNING IN EFFECT FROM 5 AM THIS MORNING TO MIDNIGHT MST TONIGHT FOR LOW RH, STRONG WINDS, AND DRY FUELS FOR FIRE WEATHER ZONE 429... * THIS IS A PARTICULARLY DANGEROUS SITUATION FOR THE FOOTHILLS AND MID ELEVATIONS OF THE SOUTHERN LARAMIE RANGE. * AFFECTED AREA...Fire weather zone 429. * WIND...Sustained winds 40 to 55 mph. Gusts in excess of 60 to 75 mph. * HUMIDITY...RH values 15 to 25%. * IMPACTS...Conditions will be favorable for very rapid fire spread. Avoid outdoor burning and any activity that may produce a spark and start a wildfire. PRECAUTIONARY/PREPAREDNESS ACTIONS... This is a Particularly Dangerous Situation that poses a significant threat to life and property in the event of a wildfire start. Residents are urged to assemble an emergency supply kit and know their evacuation routes. In some cases, safe and timely evacuation may not be possible should a fire approach. Have multiple ways to receive instructions from emergency services, and evacuate if ordered to or if a fire threatens. && $$ NEZ434>437-WYZ417-418-432-433-200015- /O.EXT.KCYS.FW.W.0022.251219T1500Z-251220T0700Z/ 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- Bordeaux/Chugwater/Wheatland-Goshen/Middle- Lower North Platte River Basin- 346 AM MST Fri Dec 19 2025 ...RED FLAG WARNING NOW IN EFFECT FROM 8 AM THIS MORNING TO MIDNIGHT MST TONIGHT FOR LOW RH, STRONG WINDS, AND DRY FUELS FOR FIRE WEATHER ZONES 417, 418, 432, 433, 434, 435, 436, AND 437... * AFFECTED AREA...Fire weather zones 417, 418, 432, 433, 434, 435, 436, and 437. * WIND...Sustained winds 30 to 50 mph. Gusts in excess of 55 to 70 mph. * HUMIDITY...RH values 15 to 30%. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. Although conditions will be borderline in some zones, a lack of significant precipitation combined with the very high winds in the region will create a critical fire weather environment. 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. && $$ WYZ430-431-200015- /O.EXT.KCYS.FW.W.0022.251219T1200Z-251220T0700Z/ Laramie Foothills and High Plains-Laramie East High Plains- 346 AM MST Fri Dec 19 2025 ...RED FLAG WARNING NOW IN EFFECT FROM 5 AM THIS MORNING TO MIDNIGHT MST TONIGHT FOR LOW RH, STRONG WINDS, AND DRY FUELS FOR FIRE WEATHER ZONES 430 AND 431... * THIS IS A PARTICULARLY DANGEROUS SITUATION FOR LARAMIE COUNTY AND THE SOUTHERN LARAMIE RANGE FOOTHILLS. * AFFECTED AREA...Fire weather zones 430 and 431. * WIND...Sustained winds 40 to 55 mph. Gusts in excess of 60 to 75 mph. * HUMIDITY...RH values 15 to 25%. * IMPACTS...Conditions will be favorable for very rapid fire spread. Avoid outdoor burning and any activity that may produce a spark and start a wildfire. PRECAUTIONARY/PREPAREDNESS ACTIONS... This is a Particularly Dangerous Situation that poses a significant threat to life and property in the event of a wildfire start. Residents are urged to assemble an emergency supply kit and know their evacuation routes. In some cases, safe and timely evacuation may not be possible should a fire approach. Have multiple ways to receive instructions from emergency services, and evacuate if ordered to or if a fire threatens. && $$ Action: Time Extended Issued At: 2025-12-19 04:46:35 851 WWUS85 KCYS 191046 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 346 AM MST Fri Dec 19 2025 ...A PARTICULARLY DANGEROUS SITUATION FOR THE FOOTHILLS OF AND IMMEDIATELY ADJACENT OF THE SOUTHERN LARAMIE RANGE THROUGH LARAMIE COUNTY IS EXPECTED ON FRIDAY... A strong wind event is ongoing and expected to continue to strengthen through much of today alongside rising temperatures and dry conditions including humidity values into the teens. With sustained winds of 40 to 55 mph and gusts of 60 to 75+ mph expected alongside these dry conditions, an extreme environment conducive of significant and rapid wildfire spread will be present. The most likely time for stronger winds and lowered relative humidity values will lie just after sunrise through the late afternoon and early evening hours, with the potential for lowered relative humidity values lingering beyond sunset due to the expected dry flow across the region. This environment will be most likely for elevations below 8000 feet along the southern Laramie Range and eastwards through most of Laramie County. WYZ429-200015- /O.EXB.KCYS.FW.W.0022.251219T1200Z-251220T0700Z/ Southern Laramie Range- 346 AM MST Fri Dec 19 2025 ...RED FLAG WARNING IN EFFECT FROM 5 AM THIS MORNING TO MIDNIGHT MST TONIGHT FOR LOW RH, STRONG WINDS, AND DRY FUELS FOR FIRE WEATHER ZONE 429... * THIS IS A PARTICULARLY DANGEROUS SITUATION FOR THE FOOTHILLS AND MID ELEVATIONS OF THE SOUTHERN LARAMIE RANGE. * AFFECTED AREA...Fire weather zone 429. * WIND...Sustained winds 40 to 55 mph. Gusts in excess of 60 to 75 mph. * HUMIDITY...RH values 15 to 25%. * IMPACTS...Conditions will be favorable for very rapid fire spread. Avoid outdoor burning and any activity that may produce a spark and start a wildfire. PRECAUTIONARY/PREPAREDNESS ACTIONS... This is a Particularly Dangerous Situation that poses a significant threat to life and property in the event of a wildfire start. Residents are urged to assemble an emergency supply kit and know their evacuation routes. In some cases, safe and timely evacuation may not be possible should a fire approach. Have multiple ways to receive instructions from emergency services, and evacuate if ordered to or if a fire threatens. && $$ NEZ434>437-WYZ417-418-432-433-200015- /O.EXT.KCYS.FW.W.0022.251219T1500Z-251220T0700Z/ Pine Ridge/Nebraska National Forest- Box Butte/South Sioux/Niobrara River- Lower North Platte River Basin/Scottsbluff National Monument- Lodgepole Creek/Southern Nebraska Panhandle- Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland- Middle North Platte River Basin/Niobrara and Converse High Plains- Bordeaux/Chugwater/Wheatland-Goshen/Middle- Lower North Platte River Basin- 346 AM MST Fri Dec 19 2025 ...RED FLAG WARNING NOW IN EFFECT FROM 8 AM THIS MORNING TO MIDNIGHT MST TONIGHT FOR LOW RH, STRONG WINDS, AND DRY FUELS FOR FIRE WEATHER ZONES 417, 418, 432, 433, 434, 435, 436, AND 437... * AFFECTED AREA...Fire weather zones 417, 418, 432, 433, 434, 435, 436, and 437. * WIND...Sustained winds 30 to 50 mph. Gusts in excess of 55 to 70 mph. * HUMIDITY...RH values 15 to 30%. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. Although conditions will be borderline in some zones, a lack of significant precipitation combined with the very high winds in the region will create a critical fire weather environment. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ WYZ430-431-200015- /O.EXT.KCYS.FW.W.0022.251219T1200Z-251220T0700Z/ Laramie Foothills and High Plains-Laramie East High Plains- 346 AM MST Fri Dec 19 2025 ...RED FLAG WARNING NOW IN EFFECT FROM 5 AM THIS MORNING TO MIDNIGHT MST TONIGHT FOR LOW RH, STRONG WINDS, AND DRY FUELS FOR FIRE WEATHER ZONES 430 AND 431... * THIS IS A PARTICULARLY DANGEROUS SITUATION FOR LARAMIE COUNTY AND THE SOUTHERN LARAMIE RANGE FOOTHILLS. * AFFECTED AREA...Fire weather zones 430 and 431. * WIND...Sustained winds 40 to 55 mph. Gusts in excess of 60 to 75 mph. * HUMIDITY...RH values 15 to 25%. * IMPACTS...Conditions will be favorable for very rapid fire spread. Avoid outdoor burning and any activity that may produce a spark and start a wildfire. PRECAUTIONARY/PREPAREDNESS ACTIONS... This is a Particularly Dangerous Situation that poses a significant threat to life and property in the event of a wildfire start. Residents are urged to assemble an emergency supply kit and know their evacuation routes. In some cases, safe and timely evacuation may not be possible should a fire approach. Have multiple ways to receive instructions from emergency services, and evacuate if ordered to or if a fire threatens. && $$ Action: Continued Issued At: 2025-12-19 14:45:24 325 WWUS85 KCYS 192045 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 145 PM MST Fri Dec 19 2025 ...A PARTICULARLY DANGEROUS SITUATION FOR THE FOOTHILLS OF AND IMMEDIATELY ADJACENT OF THE SOUTHERN LARAMIE RANGE THROUGH LARAMIE COUNTY IS EXPECTED ON FRIDAY... A strong wind event is ongoing, sustained winds of 40 to 55 mph and gusts of 60 to 75+ mph, alongside dry conditions and low humidity is creating an extreme environment conducive of significant and rapid wildfire spread. These conditions will continue into the early evening hours before improving later tonight. These conditions will remain for elevations below 8000 feet along the southern Laramie Range and eastwards through most of Laramie County. NEZ434>437-WYZ417-418-432-433-200700- /O.CON.KCYS.FW.W.0022.000000T0000Z-251220T0700Z/ 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- Bordeaux/Chugwater/Wheatland-Goshen/Middle- Lower North Platte River Basin- 145 PM MST Fri Dec 19 2025 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT FOR LOW RH, STRONG WINDS, AND DRY FUELS FOR FIRE WEATHER ZONES 417, 418, 432, 433, 434, 435, 436, AND 437... * AFFECTED AREA...Fire weather zones 417, 418, 432, 433, 434, 435, 436, and 437. * WIND...Sustained winds 30 to 50 mph with gusts in excess of 55 to 70 mph. * HUMIDITY...RH values as low as 15 to 30%. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. Although conditions will be borderline in some zones, a lack of significant precipitation combined with the very high winds in the region will create a critical fire weather environment. 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. && $$ WYZ429>431-200700- /O.CON.KCYS.FW.W.0022.000000T0000Z-251220T0700Z/ Southern Laramie Range-Laramie Foothills and High Plains- Laramie East High Plains- 145 PM MST Fri Dec 19 2025 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT FOR LOW RH, STRONG WINDS, AND DRY FUELS FOR FIRE WEATHER ZONE 429... * THIS IS A PARTICULARLY DANGEROUS SITUATION FOR THE FOOTHILLS AND MID ELEVATIONS OF THE SOUTHERN LARAMIE RANGE. * AFFECTED AREA...Fire weather zone 429. * WIND...Sustained winds 40 to 55 mph with gusts in excess of 60 to 75 mph. * HUMIDITY...RH values as low as 15 to 25%. * IMPACTS...Conditions will be favorable for very rapid fire spread. Avoid outdoor burning and any activity that may produce a spark and start a wildfire. PRECAUTIONARY/PREPAREDNESS ACTIONS... This is a Particularly Dangerous Situation that poses a significant threat to life and property in the event of a wildfire start. Residents are urged to assemble an emergency supply kit and know their evacuation routes. In some cases, safe and timely evacuation may not be possible should a fire approach. Have multiple ways to receive instructions from emergency services, and evacuate if ordered to or if a fire threatens. && $$ Action: Continued Issued At: 2025-12-19 14:45:24 325 WWUS85 KCYS 192045 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 145 PM MST Fri Dec 19 2025 ...A PARTICULARLY DANGEROUS SITUATION FOR THE FOOTHILLS OF AND IMMEDIATELY ADJACENT OF THE SOUTHERN LARAMIE RANGE THROUGH LARAMIE COUNTY IS EXPECTED ON FRIDAY... A strong wind event is ongoing, sustained winds of 40 to 55 mph and gusts of 60 to 75+ mph, alongside dry conditions and low humidity is creating an extreme environment conducive of significant and rapid wildfire spread. These conditions will continue into the early evening hours before improving later tonight. These conditions will remain for elevations below 8000 feet along the southern Laramie Range and eastwards through most of Laramie County. NEZ434>437-WYZ417-418-432-433-200700- /O.CON.KCYS.FW.W.0022.000000T0000Z-251220T0700Z/ 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- Bordeaux/Chugwater/Wheatland-Goshen/Middle- Lower North Platte River Basin- 145 PM MST Fri Dec 19 2025 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT FOR LOW RH, STRONG WINDS, AND DRY FUELS FOR FIRE WEATHER ZONES 417, 418, 432, 433, 434, 435, 436, AND 437... * AFFECTED AREA...Fire weather zones 417, 418, 432, 433, 434, 435, 436, and 437. * WIND...Sustained winds 30 to 50 mph with gusts in excess of 55 to 70 mph. * HUMIDITY...RH values as low as 15 to 30%. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. Although conditions will be borderline in some zones, a lack of significant precipitation combined with the very high winds in the region will create a critical fire weather environment. 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. && $$ WYZ429>431-200700- /O.CON.KCYS.FW.W.0022.000000T0000Z-251220T0700Z/ Southern Laramie Range-Laramie Foothills and High Plains- Laramie East High Plains- 145 PM MST Fri Dec 19 2025 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST TONIGHT FOR LOW RH, STRONG WINDS, AND DRY FUELS FOR FIRE WEATHER ZONE 429... * THIS IS A PARTICULARLY DANGEROUS SITUATION FOR THE FOOTHILLS AND MID ELEVATIONS OF THE SOUTHERN LARAMIE RANGE. * AFFECTED AREA...Fire weather zone 429. * WIND...Sustained winds 40 to 55 mph with gusts in excess of 60 to 75 mph. * HUMIDITY...RH values as low as 15 to 25%. * IMPACTS...Conditions will be favorable for very rapid fire spread. Avoid outdoor burning and any activity that may produce a spark and start a wildfire. PRECAUTIONARY/PREPAREDNESS ACTIONS... This is a Particularly Dangerous Situation that poses a significant threat to life and property in the event of a wildfire start. Residents are urged to assemble an emergency supply kit and know their evacuation routes. In some cases, safe and timely evacuation may not be possible should a fire approach. Have multiple ways to receive instructions from emergency services, and evacuate if ordered to or if a fire threatens. && $$ Action: Expired Issued At: 2025-12-20 00:40:39 594 WWUS85 KCYS 200640 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 1140 PM MST Fri Dec 19 2025 NEZ434>437-WYZ417-418-432-433-200745- /O.EXP.KCYS.FW.W.0022.000000T0000Z-251220T0700Z/ Pine Ridge/Nebraska National Forest- Box Butte/South Sioux/Niobrara River- Lower North Platte River Basin/Scottsbluff National Monument- Lodgepole Creek/Southern Nebraska Panhandle- Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland- Middle North Platte River Basin/Niobrara and Converse High Plains- Bordeaux/Chugwater/Wheatland-Goshen/Middle- Lower North Platte River Basin- 1140 PM MST Fri Dec 19 2025 ...RED FLAG WARNING WILL EXPIRE AT MIDNIGHT MST TONIGHT FOR LOW RH, STRONG WINDS, AND DRY FUELS FOR FIRE WEATHER ZONES 417, 418, 432, 433, 434, 435, 436, AND 437... While gusty winds will persist through the nighttime hours, RH values are on the rise and will continue to increase as the cold front comes through and moisture moves into the region. Therefore the Red Flag Warning will be allowed to expire. $$ WYZ429>431-200745- /O.EXP.KCYS.FW.W.0022.000000T0000Z-251220T0700Z/ Southern Laramie Range-Laramie Foothills and High Plains- Laramie East High Plains- 1140 PM MST Fri Dec 19 2025 ...RED FLAG WARNING WILL EXPIRE AT MIDNIGHT MST TONIGHT FOR LOW RH, STRONG WINDS, AND DRY FUELS FOR FIRE WEATHER ZONES 429, 430, AND 431... While gusty winds will persist through the nighttime hours, RH values are on the rise and will continue to increase as the cold front comes through and moisture moves into the region. Therefore the Red Flag Warning will be allowed to expire. $$ Action: Expired Issued At: 2025-12-20 00:40:39 594 WWUS85 KCYS 200640 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 1140 PM MST Fri Dec 19 2025 NEZ434>437-WYZ417-418-432-433-200745- /O.EXP.KCYS.FW.W.0022.000000T0000Z-251220T0700Z/ Pine Ridge/Nebraska National Forest- Box Butte/South Sioux/Niobrara River- Lower North Platte River Basin/Scottsbluff National Monument- Lodgepole Creek/Southern Nebraska Panhandle- Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland- Middle North Platte River Basin/Niobrara and Converse High Plains- Bordeaux/Chugwater/Wheatland-Goshen/Middle- Lower North Platte River Basin- 1140 PM MST Fri Dec 19 2025 ...RED FLAG WARNING WILL EXPIRE AT MIDNIGHT MST TONIGHT FOR LOW RH, STRONG WINDS, AND DRY FUELS FOR FIRE WEATHER ZONES 417, 418, 432, 433, 434, 435, 436, AND 437... While gusty winds will persist through the nighttime hours, RH values are on the rise and will continue to increase as the cold front comes through and moisture moves into the region. Therefore the Red Flag Warning will be allowed to expire. $$ WYZ429>431-200745- /O.EXP.KCYS.FW.W.0022.000000T0000Z-251220T0700Z/ Southern Laramie Range-Laramie Foothills and High Plains- Laramie East High Plains- 1140 PM MST Fri Dec 19 2025 ...RED FLAG WARNING WILL EXPIRE AT MIDNIGHT MST TONIGHT FOR LOW RH, STRONG WINDS, AND DRY FUELS FOR FIRE WEATHER ZONES 429, 430, AND 431... While gusty winds will persist through the nighttime hours, RH values are on the rise and will continue to increase as the cold front comes through and moisture moves into the region. Therefore the Red Flag Warning will be allowed to expire. $$ | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||