Alert archive / Wyoming / Red Flag Warnings in 2021
Red Flag Warning 35, NWS Cheyenne, WY
NWS Cheyenne, WY issued this red flag warning at Sep 17, 2021, 1:52 PM MDT. It took effect at Sep 18, 2021, 8:01 AM MDT. It was in force for 12 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Sep 17, 2021, 1:52 PM MDT (19:52 UTC)
- In effect from
- Sep 18, 2021, 8:01 AM MDT
- Expired
- Sep 18, 2021, 8:00 PM MDT
- In force
- 12 hr
- Issued by
- NWS Cheyenne, WY
The text
As transmitted.
380 WWUS85 KCYS 171952 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 152 PM MDT Fri Sep 17 2021 ...CRITICAL FIRE WEATHER CONDITIONS THROUGH SATURDAY AFTERNOON. RED FLAG WARNINGS AND FIRE WEATHER WATCHES IN EFFECT.... WYZ301-303-308-181200- /O.UPG.KCYS.FW.A.0033.210918T1700Z-210919T0200Z/ /O.NEW.KCYS.FW.W.0035.210918T1700Z-210919T0200Z/ /O.CON.KCYS.FW.W.0034.000000T0000Z-210918T0200Z/ Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland-Central and Northern Carbon/Ferris-Seminoe- Shirley Mountains-Laramie Valley/Shirley Basin- 152 PM MDT Fri Sep 17 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 301...303 AND 308... ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 8 PM MDT SATURDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 301...303 AND 308... The National Weather Service in Cheyenne continues a Red Flag Warning for today through 8 PM. A Red Flag Warning, is also in effect from 11 AM to 8 PM MDT Saturday. * WIND...West winds from 15 to 25 gusting to 35 mph for late morning through the afternoon both today and Saturday. * HUMIDITY...10 to 15 percent. * HAINES...5 to 6 * 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. && $$ WYZ304-306-181200- /O.NEW.KCYS.FW.W.0035.210918T1700Z-210919T0200Z/ /O.CON.KCYS.FW.W.0034.000000T0000Z-210918T0200Z/ Southwest Carbon County-Upper North Platte River Basin- 152 PM MDT Fri Sep 17 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 304 AND 306... ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 8 PM MDT SATURDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 304 AND 306... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from 11 AM to 8 PM MDT Saturday. * WIND...West winds from 15 to 25 gusting to 35 mph both today and Saturday. * HUMIDITY...10 to 15 percent. * HAINES...5 to 6 * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ NEZ311-WYZ310-181200- /O.UPG.KCYS.FW.A.0033.210918T1700Z-210919T0200Z/ /O.NEW.KCYS.FW.W.0035.210918T1700Z-210919T0200Z/ Pine Ridge/Nebraska National Forest/Oglala National Grasslands- Platte/Goshen/Central and Eastern Laramie- 152 PM MDT Fri Sep 17 2021 ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 8 PM MDT SATURDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 310 AND 311... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from 11 AM to 8 PM MDT Saturday. * WIND...West winds from 15 to 25 gusting to 35 mph. * HUMIDITY...10 to 15 percent. * HAINES...5 to 6 * 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. && $$ WYZ302-305-307-180200- /O.CON.KCYS.FW.W.0034.000000T0000Z-210918T0200Z/ North Laramie Range/Medicine Bow NF- Sierra Madre Range/Medicine Bow NF-Snowy Range/Medicine Bow NF- 152 PM MDT Fri Sep 17 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 302...305 AND 307... * WIND...West winds from 15 to 25 gusting to 35 mph. * HUMIDITY...10 to 15 percent. * HAINES...5 to 6 * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$
4 follow-up statements
859 WWUS85 KCYS 180145 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 745 PM MDT Fri Sep 17 2021 ...RED FLAG WARNING FOR MUCH OF SOUTHEAST WYOMING AND THE FAR NORTHERN NEBRASKA PANHANDLE LATE SATURDAY MORNING THROUGH EARLY SATURDAY EVENING... WYZ301-303-304-306-308-181200- /O.EXP.KCYS.FW.W.0034.000000T0000Z-210918T0200Z/ /O.CON.KCYS.FW.W.0035.210918T1700Z-210919T0200Z/ Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland-Central and Northern Carbon/Ferris-Seminoe- Shirley Mountains-Southwest Carbon County- Upper North Platte River Basin-Laramie Valley/Shirley Basin- 745 PM MDT Fri Sep 17 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM TO 8 PM MDT SATURDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 301...303...304...306 AND 308... ...RED FLAG WARNING WILL EXPIRE AT 8 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 301...303... 304...306 AND 308... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from 11 AM to 8 PM MDT Saturday. * WIND...West winds from 15 to 25 gusting to 35 mph. * HUMIDITY...10 to 15 percent. * HAINES...5 to 6 * 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. && $$ WYZ302-305-307-180245- /O.EXP.KCYS.FW.W.0034.000000T0000Z-210918T0200Z/ North Laramie Range/Medicine Bow NF- Sierra Madre Range/Medicine Bow NF-Snowy Range/Medicine Bow NF- 745 PM MDT Fri Sep 17 2021 ...RED FLAG WARNING WILL EXPIRE AT 8 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 302...305 AND 307... The Red Flag Warning will expire at 8 PM this evening. $$ NEZ311-WYZ310-181200- /O.CON.KCYS.FW.W.0035.210918T1700Z-210919T0200Z/ Pine Ridge/Nebraska National Forest/Oglala National Grasslands- Platte/Goshen/Central and Eastern Laramie- 745 PM MDT Fri Sep 17 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM TO 8 PM MDT SATURDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 310 AND 311... * WIND...West winds from 15 to 25 gusting to 35 mph. * HUMIDITY...10 to 15 percent. * HAINES...5 to 6 * 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. && $$ Rubin
608 WWUS85 KCYS 181049 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 449 AM MDT Sat Sep 18 2021 ...RED FLAG WARNING FOR MUCH OF SOUTHEAST WYOMING AND THE FAR NORTHERN NEBRASKA PANHANDLE FROM 11 AM MDT TODAY UNTIL 8 PM MDT THIS EVENING... NEZ311-WYZ301-303-304-306-308-310-190200- /O.CON.KCYS.FW.W.0035.210918T1700Z-210919T0200Z/ Pine Ridge/Nebraska National Forest/Oglala National Grasslands- Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland-Central and Northern Carbon/Ferris-Seminoe- Shirley Mountains-Southwest Carbon County- Upper North Platte River Basin-Laramie Valley/Shirley Basin- Platte/Goshen/Central and Eastern Laramie- 449 AM MDT Sat Sep 18 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 8 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 301, 303, 304, 306, 308, 310, AND 311... * WIND...West winds from 15 to 25 gusting to 35 mph. * HUMIDITY...8 to 12 percent. * HAINES...5 to 6. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ CLH
041 WWUS85 KCYS 181401 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 801 AM MDT Sat Sep 18 2021 ...RED FLAG WARNING FOR MUCH OF SOUTHEAST WYOMING AND THE FAR NORTHERN NEBRASKA PANHANDLE FROM 8 AM MDT TODAY UNTIL 8 PM MDT THIS EVENING... WYZ302-305-307-190200- /O.EXB.KCYS.FW.W.0035.210918T1401Z-210919T0200Z/ North Laramie Range/Medicine Bow NF- Sierra Madre Range/Medicine Bow NF-Snowy Range/Medicine Bow NF- 801 AM MDT Sat Sep 18 2021 ...RED FLAG WARNING IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 302, 305, AND 307... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect until 8 PM MDT this evening. * WIND...West winds from 15 to 25 gusting to 35 mph. * HUMIDITY...8 to 12 percent. * HAINES...5 to 6. * 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. && $$ NEZ311-WYZ301-303-304-306-308-310-190200- /O.EXT.KCYS.FW.W.0035.210918T1401Z-210919T0200Z/ Pine Ridge/Nebraska National Forest/Oglala National Grasslands- Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland-Central and Northern Carbon/Ferris-Seminoe- Shirley Mountains-Southwest Carbon County- Upper North Platte River Basin-Laramie Valley/Shirley Basin- Platte/Goshen/Central and Eastern Laramie- 801 AM MDT Sat Sep 18 2021 ...RED FLAG WARNING NOW IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 301, 303, 304, 306, 308, 310, AND 311... * WIND...West winds from 15 to 25 gusting to 35 mph. * HUMIDITY...8 to 12 percent. * HAINES...5 to 6. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$
532 WWUS85 KCYS 190138 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 738 PM MDT Sat Sep 18 2021 NEZ311-WYZ301>308-310-190245- /O.EXP.KCYS.FW.W.0035.000000T0000Z-210919T0200Z/ Pine Ridge/Nebraska National Forest/Oglala National Grasslands- Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland-North Laramie Range/Medicine Bow NF- Central and Northern Carbon/Ferris-Seminoe-Shirley Mountains- Southwest Carbon County-Sierra Madre Range/Medicine Bow NF- Upper North Platte River Basin-Snowy Range/Medicine Bow NF- Laramie Valley/Shirley Basin- Platte/Goshen/Central and Eastern Laramie- 738 PM MDT Sat Sep 18 2021 ...RED FLAG WARNING WILL EXPIRE AT 8 PM MDT THIS EVENING... Relative humidity this evening has steadily trended higher over the last few hours with gusty winds continuing for fire weather zones 301, 311, and 303. Relative humidities should continue to increase above 30 percent late this evening. Therefore, will allow the current Red Flag Warning for most of southeast Wyoming to expire on time. $$
Nearby
Red Flag Warnings in Wyoming, 2021Red Flag Warnings in Nebraska, 2021Every red flag warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.