Alert archive / Nebraska / Red Flag Warnings in 2021
Red Flag Warning 20, NWS Cheyenne, WY
NWS Cheyenne, WY issued this red flag warning at Aug 22, 2021, 3:34 PM CDT. It took effect at Aug 23, 2021, 1:00 PM CDT. It was in force for 8 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
- Aug 22, 2021, 3:34 PM CDT (20:34 UTC)
- In effect from
- Aug 23, 2021, 1:00 PM CDT
- Expired
- Aug 23, 2021, 9:00 PM CDT
- In force
- 8 hr
- Issued by
- NWS Cheyenne, WY
The text
As transmitted.
052 WWUS85 KCYS 222034 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 234 PM MDT Sun Aug 22 2021 ...CRITICAL FIRE WEATHER CONDITIONS EXPECTED ALONG AND EAST OF INTERSTATE 25 IN SOUTHEAST WYOMING AND WESTERN NEBRASKA WILL REMAIN IN EFFECT TODAY... ...RED FLAG WARNINGS ARE ALSO IN EFFECT FOR FIRE WEATHER ZONE 301 FROM NOON TO 8 PM MONDAY... WYZ301-231100- /O.UPG.KCYS.FW.A.0019.210823T1800Z-210824T0200Z/ /O.NEW.KCYS.FW.W.0020.210823T1800Z-210824T0200Z/ /O.CON.KCYS.FW.W.0019.000000T0000Z-210823T0200Z/ Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland- 234 PM MDT Sun Aug 22 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR LOW HUMIDITY AND GUSTY WINDS FOR FIRE WEATHER ZONE 301... ...RED FLAG WARNING IN EFFECT FROM NOON TO 8 PM MDT MONDAY FOR LOW HUMIDITY AND GUSTY WINDS FOR FIRE WEATHER ZONE 301... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from noon to 8 PM MDT Monday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Fire Weather Zones 301, 310, 311, 312, and 313. * WIND...West 20 to 25 MPH with gusts up to 40 MPH. * HUMIDITY...10 to 15 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. && $$ NEZ311>313-WYZ310-230200- /O.CON.KCYS.FW.W.0019.000000T0000Z-210823T0200Z/ Pine Ridge/Nebraska National Forest/Oglala National Grasslands- Box Butte/South Sioux- Scotts Bluff National Monument/Wildcat Hills- Platte/Goshen/Central and Eastern Laramie- 234 PM MDT Sun Aug 22 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 310, 311, 312, AND 313... * AFFECTED AREA...Fire Weather Zones 301, 310, 311, 312, and 313. * WIND...West 20 to 25 MPH with gusts up to 40 MPH. * HUMIDITY...10 to 15 percent. * IMPACTS...any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$
4 follow-up statements
983 WWUS85 KCYS 230158 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 758 PM MDT Sun Aug 22 2021 ...RED FLAG WARNINGS IN EFFECT FOR FIRE WEATHER ZONE 301 FROM NOON TO 8 PM MONDAY... WYZ301-231000- /O.EXP.KCYS.FW.W.0019.000000T0000Z-210823T0200Z/ /O.CON.KCYS.FW.W.0020.210823T1800Z-210824T0200Z/ Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland- 758 PM MDT Sun Aug 22 2021 ...RED FLAG WARNING IN EFFECT FROM NOON TO 8 PM MDT MONDAY FOR LOW HUMIDITY AND GUSTY WINDS FOR FIRE WEATHER ZONE 301... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from noon to 8 PM MDT Monday. * AFFECTED AREA...Fire Weather Zones 301. * WIND...West 20 to 25 MPH with gusts up to 40 MPH. * HUMIDITY...10 to 15 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. && $$ NEZ311>313-WYZ310-230300- /O.EXP.KCYS.FW.W.0019.000000T0000Z-210823T0200Z/ Pine Ridge/Nebraska National Forest/Oglala National Grasslands- Box Butte/South Sioux- Scotts Bluff National Monument/Wildcat Hills- Platte/Goshen/Central and Eastern Laramie- 758 PM MDT Sun Aug 22 2021 ...RED FLAG WARNING WILL EXPIRE AT 8 PM MDT THIS EVENING FOR FIRE WEATHER ZONES 301, 310, 311, 312, AND 313... Light winds will continue for another hour or two, but have dropped below Red Flag criteria for the evening. $$
833 WWUS85 KCYS 230831 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 231 AM MDT Mon Aug 23 2021 ...RED FLAG WARNINGS IN EFFECT FOR FIRE WEATHER ZONE 301 FROM NOON TO 8 PM MONDAY... ...FIRE WEATHER WATCHES IN EFFECT FOR FIRE WEATHER ZONES 304, 305 AND 307 FROM 11 AM TO 8 PM TUESDAY... NEZ311-240200- /O.EXA.KCYS.FW.W.0020.210823T1800Z-210824T0200Z/ Pine Ridge/Nebraska National Forest/Oglala National Grasslands- 231 AM MDT Mon Aug 23 2021 ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONE 311... 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 Zones 311. * WIND...West 20 to 25 MPH with gusts up to 40 MPH. * HUMIDITY...10 to 15 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. && $$ WYZ301-240200- /O.CON.KCYS.FW.W.0020.210823T1800Z-210824T0200Z/ Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland- 231 AM MDT Mon Aug 23 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONE 301... * AFFECTED AREA...Fire Weather Zones 301. * WIND...West 20 to 25 MPH with gusts up to 40 MPH. * HUMIDITY...10 to 15 percent. * IMPACTS...any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ WYZ304-305-307-240200- /O.NEW.KCYS.FW.A.0020.210824T1700Z-210825T0200Z/ Southwest Carbon County-Sierra Madre Range/Medicine Bow NF- Snowy Range/Medicine Bow NF- 231 AM MDT Mon Aug 23 2021 ...FIRE WEATHER WATCH IN EFFECT FROM TUESDAY MORNING THROUGH TUESDAY EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 304, 305, AND 307... The National Weather Service in Cheyenne has issued a Fire Weather Watch, which is in effect from Tuesday morning through Tuesday evening. * AFFECTED AREA...Fire weather zones 304, 305 and 307. * WIND...Southwest 15 to 20 MPH with gusts up to 30 MPH. * HUMIDITY...10 to 15 percent. * IMPACTS...any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Fire Weather Watch means that critical fire weather conditions may develop. Listen for later forecasts and possible Red Flag Warnings. && $$ WM
753 WWUS85 KCYS 232018 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 218 PM MDT Mon Aug 23 2021 ...RED FLAG WARNINGS IN EFFECT FOR HIGH WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONE 301 FROM NOON TO 8 PM MONDAY... ...RED FLAG WARNINGS IN EFFECT FOR HIGH WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 303, 304, 305 AND 307 FROM 11 AM TO 8 PM TUESDAY... ...FIRE WEATHER WATCHES IN EFFECT FOR HIGH WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 303, 304, 305, 307 AND 308 FROM 11 AM TO 8 PM TUESDAY... WYZ304-305-307-241200- /O.UPG.KCYS.FW.A.0020.210824T1700Z-210825T0200Z/ /O.NEW.KCYS.FW.W.0021.210824T1700Z-210825T0200Z/ /O.NEW.KCYS.FW.A.0021.210825T1700Z-210826T0200Z/ Southwest Carbon County-Sierra Madre Range/Medicine Bow NF- Snowy Range/Medicine Bow NF- 218 PM MDT Mon Aug 23 2021 ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 8 PM MDT TUESDAY FOR HIGH WINDS AND LOW HUMIDITY... ...FIRE WEATHER WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY EVENING FOR HIGH WINDS AND LOW HUMIDITY... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from 11 AM to 8 PM MDT Tuesday. a Fire Weather Watch has also been issued. This Fire Weather Watch is in effect from Wednesday morning through Wednesday evening. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Fire weather zones 304, 305 and 307. * WIND...Southwest 20 to 25 MPH with gusts up to 35 MPH. * HUMIDITY...10 to 15 percent. * IMPACTS...any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. A Fire Weather Watch means that critical fire weather conditions may develop. Listen for later forecasts and possible Red Flag Warnings. && $$ WYZ303-241200- /O.NEW.KCYS.FW.W.0021.210824T1700Z-210825T0200Z/ /O.NEW.KCYS.FW.A.0021.210825T1700Z-210826T0200Z/ Central and Northern Carbon/Ferris-Seminoe-Shirley Mountains- 218 PM MDT Mon Aug 23 2021 ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 8 PM MDT TUESDAY FOR HIGH WINDS AND LOW HUMIDITY... ...FIRE WEATHER WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY EVENING FOR HIGH WINDS AND LOW HUMIDITY... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from 11 AM to 8 PM MDT Tuesday. a Fire Weather Watch has also been issued. This Fire Weather Watch is in effect from Wednesday morning through Wednesday evening. * AFFECTED AREA...Fire weather zone 303. * WIND...Southwest 20 to 25 MPH with gusts up to 35 MPH. * HUMIDITY...10 to 15 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. A Fire Weather Watch means that critical fire weather conditions may develop. Listen for later forecasts and possible Red Flag Warnings. && $$ NEZ311-WYZ301-240200- /O.CON.KCYS.FW.W.0020.000000T0000Z-210824T0200Z/ Pine Ridge/Nebraska National Forest/Oglala National Grasslands- Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland- 218 PM MDT Mon Aug 23 2021 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONE 301... * AFFECTED AREA...Fire Weather Zones 301. * WIND...West 20 to 25 MPH with gusts up to 40 MPH. * HUMIDITY...10 to 15 percent. * IMPACTS...any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ WYZ308-241200- /O.NEW.KCYS.FW.A.0021.210825T1700Z-210826T0200Z/ Laramie Valley/Shirley Basin- 218 PM MDT Mon Aug 23 2021 ...FIRE WEATHER WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY EVENING FOR HIGH WINDS AND LOW HUMIDITY... The National Weather Service in Cheyenne has issued a Fire Weather Watch, which is in effect from Wednesday morning through Wednesday evening. * AFFECTED AREA...Fire weather zone 308. * WIND...Southwest 20 to 25 MPH with gusts up to 35 MPH. * HUMIDITY...10 to 15 percent. * IMPACTS...any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Fire Weather Watch means that critical fire weather conditions may develop. Listen for later forecasts and possible Red Flag Warnings. && $$
621 WWUS85 KCYS 240201 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 801 PM MDT Mon Aug 23 2021 ...RED FLAG WARNINGS IN EFFECT FOR HIGH WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 303, 304, 305 AND 307 FROM 11 AM TO 8 PM TUESDAY... ...FIRE WEATHER WATCHES IN EFFECT FOR HIGH WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 303, 304, 305, 307 AND 308 FROM 11 AM TO 8 PM TUESDAY... NEZ311-WYZ301-240315- /O.EXP.KCYS.FW.W.0020.000000T0000Z-210824T0200Z/ Pine Ridge/Nebraska National Forest/Oglala National Grasslands- Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland- 801 PM MDT Mon Aug 23 2021 ...RED FLAG WARNING WILL EXPIRE AT 8 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONE 301... Winds are easing and humidity has climbed above critical levels. The Red Flag Warnings for this evening have been allowed to expire on time. $$ WYZ303>305-307-241200- /O.CON.KCYS.FW.W.0021.210824T1700Z-210825T0200Z/ /O.CON.KCYS.FW.A.0021.210825T1700Z-210826T0200Z/ Central and Northern Carbon/Ferris-Seminoe-Shirley Mountains- Southwest Carbon County-Sierra Madre Range/Medicine Bow NF- Snowy Range/Medicine Bow NF- 801 PM MDT Mon Aug 23 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM TO 8 PM MDT TUESDAY FOR HIGH WINDS AND LOW HUMIDITY... ...FIRE WEATHER WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY EVENING FOR HIGH WINDS AND LOW HUMIDITY... * AFFECTED AREA...Fire weather zones 303, 304, 305 and 307. * WIND...Southwest 20 to 25 MPH with gusts up to 35 MPH. * HUMIDITY...10 to 15 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. A Fire Weather Watch means that critical fire weather conditions may develop. Listen for later forecasts and possible Red Flag Warnings. && $$ WYZ308-241200- /O.CON.KCYS.FW.A.0021.210825T1700Z-210826T0200Z/ Laramie Valley/Shirley Basin- 801 PM MDT Mon Aug 23 2021 ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY EVENING FOR HIGH WINDS AND LOW HUMIDITY... * AFFECTED AREA...Fire weather zone 308. * WIND...Southwest 20 to 25 MPH with gusts up to 35 MPH. * HUMIDITY...10 to 15 percent. * IMPACTS...any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Fire Weather Watch means that critical fire weather conditions may develop. Listen for later forecasts and possible Red Flag Warnings. && $$
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 21, 9:58 PM CDT | Red Flag Warning | CYS | 23 hr | |
| Aug 22, 3:35 AM CDT | Fire Weather Watch | CYS | 12 hr |
Nearby
Red Flag Warnings in Nebraska, 2021Red Flag Warnings in Wyoming, 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.