Alert archive / Wyoming / Red Flag Warnings in 2021
Red Flag Warning 29, NWS Cheyenne, WY
NWS Cheyenne, WY issued this red flag warning at Sep 8, 2021, 6:02 PM MDT. It took effect at Sep 9, 2021, 10:00 AM MDT. It was in force for 10 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 8, 2021, 6:02 PM MDT (00:02 UTC)
- In effect from
- Sep 9, 2021, 10:00 AM MDT
- Expired
- Sep 9, 2021, 8:00 PM MDT
- In force
- 10 hr
- Issued by
- NWS Cheyenne, WY
The text
As transmitted.
401 WWUS85 KCYS 090002 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 602 PM MDT Wed Sep 8 2021 ...RED FLAG WARNING IN EFFECT FOR GUSTY WINDS AND LOW HUMIDITY THURSDAY FOR FWZ 301 AND 311... ...FIRE WEATHER WATCH FOR FRIDAY FOR GUSTY WINDS AND LOW HUMIDITY FWZ 301...302...303 AND NORTHERN 308... WYZ301-091200- /O.UPG.KCYS.FW.A.0027.210909T1600Z-210910T0200Z/ /O.NEW.KCYS.FW.W.0029.210909T1600Z-210910T0200Z/ /O.NEW.KCYS.FW.A.0028.210910T1600Z-210911T0200Z/ Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland- 602 PM MDT Wed Sep 8 2021 ...RED FLAG WARNING IN EFFECT FROM 10 AM TO 8 PM MDT THURSDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONE 301... ...FIRE WEATHER WATCH IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONE 301... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from 10 AM to 8 PM MDT Thursday. a Fire Weather Watch has also been issued. This Fire Weather Watch is in effect from Friday morning through Friday evening. * WIND...West to northwest winds around 15 MPH with occasional gusts 25 to 30 MPH. Stronger...more widespread winds expected Friday with gusts to 35 mph possible. * HUMIDITY...8 to 12 percent. * HAINES...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 are expected to develop with high certainty. 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. && $$ NEZ311-091200- /O.UPG.KCYS.FW.A.0027.210909T1600Z-210910T0200Z/ /O.NEW.KCYS.FW.W.0029.210909T1600Z-210910T0200Z/ Pine Ridge/Nebraska National Forest/Oglala National Grasslands- 602 PM MDT Wed Sep 8 2021 ...RED FLAG WARNING IN EFFECT FROM 10 AM TO 8 PM MDT THURSDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONE 311... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from 10 AM to 8 PM MDT Thursday. The Fire Weather Watch is no longer in effect. * WIND...West to northwest winds around 15 to 20 MPH with occasional gusts 30 to 35 MPH. * HUMIDITY...10 to 15 percent. * HAINES...6. * IMPACTS...any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or are expected to develop with high certainty. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ WYZ302-303-308-091200- /O.NEW.KCYS.FW.A.0028.210910T1600Z-210911T0200Z/ North Laramie Range/Medicine Bow NF- Central and Northern Carbon/Ferris-Seminoe-Shirley Mountains- Laramie Valley/Shirley Basin- 602 PM MDT Wed Sep 8 2021 ...FIRE WEATHER WATCH IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 302, 303, AND 308... The National Weather Service in Cheyenne has issued a Fire Weather Watch, which is in effect from Friday morning through Friday evening. * AFFECTED AREA...Fire weather zone 302...303 and Northern 308. * WIND...West to northwest winds around 15 to 20 MPH with occasional gusts 30 to 35 MPH. * HUMIDITY...10 to 15 percent. * HAINES...6. * IMPACTS...any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * 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. && $$
2 follow-up statements
532 WWUS85 KCYS 091103 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 503 AM MDT Thu Sep 9 2021 ...RED FLAG WARNING IN EFFECT FOR GUSTY WINDS AND LOW HUMIDITY THURSDAY FOR FWZ 301 AND 311... ...FIRE WEATHER WATCH FOR FRIDAY FOR GUSTY WINDS AND LOW HUMIDITY FWZ 301...302...303 AND NORTHERN 308... WYZ301-100000- /O.CON.KCYS.FW.W.0029.210909T1600Z-210910T0200Z/ /O.CON.KCYS.FW.A.0028.210910T1600Z-210911T0200Z/ Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland- 503 AM MDT Thu Sep 9 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 8 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONE 301... ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONE 301... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from 10 AM to 8 PM MDT Thursday. a Fire Weather Watch has also been issued. This Fire Weather Watch is in effect from Friday morning through Friday evening. * WIND...West to northwest winds around 15 MPH with occasional gusts 25 to 30 MPH. Stronger...more widespread winds expected Friday with gusts to 35 mph possible. * HUMIDITY...8 to 12 percent. * HAINES...6. * IMPACTS...any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now....or are expected to develop with high certainty. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. A Fire Weather Watch means that critical fire weather conditions may develop. Listen for later forecasts and possible Red Flag Warnings. && $$ NEZ311-100000- /O.CON.KCYS.FW.W.0029.210909T1600Z-210910T0200Z/ Pine Ridge/Nebraska National Forest/Oglala National Grasslands- 503 AM MDT Thu Sep 9 2021 ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 8 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONE 311... * WIND...West to northwest winds around 15 to 20 MPH with occasional gusts 30 to 35 MPH. * HUMIDITY...10 to 15 percent. * HAINES...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 are expected to develop with high certainty. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ WYZ302-303-308-100000- /O.CON.KCYS.FW.A.0028.210910T1600Z-210911T0200Z/ North Laramie Range/Medicine Bow NF- Central and Northern Carbon/Ferris-Seminoe-Shirley Mountains- Laramie Valley/Shirley Basin- 503 AM MDT Thu Sep 9 2021 ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 302, 303, AND 308... * AFFECTED AREA...Fire weather zone 302...303 and Northern 308. * WIND...West to northwest winds around 15 to 20 MPH with occasional gusts 30 to 35 MPH. * HUMIDITY...10 to 15 percent. * HAINES...6. * IMPACTS...any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * IMPACTS...any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Fire Weather Watch means that critical fire weather conditions may develop. Listen for later forecasts and possible Red Flag Warnings. && $$
548 WWUS85 KCYS 100155 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 755 PM MDT Thu Sep 9 2021 ...RED FLAG WARNING IN EFFECT FOR GUSTY WINDS AND LOW HUMIDITY FRIDAY FOR FWZ 301...302...303 AND NORTHERN 308... WYZ301-101200- /O.EXP.KCYS.FW.W.0029.000000T0000Z-210910T0200Z/ /O.UPG.KCYS.FW.A.0028.210910T1600Z-210911T0200Z/ /O.NEW.KCYS.FW.W.0030.210910T1600Z-210911T0200Z/ Niobrara/Lower Elevations of Converse/Thunder Basin National Grassland- 755 PM MDT Thu Sep 9 2021 ...RED FLAG WARNING IN EFFECT FROM 10 AM TO 8 PM MDT FRIDAY FOR GUSTY WINDS AND LOW HUMIDITY... ...RED FLAG WARNING WILL EXPIRE AT 8 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONE 301... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from 10 AM to 8 PM MDT Friday. The Fire Weather Watch is no longer in effect. * WIND...West to northwest winds 15 to 25 mph with gusts to 35 mph. * HUMIDITY...8 to 12 percent. * HAINES...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 are expected to develop with high certainty. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior. && $$ NEZ311-100300- /O.EXP.KCYS.FW.W.0029.000000T0000Z-210910T0200Z/ Pine Ridge/Nebraska National Forest/Oglala National Grasslands- 755 PM MDT Thu Sep 9 2021 ...RED FLAG WARNING WILL EXPIRE AT 8 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONE 311... Winds have eased and are no longer expected to be critical. Evening humidity is slowly recovering. Thus the Red Flag Warning will be allowed to expire on time at 8 PM. $$ WYZ302-303-308-101200- /O.UPG.KCYS.FW.A.0028.210910T1600Z-210911T0200Z/ /O.NEW.KCYS.FW.W.0030.210910T1600Z-210911T0200Z/ North Laramie Range/Medicine Bow NF- Central and Northern Carbon/Ferris-Seminoe-Shirley Mountains- Laramie Valley/Shirley Basin- 755 PM MDT Thu Sep 9 2021 ...RED FLAG WARNING IN EFFECT FROM 10 AM TO 8 PM MDT FRIDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR FWZ 302...303 AND NORTHERN 308... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from 10 AM to 8 PM MDT Friday. The Fire Weather Watch is no longer in effect. * WIND...West to northwest winds around 15 to 20 MPH with occasional gusts 30 to 35 MPH. * HUMIDITY...10 to 15 percent. * HAINES...6. * IMPACTS...any fires that develop will likely spread rapidly. Outdoor burning is not recommended. * 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. && $$
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 8, 6:02 PM MDT | Fire Weather Watch | CYS | 26 hr |
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.