Alert archive / Wyoming / Red Flag Warnings in 2018
Red Flag Warning 39, NWS Cheyenne, WY
NWS Cheyenne, WY issued this red flag warning at Sep 21, 2018, 9:44 PM MDT. It took effect at Sep 22, 2018, 11:00 AM MDT. It was in force for 9 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 21, 2018, 9:44 PM MDT (03:44 UTC)
- In effect from
- Sep 22, 2018, 11:00 AM MDT
- Expired
- Sep 22, 2018, 8:00 PM MDT
- In force
- 9 hr
- Issued by
- NWS Cheyenne, WY
The text
As transmitted.
403 WWUS85 KCYS 220344 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 944 PM MDT Fri Sep 21 2018 ...CRITICAL FIRE WEATHER CONDITIONS WILL CONTINUE SATURDAY FOR THE MOUNTAINS AND INTO PORTIONS OF THE WYOMING HIGH PLAINS... WYZ301>309-221145- /O.UPG.KCYS.FW.A.0026.180922T1700Z-180923T0200Z/ /O.NEW.KCYS.FW.W.0039.180922T1700Z-180923T0200Z/ 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-South Laramie Range/Medicine Bow NF- 944 PM MDT Fri Sep 21 2018 ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 8 PM MDT SATURDAY FOR LOW HUMIDITY AND ELEVATED WINDS FOR FIRE WEATHER ZONES 301, 302, 303, 304, 305, 306, 307, 308, AND 309... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from 11 AM to 8 PM MDT Saturday. * AFFECTED AREA...Fire weather zones 303, 304, 305, 306, 307, 308. * WIND...West winds 15 to 25 mph with gusts to 35 mph across the higher terrain of the Sierra Madre, Snowy, and Laramie Mountain Ranges. Winds gusting to 25 to 30 mph will occur at times across portions of the High Plains of Wyoming. * HUMIDITY...5 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. && $$ ALLEN
3 follow-up statements
798 WWUS85 KCYS 221009 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 409 AM MDT Sat Sep 22 2018 ...RED FLAG WARNING THIS AFTERNOON FOR PORTIONS OF SOUTHEAST WYOMING... ...FIRE WEATHER WATCH SUNDAY AFTERNOON FOR SOUTHEAST WYOMING AND THE NORTHERN NEBRASKA PANHANDLE... WYZ301>309-230200- /O.NEW.KCYS.FW.A.0027.180923T1800Z-180924T0200Z/ /O.CON.KCYS.FW.W.0039.180922T1700Z-180923T0200Z/ 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-South Laramie Range/Medicine Bow NF- 409 AM MDT Sat Sep 22 2018 ...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, 302, 303, 304, 305, 306, 307, 308, AND 309... ...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH SUNDAY EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 301, 302, 303, 304, 305, 306, 307, 308, AND 309... The National Weather Service in Cheyenne has issued a Fire Weather Watch, which is in effect from Sunday afternoon through Sunday evening. A Red Flag Warning is also in effect from 11 AM until 8 PM MDT today. * AFFECTED AREA...Fire Weather Zones 303, 304, 305, 306, 307, 308 and 309. * WIND...West 15 to 20 MPH with gusts up to 35 MPH at times during the afternoon. * HUMIDITY...As low as 5 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Avoid burning. 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. && $$ NEZ311-312-WYZ310-230200- /O.NEW.KCYS.FW.A.0027.180923T1800Z-180924T0200Z/ Pine Ridge/Nebraska National Forest/Oglala National Grasslands- Box Butte/South Sioux-Platte/Goshen/Central and Eastern Laramie- 409 AM MDT Sat Sep 22 2018 ...FIRE WEATHER WATCH IN EFFECT FROM SUNDAY AFTERNOON THROUGH SUNDAY EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 310, 311, AND 312... The National Weather Service in Cheyenne has issued a Fire Weather Watch, which is in effect from Sunday afternoon through Sunday evening. * AFFECTED AREA...Fire Weather Zones 310, 311 and 312. * WIND...West to southwest 10 to 20 MPH with occasional gusts up to 30 MPH. * HUMIDITY...10 to 15 percent. * IMPACTS...any fires that develop will likely spread rapidly. Avoid burning. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Fire Weather Watch means that critical fire weather conditions may develop. Listen for later forecasts and possible Red Flag Warnings. && $$
188 WWUS85 KCYS 221715 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 1115 AM MDT Sat Sep 22 2018 ...RED FLAG WARNING THIS AFTERNOON FOR ALL OF SOUTHEAST WYOMING... ...FIRE WEATHER WATCH SUNDAY AFTERNOON FOR SOUTHEAST WYOMING AND THE NORTHERN NEBRASKA PANHANDLE... WYZ310-230200- /O.EXA.KCYS.FW.W.0039.000000T0000Z-180923T0200Z/ /O.CON.KCYS.FW.A.0027.180923T1800Z-180924T0200Z/ Platte/Goshen/Central and Eastern Laramie- 1115 AM MDT Sat Sep 22 2018 ...RED FLAG WARNING IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR LOW HUMIDITY AND GUSTY WINDS FOR FIRE WEATHER ZONE 310... ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON THROUGH SUNDAY EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONE 310... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect until 8 PM MDT this evening. * AFFECTED AREA...Fire Weather Zone 310 * WIND...West to southwest 15 to 20 MPH with occasional gusts up to 30 MPH. * HUMIDITY...10 to 15 percent. * IMPACTS...any fires that develop will likely spread rapidly. Avoid burning. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Fire Weather Watch means that critical fire weather conditions may develop. Listen for later forecasts and possible Red Flag Warnings. && $$ WYZ301>309-230200- /O.CON.KCYS.FW.W.0039.000000T0000Z-180923T0200Z/ /O.CON.KCYS.FW.A.0027.180923T1800Z-180924T0200Z/ 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-South Laramie Range/Medicine Bow NF- 1115 AM MDT Sat Sep 22 2018 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR LOW HUMIDITY AND GUSTY WINDS FOR FIRE WEATHER ZONES 301, 302, 303, 304, 305, 306, 307, 308, AND 309... ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON THROUGH SUNDAY EVENING FOR LOW HUMIDITY AND GUSTY WINDS FOR FIRE WEATHER ZONES 301, 302, 303, 304, 305, 306, 307, 308, AND 309... The National Weather Service in Cheyenne has issued a Fire Weather Watch, which is in effect from Sunday afternoon through Sunday evening. A Red Flag Warning is also in effect from 11 AM until 8 PM MDT today. * AFFECTED AREA...Fire Weather Zones 303, 304, 305, 306, 307, 308 and 309. * WIND...West 15 to 25 MPH with gusts up to 35 MPH at times during the afternoon. * HUMIDITY...As low as 5 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Avoid burning. 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. && $$ NEZ311-312-230200- /O.CON.KCYS.FW.A.0027.180923T1800Z-180924T0200Z/ Pine Ridge/Nebraska National Forest/Oglala National Grasslands- Box Butte/South Sioux- 1115 AM MDT Sat Sep 22 2018 ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON THROUGH SUNDAY EVENING FOR LOW HUMIDITY AND GUSTY WINDS FOR FIRE WEATHER ZONES 311 AND 312... * AFFECTED AREA...Fire Weather Zones 310, 311 and 312. * WIND...West to southwest 10 to 20 MPH with occasional gusts up to 30 MPH. * HUMIDITY...10 to 15 percent. * IMPACTS...any fires that develop will likely spread rapidly. Avoid burning. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Fire Weather Watch means that critical fire weather conditions may develop. Listen for later forecasts and possible Red Flag Warnings. && $$
738 WWUS85 KCYS 222122 RFWCYS URGENT - FIRE WEATHER MESSAGE National Weather Service Cheyenne WY 322 PM MDT Sat Sep 22 2018 ...RED FLAG WARNING THIS AFTERNOON FOR ALL OF SOUTHEAST WYOMING... ...RED FLAG WARNING FOR PORTIONS OF SOUTHEAST WYOMING SUNDAY AFTERNOON WHILE A FIRE WEATHER WATCH CONTINUES FOR ZONE 310 AND THE NORTHERN NEBRASKA PANHANDLE... WYZ301>309-231100- /O.UPG.KCYS.FW.A.0027.180923T1800Z-180924T0200Z/ /O.NEW.KCYS.FW.W.0040.180923T1800Z-180924T0200Z/ /O.CON.KCYS.FW.W.0039.000000T0000Z-180923T0200Z/ 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-South Laramie Range/Medicine Bow NF- 322 PM MDT Sat Sep 22 2018 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR LOW HUMIDITY AND GUSTY WIND SPEEDS FOR FIRE WEATHER ZONES 301, 302, 303, 304, 305, 306, 307, 308, 309 AND 310... ...RED FLAG WARNING IN EFFECT FROM NOON TO 8 PM MDT SUNDAY FOR GUSTY WINDS AND LOW HUMIDITY. FOR FIRE WEATHER ZONES 301, 302, 303, 304, 305, 306, 307, 308, AND 309... The National Weather Service in Cheyenne has issued a Red Flag Warning, which is in effect from noon to 8 PM MDT Sunday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Fire Weather Zones 303, 304, 305, 306, 307, 308 and 309. * WIND...West 15 to 25 MPH with gusts up to 35 MPH at times during the afternoon. * HUMIDITY...As low as 5 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Avoid burning. 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. && $$ WYZ310-231100- /O.CON.KCYS.FW.W.0039.000000T0000Z-180923T0200Z/ /O.CON.KCYS.FW.A.0027.180923T1800Z-180924T0200Z/ Platte/Goshen/Central and Eastern Laramie- 322 PM MDT Sat Sep 22 2018 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR LOW HUMIDITIY AND GUSTY WIND SPEEDS FOR FIRE WEATHER ZONE 310... ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON THROUGH SUNDAY EVENING FOR LOW HUMIDITY AND GUSTY WIND SPEEDS... * FOR FIRE WEATHER ZONE 310... * AFFECTED AREA...Fire Weather Zone 310 * WIND...West to southwest 15 to 20 MPH with occasional gusts up to 30 MPH. * HUMIDITY...10 to 15 percent. * IMPACTS...any fires that develop will likely spread rapidly. Avoid burning. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Fire Weather Watch means that critical fire weather conditions may develop. Listen for later forecasts and possible Red Flag Warnings. && $$ NEZ311-312-231100- /O.CON.KCYS.FW.A.0027.180923T1800Z-180924T0200Z/ Pine Ridge/Nebraska National Forest/Oglala National Grasslands- Box Butte/South Sioux- 322 PM MDT Sat Sep 22 2018 ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM SUNDAY AFTERNOON THROUGH SUNDAY EVENING FOR LOW HUMIDITY AND GUSTY WIND SPEEDS... * FOR FIRE WEATHER ZONES 311 AND 312... * AFFECTED AREA...Fire Weather Zones 310, 311 and 312. * WIND...West to southwest 10 to 20 MPH with occasional gusts up to 30 MPH. * HUMIDITY...10 to 15 percent. * IMPACTS...any fires that develop will likely spread rapidly. Avoid burning. 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 |
|---|---|---|---|---|
| Sep 22, 4:09 AM MDT | Fire Weather Watch | CYS | 24 hr | |
| Sep 22, 3:22 PM MDT | Red Flag Warning | CYS | 29 hr |
Nearby
Red Flag Warnings in Wyoming, 2018Every red flag warning in 2018
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.