Alert archive / Wyoming / Red Flag Warnings in 2012
Red Flag Warning 52, NWS Cheyenne, WY
NWS Cheyenne, WY issued this red flag warning at Aug 21, 2012, 4:16 PM MDT. It took effect at Aug 22, 2012, 10:00 AM MDT. 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 21, 2012, 4:16 PM MDT (22:16 UTC)
- In effect from
- Aug 22, 2012, 10:00 AM MDT
- Expired
- Aug 22, 2012, 6:00 PM MDT
- In force
- 8 hr
- Issued by
- NWS Cheyenne, WY
The text
As transmitted, in the capitals the NWS used until 2016.
159 WWUS85 KCYS 212216 RFWCYS URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 416 PM MDT TUE AUG 21 2012 ...RED FLAG WARNING FOR WYOMING FIRE ZONES ALONG AND WEST OF THE LARAMIE RANGE WEDNESDAY FOR GUSTY WINDS AND LOW HUMIDITIES... ...FIRE WEATHER WATCH FOR FIRE WEATHER ZONES 310...312 AND 313 FOR GUSTY WINDS AND LOW HUMIDITIES WEDNESDAY... .AN UPPER LEVEL DISTURBANCE MOVING ACROSS THE NORTHERN ROCKIES ON WEDNESDAY WILL USHER IN VERY DRY DESERT AIR AND PRODUCE GUSTY WEST WINDS FROM MID MORNING THROUGH THE AFTERNOON. CRITICAL FIRE WEATHER CONDITIONS LOOK LIKELY FOR AREAS ALONG AND WEST OF THE LARAMIE RANGE AND RED FLAG WARNINGS HAVE BEEN POSTED. THIS IS THE AREA THAT LOOKS MOST FAVORABLE FOR GUSTY WINDS AND LOW HUMIDITIES. THERE IS SOME POTENTIAL FOR CRITICAL CONDITIONS TO BE MET DURING THIS TIME FOR LARAMIE AND PLATTE COUNTIES IN ZONE 310 AS WELL AS THE SOUTHERN PANHANDLE FROM MID MORNING THROUGH THE AFTERNOON. FIRE WEATHER WATCHES ARE IN EFFECT FOR FIRE WEATHER ZONES 310...312 AND 313. IN ADDITION...ISOLATED THUNDERSTORMS ARE EXPECTED TO OCCUR IN THE LATE AFTERNOON MAINLY ALONG THE LARAMIE RANGE AND FOOTHILLS OF THE SNOWY AND SIERRA MADRE RANGES. THESE STORMS WOULD LIKELY PRODUCE LITTLE RAINFALL BUT A FEW LIGHTNING STRIKES ARE POSSIBLE FROM THEM. WYZ302-303-308-309-221200- /O.UPG.KCYS.FW.A.0040.120822T1800Z-120823T0000Z/ /O.NEW.KCYS.FW.W.0052.120822T1600Z-120823T0000Z/ NORTH LARAMIE RANGE/MEDICINE BOW NF- CENTRAL AND NORTHERN CARBON/FERRIS-SEMINOE-SHIRLEY MOUNTAINS- LARAMIE VALLEY/SHIRLEY BASIN-SOUTH LARAMIE RANGE/MEDICINE BOW NF- 416 PM MDT TUE AUG 21 2012 ...RED FLAG WARNING IN EFFECT FROM 10 AM TO 6 PM MDT WEDNESDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 302... 303...308 AND 309... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A RED FLAG WARNING FOR WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN EFFECT FROM 10 AM TO 6 PM MDT WEDNESDAY. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * AFFECTED AREA...FIRE WEATHER ZONE 302 NORTH LARAMIE RANGE/MEDICINE BOW NF...FIRE WEATHER ZONE 303 CENTRAL AND NORTHERN CARBON/FERRIS-SEMINOE-SHIRLEY MOUNTAINS...FIRE WEATHER ZONE 308 LARAMIE VALLEY/SHIRLEY BASIN AND FIRE WEATHER ZONE 309 SOUTH LARAMIE RANGE/MEDICINE BOW NF. * WINDS...WEST 15 TO 25 MPH WITH GUSTS UP TO 40 MPH. * RELATIVE HUMIDITY...AS LOW AS 12 PERCENT. * THUNDERSTORMS...ISOLATED THUNDERSTORMS WITH OCCASIONAL LIGHTNING...VERY LITTLE RAINFALL AND GUSTY ERRATIC DOWNDRAFT WINDS UP TO 40 MPH ARE POSSIBLE MAINLY ALONG THE LARAMIE RANGE AND FOOTHILLS OF THE SNOWY AND SIERRA MADRE RANGES. * IMPACTS...THE COMBINATION OF DRY HUMIDITIES...GUSTY WEST WINDS...AND ISOLATED THUNDERSTORMS COULD PRODUCE CRITICAL FIRE WEATHER CONDITIONS ON WEDNESDAY. THIS IS MAINLY FOR AREAS ALONG AND WEST OF THE INTERSTATE 25 CORRIDOR. THERE WILL BE AN INCREASED THREAT FOR RAPID FIRE SPREAD AS A RESULT. 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 WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ WYZ304-306-221200- /O.NEW.KCYS.FW.W.0052.120822T1600Z-120823T0000Z/ SOUTHWEST CARBON-UPPER NORTH PLATTE RIVER BASIN- 416 PM MDT TUE AUG 21 2012 ...RED FLAG WARNING IN EFFECT FROM 10 AM TO 6 PM MDT WEDNESDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 304 AND 306... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A RED FLAG WARNING FOR WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN EFFECT FROM 10 AM TO 6 PM MDT WEDNESDAY. * AFFECTED AREA...FIRE WEATHER ZONE 304 SOUTHWEST CARBON AND FIRE WEATHER ZONE 306 UPPER NORTH PLATTE RIVER BASIN. * WINDS...WEST 10 TO 20 MPH WITH GUSTS UP TO 35 MPH. * RELATIVE HUMIDITY...AS LOW AS 15 PERCENT. * IMPACTS...THE COMBINATION OF DRY HUMIDITIES...GUSTY WEST WINDS...AND ISOLATED THUNDERSTORMS COULD PRODUCE CRITICAL FIRE WEATHER CONDITIONS ON WEDNESDAY. THERE WILL BE AN INCREASED THREAT FOR RAPID FIRE SPREAD AS A RESULT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ NEZ312-313-221200- /O.EXB.KCYS.FW.A.0040.120822T1600Z-120823T0000Z/ BOX BUTTE/SOUTH SIOUX- SCOTTS BLUFF NATIONAL MONUMENT/WILDCAT HILLS- 416 PM MDT TUE AUG 21 2012 ...FIRE WEATHER WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY AFTERNOON FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 312 AND 313... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A FIRE WEATHER WATCH FOR WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY AFTERNOON. * AFFECTED AREA...FIRE WEATHER ZONE 312 BOX BUTTE/SOUTH SIOUX AND FIRE WEATHER ZONE 313 SCOTTS BLUFF NATIONAL MONUMENT/WILDCAT HILLS. * WINDS...SOUTHWEST 10 TO 20 MPH WITH GUSTS UP TO 30 MPH. * RELATIVE HUMIDITY...AS LOW AS 12 PERCENT. * IMPACTS...THE COMBINATION OF DRY HUMIDITIES AND GUSTY SOUTHWEST WINDS COULD PRODUCE CRITICAL FIRE WEATHER CONDITIONS ON WEDNESDAY. THERE WILL BE AN INCREASED THREAT FOR RAPID FIRE SPREAD AS A RESULT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE FORECAST TO OCCUR. LISTEN FOR LATER FORECASTS AND POSSIBLE RED FLAG WARNINGS. && $$ WYZ310-221200- /O.EXT.KCYS.FW.A.0040.120822T1600Z-120823T0000Z/ PLATTE/GOSHEN/CENTRAL AND EASTERN LARAMIE- 416 PM MDT TUE AUG 21 2012 ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM WEDNESDAY MORNING THROUGH WEDNESDAY AFTERNOON FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 310... * AFFECTED AREA...FIRE WEATHER ZONE 310 PLATTE/GOSHEN/CENTRAL AND EASTERN LARAMIE. * WINDS...NORTHWEST 10 TO 15 MPH WITH GUSTS UP TO 30 MPH. * RELATIVE HUMIDITY...AS LOW AS 11 PERCENT. * THUNDERSTORMS...ISOLATED THUNDERSTORMS WITH OCCASIONAL LIGHTNING...VERY LITTLE RAINFALL AND GUSTY ERRATIC DOWNDRAFT WINDS UP TO 40 MPH ARE POSSIBLE MAINLY ALONG THE LARAMIE RANGE AND FOOTHILLS OF THE SNOWY AND SIERRA MADRE RANGES. * IMPACTS...THE COMBINATION OF DRY HUMIDITIES...GUSTY WEST WINDS...AND ISOLATED THUNDERSTORMS COULD PRODUCE CRITICAL FIRE WEATHER CONDITIONS ON WEDNESDAY. THIS IS MAINLY FOR AREAS ALONG AND WEST OF THE INTERSTATE 25 CORRIDOR. THERE WILL BE AN INCREASED THREAT FOR RAPID FIRE SPREAD AS A RESULT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE FORECAST TO OCCUR. LISTEN FOR LATER FORECASTS AND POSSIBLE RED FLAG WARNINGS. && $$
3 follow-up statements
265 WWUS85 KCYS 221131 RFWCYS URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 531 AM MDT WED AUG 22 2012 ...RED FLAG WARNING FOR MUCH OF SOUTHEAST WYOMING AND PORTIONS OF THE NEBRASKA PANHANDLE TODAY FOR GUSTY WINDS AND LOW HUMIDITIES... .AN UPPER LEVEL DISTURBANCE MOVING ACROSS THE NORTHERN ROCKIES TODAY WILL PRODUCE GUSTY WEST TO NORTHWEST WINDS FROM MID MORNING THROUGH THE AFTERNOON ACROSS WYOMING...AND SOUTHWEST WINDS ACROSS SOUTHERN AND EASTERN PORTIONS OF THE NEBRASKA PANHANDLE. CRITICAL FIRE WEATHER CONDITIONS LOOK LIKELY FOR THESE AREAS AS HUMIDITIES LOOK TO DROP INTO THE LOW TO MID TEENS. THE EXCEPTION WILL BE IN AREAS ALONG THE WYOMING AND NEBRASKA BORDER WHERE WINDS WILL BE LESS. IN ADDITION...ISOLATED THUNDERSTORMS ARE EXPECTED TO OCCUR IN THE LATE AFTERNOON MAINLY ALONG THE LARAMIE RANGE AND FOOTHILLS OF THE SNOWY AND SIERRA MADRE RANGES. THESE STORMS WOULD LIKELY PRODUCE LITTLE RAINFALL WITH A FEW LIGHTNING STRIKES. NEZ312-313-WYZ310-222200- /O.UPG.KCYS.FW.A.0040.120822T1600Z-120823T0000Z/ /O.EXA.KCYS.FW.W.0052.120822T1600Z-120823T0000Z/ BOX BUTTE/SOUTH SIOUX- SCOTTS BLUFF NATIONAL MONUMENT/WILDCAT HILLS- PLATTE/GOSHEN/CENTRAL AND EASTERN LARAMIE- 531 AM MDT WED AUG 22 2012 ...RED FLAG WARNING IN EFFECT FROM 10 AM THIS MORNING TO 6 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 310...312 AND 313... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A RED FLAG WARNING FOR WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN EFFECT FROM 10 AM THIS MORNING TO 6 PM MDT THIS EVENING. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * AFFECTED AREA...FIRE WEATHER ZONE 310 PLATTE/GOSHEN/CENTRAL AND EASTERN LARAMIE...FIRE WEATHER ZONE 312 BOX BUTTE/SOUTH SIOUX AND FIRE WEATHER ZONE 313 SCOTTS BLUFF NATIONAL MONUMENT/WILDCAT HILLS. * WINDS...WEST TO NORTHWEST WINDS AT 10 TO 20 MPH WITH GUSTS UP TO 30 MPH IN WYOMING...WITH SOUTHWEST WINDS AT SIMILAR SPEEDS ACROSS THE PANHANDLE. WINDS LOOK LESS ALONG THE WYOMING AND NEBRASKA BORDER AND MAY NOT REACH CRITICAL THRESHOLDS. * RELATIVE HUMIDITY...AS LOW AS 11 PERCENT. * IMPACTS...THE COMBINATION OF DRY HUMIDITIES AND GUSTY WINDS LOOK TO PRODUCE CRITICAL FIRE WEATHER CONDITIONS LATE THIS MORNING THROUGH THE AFTERNOON. THERE WILL BE AN INCREASED THREAT FOR RAPID FIRE SPREAD AS A RESULT. 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 WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ WYZ301-222200- /O.EXA.KCYS.FW.W.0052.120822T1600Z-120823T0000Z/ NIOBRARA/LOWER ELEVATIONS OF CONVERSE/THUNDER BASIN NATIONAL GRASSLAND- 531 AM MDT WED AUG 22 2012 ...RED FLAG WARNING IN EFFECT FROM 10 AM THIS MORNING TO 6 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 301... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A RED FLAG WARNING FOR WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN EFFECT FROM 10 AM THIS MORNING TO 6 PM MDT THIS EVENING. * AFFECTED AREA...FIRE WEATHER ZONE 301 NIOBRARA/LOWER ELEVATIONS OF CONVERSE/THUNDER BASIN NATIONAL GRASSLAND. * WINDS...NORTHWEST 15 TO 20 MPH WITH GUSTS UP TO 30 MPH. * RELATIVE HUMIDITY...AS LOW AS 10 PERCENT. * IMPACTS...THE COMBINATION OF DRY HUMIDITIES AND GUSTY NORTHWEST WINDS SHOULD PRODUCE CRITICAL FIRE WEATHER CONDITIONS LATE THIS MORNING THROUGH THE AFTERNOON. THERE WILL BE AN INCREASED THREAT FOR RAPID FIRE SPREAD AS A RESULT. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ WYZ302>304-306-308-309-222200- /O.CON.KCYS.FW.W.0052.120822T1600Z-120823T0000Z/ NORTH LARAMIE RANGE/MEDICINE BOW NF- CENTRAL AND NORTHERN CARBON/FERRIS-SEMINOE-SHIRLEY MOUNTAINS- SOUTHWEST CARBON-UPPER NORTH PLATTE RIVER BASIN- LARAMIE VALLEY/SHIRLEY BASIN-SOUTH LARAMIE RANGE/MEDICINE BOW NF- 531 AM MDT WED AUG 22 2012 ...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 6 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 304 AND 306... * AFFECTED AREA...FIRE WEATHER ZONE 302 NORTH LARAMIE RANGE/MEDICINE BOW NF...FIRE WEATHER ZONE 303 CENTRAL AND NORTHERN CARBON/FERRIS-SEMINOE-SHIRLEY MOUNTAINS...FIRE WEATHER ZONE 304 SOUTHWEST CARBON...FIRE WEATHER ZONE 306 UPPER NORTH PLATTE RIVER BASIN...FIRE WEATHER ZONE 308 LARAMIE VALLEY/SHIRLEY BASIN AND FIRE WEATHER ZONE 309 SOUTH LARAMIE RANGE/MEDICINE BOW NF. * WINDS...WEST 10 TO 20 MPH WITH GUSTS UP TO 35 MPH. * RELATIVE HUMIDITY...AS LOW AS 13 PERCENT. * THUNDERSTORMS...ISOLATED THUNDERSTORMS WITH OCCASIONAL LIGHTNING...VERY LITTLE RAINFALL AND GUSTY ERRATIC DOWNDRAFT WINDS UP TO 40 MPH ARE POSSIBLE MAINLY ALONG THE LARAMIE RANGE AND FOOTHILLS OF THE SNOWY AND SIERRA MADRE RANGES. * IMPACTS...THE COMBINATION OF DRY HUMIDITIES...GUSTY WEST WINDS...AND ISOLATED THUNDERSTORMS SHOULD PRODUCE CRITICAL FIRE WEATHER CONDITIONS LATE THIS MORNING THROUGH THE AFTERNOON. THERE WILL BE AN INCREASED THREAT FOR RAPID FIRE SPREAD AS A RESULT. 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 WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$
156 WWUS85 KCYS 222201 RFWCYS URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 401 PM MDT WED AUG 22 2012 ...RED FLAG WARNING FOR MUCH OF SOUTHEAST WYOMING AND PORTIONS OF THE NEBRASKA PANHANDLE TODAY FOR GUSTY WINDS AND LOW HUMIDITIES... .AN UPPER LEVEL DISTURBANCE MOVING ACROSS THE NORTHERN ROCKIES TODAY WILL PRODUCE GUSTY WEST TO NORTHWEST WINDS THROUGH THE AFTERNOON ACROSS WYOMING...AND SOUTHWEST WINDS ACROSS SOUTHERN AND EASTERN PORTIONS OF THE NEBRASKA PANHANDLE. CRITICAL FIRE WEATHER CONDITIONS LOOK LIKELY FOR THESE AREAS AS HUMIDITIES LOOK TO DROP INTO THE LOW TO MID TEENS. THE EXCEPTION WILL BE IN AREAS ALONG THE WYOMING AND NEBRASKA BORDER WHERE WINDS WILL BE LESS. IN ADDITION...ISOLATED THUNDERSTORMS ARE EXPECTED TO OCCUR IN THE LATE AFTERNOON MAINLY ALONG THE LARAMIE RANGE AND FOOTHILLS OF THE SNOWY AND SIERRA MADRE RANGES. THESE STORMS WOULD LIKELY PRODUCE LITTLE RAINFALL WITH A FEW LIGHTNING STRIKES. NEZ312-313-WYZ301>304-306-308>310-230000- /O.CON.KCYS.FW.W.0052.000000T0000Z-120823T0000Z/ BOX BUTTE/SOUTH SIOUX- SCOTTS BLUFF NATIONAL MONUMENT/WILDCAT HILLS- 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-UPPER NORTH PLATTE RIVER BASIN- LARAMIE VALLEY/SHIRLEY BASIN-SOUTH LARAMIE RANGE/MEDICINE BOW NF- PLATTE/GOSHEN/CENTRAL AND EASTERN LARAMIE- 401 PM MDT WED AUG 22 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY AND GUSTY WINDS FOR MOST OF SOUTHEAST WYOMING AND WESTERN NEBRASKA... * AFFECTED AREA...FIRE WEATHER ZONE 301 NIOBRARA/LOWER ELEVATIONS OF CONVERSE/THUNDER BASIN NATIONAL GRASSLAND...FIRE WEATHER ZONE 302 NORTH LARAMIE RANGE/MEDICINE BOW NF...FIRE WEATHER ZONE 303 CENTRAL AND NORTHERN CARBON/FERRIS-SEMINOE- SHIRLEY MOUNTAINS...FIRE WEATHER ZONE 304 SOUTHWEST CARBON... FIRE WEATHER ZONE 306 UPPER NORTH PLATTE RIVER BASIN...FIRE WEATHER ZONE 308 LARAMIE VALLEY/SHIRLEY BASIN...FIRE WEATHER ZONE 309 SOUTH LARAMIE RANGE/MEDICINE BOW NF...FIRE WEATHER ZONE 310 PLATTE/GOSHEN/CENTRAL AND EASTERN LARAMIE...FIRE WEATHER ZONE 312 BOX BUTTE/SOUTH SIOUX AND FIRE WEATHER ZONE 313 SCOTTS BLUFF NATIONAL MONUMENT/WILDCAT HILLS. * WINDS...NORTHWEST 15 TO 20 MPH WITH GUSTS UP TO 30 MPH. * RELATIVE HUMIDITY...AS LOW AS 14 PERCENT. * IMPACTS...THE COMBINATION OF LOW HUMIDITIES...GUSTY WEST WINDS...AND DRY FUELS SHOULD PRODUCE CRITICAL FIRE WEATHER CONDITIONS LATE THIS MORNING THROUGH THE AFTERNOON. THERE WILL BE AN INCREASED THREAT FOR RAPID FIRE SPREAD AS A RESULT. 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 WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ TT
601 WWUS85 KCYS 230007 RFWCYS URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 607 PM MDT WED AUG 22 2012 NEZ312-313-WYZ301>304-306-308>310-230115- /O.EXP.KCYS.FW.W.0052.000000T0000Z-120823T0000Z/ BOX BUTTE/SOUTH SIOUX- SCOTTS BLUFF NATIONAL MONUMENT/WILDCAT HILLS- 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-UPPER NORTH PLATTE RIVER BASIN- LARAMIE VALLEY/SHIRLEY BASIN-SOUTH LARAMIE RANGE/MEDICINE BOW NF- PLATTE/GOSHEN/CENTRAL AND EASTERN LARAMIE- 607 PM MDT WED AUG 22 2012 ...RED FLAG WARNING HAS EXPIRED FOR WIND AND LOW RELATIVE HUMIDITY FOR MOST OF SOUTHEAST WYOMING AND WESTERN NEBRASKA... WINDS HAVE DECREASED IN INTENSITY THIS EVENING ACROSS THE AREA WITH RELATIVE HUMIDITIES INCREASING TO BETWEEN 14 TO 25 PERCENT. THEREFORE...HAVE ALLOWED THE RED FLAG WARNING TO EXPIRE WITH HUMIDITIES EXPECTED TO INCREASE OVER 30 PERCENT IN THE NEXT HOUR OR TWO. $$ TT
The office that day
Everything else NWS Cheyenne, WY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 21, 3:46 AM MDT | Fire Weather Watch | CYS | 26 hr |
Nearby
Red Flag Warnings in Wyoming, 2012Red Flag Warnings in Nebraska, 2012Every red flag warning in 2012
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.