Alert archive / Wyoming / Red Flag Warnings in 2012
Red Flag Warning 66, NWS Cheyenne, WY
NWS Cheyenne, WY issued this red flag warning at Sep 15, 2012, 8:35 PM MDT. It took effect at Sep 16, 2012, 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 15, 2012, 8:35 PM MDT (02:35 UTC)
- In effect from
- Sep 16, 2012, 11:00 AM MDT
- Expired
- Sep 16, 2012, 8:00 PM MDT
- In force
- 9 hr
- Issued by
- NWS Cheyenne, WY
The text
As transmitted, in the capitals the NWS used until 2016.
781 WWUS85 KCYS 160235 RFWCYS URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 835 PM MDT SAT SEP 15 2012 ...CRITICAL FIRE WEATHER CONDITIONS RETURN TO THE AREA ON SUNDAY... .VERY WARM...VERY DRY AND BREEZY CONDITIONS WILL RE-DEVELOP ON SUNDAY AHEAD OF A LATE DAY COLD FRONT. HUMIDITY RECOVERIES WILL BE VERY POOR OVERNIGHT...WHICH WILL BE THE CATALYST TO VERY DRY RELATIVE HUMIDITIES ON SUNDAY. WESTERLY GUSTS OF 25 TO 30 MPH ARE EXPECTED AHEAD OF THE COLD FRONT WILL BECOME NORTH OR NORTHEASTERLY IN ITS WAKE. WYZ303>310-161200- /O.CAN.KCYS.FW.W.0065.000000T0000Z-120916T0300Z/ /O.UPG.KCYS.FW.A.0052.120916T1700Z-120917T0200Z/ /O.NEW.KCYS.FW.W.0066.120916T1700Z-120917T0200Z/ CENTRAL AND NORTHERN CARBON/FERRIS-SEMINOE-SHIRLEY MOUNTAINS- SOUTHWEST CARBON-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- PLATTE/GOSHEN/CENTRAL AND EASTERN LARAMIE- 835 PM MDT SAT SEP 15 2012 ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 8 PM MDT SUNDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 303...304... 305...306...307...308...309 AND 310... ...RED FLAG WARNING IS CANCELLED FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 303...304...305...306...307... 308...309 AND 310... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A RED FLAG WARNING FOR WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN EFFECT FROM 11 AM TO 8 PM MDT SUNDAY. THE RED FLAG WARNING HAS BEEN CANCELLED. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * AFFECTED AREA...FIRE WEATHER ZONE 303 CENTRAL AND NORTHERN CARBON/FERRIS-SEMINOE-SHIRLEY MOUNTAINS...FIRE WEATHER ZONE 304 SOUTHWEST CARBON...FIRE WEATHER ZONE 305 SIERRA MADRE RANGE/MEDICINE BOW NF...FIRE WEATHER ZONE 306 UPPER NORTH PLATTE RIVER BASIN...FIRE WEATHER ZONE 307 SNOWY RANGE/MEDICINE BOW NF... FIRE WEATHER ZONE 308 LARAMIE VALLEY/SHIRLEY BASIN...FIRE WEATHER ZONE 309 SOUTH LARAMIE RANGE/MEDICINE BOW NF AND FIRE WEATHER ZONE 310 PLATTE/GOSHEN/CENTRAL AND EASTERN LARAMIE. * WINDS...WEST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH. WINDS WILL TURN NORTH OR NORTHEASTERLY BEHIND THE COLD FRONT. * RELATIVE HUMIDITY...7 TO 12 PERCENT. * IMPACTS...GUSTY WINDS AND LOW HUMIDITIES MAY RESULT IN RAPID FIRE GROWTH. 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. && $$ WYZ301-302-161200- /O.CAN.KCYS.FW.W.0065.000000T0000Z-120916T0300Z/ /O.NEW.KCYS.FW.W.0066.120916T1700Z-120917T0200Z/ NIOBRARA/LOWER ELEVATIONS OF CONVERSE/THUNDER BASIN NATIONAL GRASSLAND-NORTH LARAMIE RANGE/MEDICINE BOW NF- 835 PM MDT SAT SEP 15 2012 ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 8 PM MDT SUNDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 301 AND 302... ...RED FLAG WARNING IS CANCELLED FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 301 AND 302... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A RED FLAG WARNING FOR WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN EFFECT FROM 11 AM TO 8 PM MDT SUNDAY. THE RED FLAG WARNING HAS BEEN CANCELLED. * AFFECTED AREA...FIRE WEATHER ZONE 301 NIOBRARA/LOWER ELEVATIONS OF CONVERSE/THUNDER BASIN NATIONAL GRASSLAND AND FIRE WEATHER ZONE 302 NORTH LARAMIE RANGE/MEDICINE BOW NF. * WINDS...WEST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH. WINDS WILL TURN NORTH OR NORTHEASTERLY BEHIND THE COLD FRONT. * RELATIVE HUMIDITY...7 TO 12 PERCENT. * IMPACTS...GUSTY WINDS AND LOW HUMIDITIES MAY RESULT IN RAPID FIRE GROWTH. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ NEZ312-313-161200- /O.UPG.KCYS.FW.A.0052.120916T1700Z-120917T0200Z/ /O.NEW.KCYS.FW.W.0066.120916T1700Z-120917T0200Z/ BOX BUTTE/SOUTH SIOUX- SCOTTS BLUFF NATIONAL MONUMENT/WILDCAT HILLS- 835 PM MDT SAT SEP 15 2012 ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 8 PM MDT SUNDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 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 11 AM TO 8 PM MDT SUNDAY. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. * AFFECTED AREA...FIRE WEATHER ZONE 312 BOX BUTTE/SOUTH SIOUX AND FIRE WEATHER ZONE 313 SCOTTS BLUFF NATIONAL MONUMENT/WILDCAT HILLS. * WINDS...WEST 15 TO 25 MPH WITH GUSTS UP TO 30 MPH. WINDS WILL TURN NORTH OR NORTHEASTERLY BEHIND THE COLD FRONT. * RELATIVE HUMIDITY...7 TO 12 PERCENT. * IMPACTS...GUSTY WINDS AND LOW HUMIDITIES MAY RESULT IN RAPID FIRE GROWTH. 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. && $$ NEZ311-161200- /O.NEW.KCYS.FW.W.0066.120916T1700Z-120917T0200Z/ PINE RIDGE/NEBRASKA NATIONAL FOREST/OGLALA NATIONAL GRASSLANDS- 835 PM MDT SAT SEP 15 2012 ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 8 PM MDT SUNDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONE 311... THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A RED FLAG WARNING FOR WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN EFFECT FROM 11 AM TO 8 PM MDT SUNDAY. * AFFECTED AREA...FIRE WEATHER ZONE 311 PINE RIDGE/NEBRASKA NATIONAL FOREST/OGLALA NATIONAL GRASSLANDS. * WINDS...WEST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH. WINDS WILL TURN NORTH OR NORTHEASTERLY BEHIND THE COLD FRONT. * RELATIVE HUMIDITY...7 TO 12 PERCENT. * IMPACTS...GUSTY WINDS AND LOW HUMIDITIES MAY RESULT IN RAPID FIRE GROWTH. PRECAUTIONARY/PREPAREDNESS ACTIONS... A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF STRONG WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL. && $$ HAHN
3 follow-up statements
088 WWUS85 KCYS 160939 RFWCYS URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 339 AM MDT SUN SEP 16 2012 ...CRITICAL FIRE WEATHER CONDITIONS ACROSS THE AREA TODAY... .WARM AND WINDY CONDITIONS WILL DEVELOP UNDER A VERY DRY AIR MASS AHEAD OF A LATE DAY COLD FRONT. HUMIDITY VALUES WILL DROP TO 5 TO 15 PERCENT ACROSS THE AREA...AND WILL COMBINE WITH WEST TO NORTHWEST WINDS WHICH WILL GUST 25 TO 35 MPH. THESE CONDITIONS ARE FAVORABLE FOR RAPID FIRE GROWTH. IN ADDITION...A HAINES INDEX OF 5 TO 6 SUGGESTS LARGE PLUME DOMINATED FIRE GROWTH WILL BE POSSIBLE. WINDS WILL BECOME NORTHEAST AND CONTINUE TO GUST THROUGH THE EVENING FOLLOWING THE PASSAGE OF A COLD FRONT...BUT HUMIDITY VALUES WILL RAPIDLY RECOVER AS TEMPERATURES DROP. NEZ311>313-WYZ301>310-170200- /O.CON.KCYS.FW.W.0066.120916T1700Z-120917T0200Z/ PINE RIDGE/NEBRASKA NATIONAL FOREST/OGLALA NATIONAL GRASSLANDS- 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-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- PLATTE/GOSHEN/CENTRAL AND EASTERN LARAMIE- 339 AM MDT SUN SEP 16 2012 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 8 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 303...304...305...306...307...308...309 AND 310... * AFFECTED AREA...FIRE WEATHER ZONES 301...302...303...304... 305...306...307...308...309...310...311...312 AND 313. * WINDS...WEST TO NORTHWEST 10 TO 20 MPH WITH GUSTS 25 TO 35 MPH. WINDS WILL RAPIDLY SWITCH TO THE NORTHEAST WITH THE PASSAGE OF A COLD FRONT LATE THIS AFTERNOON AND EVENING. * RELATIVE HUMIDITY...5 TO 15 PERCENT. * IMPACTS...GUSTY WINDS AND LOW HUMIDITIES MAY RESULT IN RAPID FIRE GROWTH. HAINES INDEX OF 5 TO 6 INDICATES THE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. 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. && $$ LIEBL
410 WWUS85 KCYS 162111 RFWCYS URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 311 PM MDT SUN SEP 16 2012 ...CRITICAL FIRE WEATHER CONDITIONS WILL CONTINUE ACROSS THE AREA THROUGH THE EARLY EVENING... .WARM...DRY AND WINDY WEATHER WILL CONTINUE OVER SOUTHEAST WYOMING AND THE WESTERN NEBRASKA PANHANDLE THROUGH THE EARLY EVENING. CRITICAL FIRE WEATHER CONDITIONS AND A RED FLAG WARNING WILL CONTINUE THROUGH THAT TIME. WESTERLY SURFACE WINDS WILL GUST AS HIGH AS 35 MPH AND RELATIVE HUMIDITY VALUES WILL BE AROUND 10 PERCENT. A COLD FRONT WILL MOVE ACROSS THE REGION THROUGH THE EARLY EVENING. BEHIND THE FRONT WILL BE NORTHERLY SURFACE WINDS GUSTING AS HIGH AS 30 MPH THROUGH AT LEAST EARLY TONIGHT. NEZ311>313-WYZ301>310-170200- /O.CON.KCYS.FW.W.0066.000000T0000Z-120917T0200Z/ PINE RIDGE/NEBRASKA NATIONAL FOREST/OGLALA NATIONAL GRASSLANDS- 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-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- PLATTE/GOSHEN/CENTRAL AND EASTERN LARAMIE- 311 PM MDT SUN SEP 16 2012 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 301... 302...303...304...305...306...307...308...309...310...311... 312 AND 313... * 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 305 SIERRA MADRE RANGE/MEDICINE BOW NF... FIRE WEATHER ZONE 306 UPPER NORTH PLATTE RIVER BASIN...FIRE WEATHER ZONE 307 SNOWY RANGE/MEDICINE BOW NF...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 311 PINE RIDGE/NEBRASKA NATIONAL FOREST/OGLALA NATIONAL GRASSLANDS...FIRE WEATHER ZONE 312 BOX BUTTE/SOUTH SIOUX AND FIRE WEATHER ZONE 313 SCOTTS BLUFF NATIONAL MONUMENT/WILDCAT HILLS. * WINDS...WEST TO NORTHWEST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH. WINDS SHIFTING TO THE NORTH IN THE EARLY EVENING WITH GUSTS TO 30 MPH. * RELATIVE HUMIDITY...AS LOW AS 9 PERCENT. * IMPACTS...GUSTY WINDS AND LOW HUMIDITIES MAY RESULT IN RAPID FIRE GROWTH. HAINES INDEX OF 5 TO 6 INDICATES THE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. 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. && $$ WEILAND
634 WWUS85 KCYS 170157 RFWCYS URGENT - FIRE WEATHER MESSAGE NATIONAL WEATHER SERVICE CHEYENNE WY 757 PM MDT SUN SEP 16 2012 NEZ311>313-WYZ301>310-170300- /O.EXP.KCYS.FW.W.0066.000000T0000Z-120917T0200Z/ PINE RIDGE/NEBRASKA NATIONAL FOREST/OGLALA NATIONAL GRASSLANDS- 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-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- PLATTE/GOSHEN/CENTRAL AND EASTERN LARAMIE- 757 PM MDT SUN SEP 16 2012 ...RED FLAG WARNING WILL EXPIRE AT 8 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 301...302... 303...304...305...306...307...308...309...310...311...312 AND 313... RELATIVE HUMIDITIES WILL CONTINUE TO RECOVER ABOVE CRITICAL THRESHOLDS BEHIND A COLD FRONTAL PASSAGE THAT HAS MOVED ACROSS THE DISTRICT THIS EVENING. THEREFORE...THE RED FLAG WARNING WILL BE ALLOWED TO EXPIRE AT 8 PM. $$ HAHN
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.