Alert archive / Wyoming / Red Flag Warnings in 2011

Red Flag Warning 8, NWS Cheyenne, WY

August 30, 2011

NWS Cheyenne, WY issued this red flag warning at Aug 30, 2011, 6:01 PM MDT. It took effect at Aug 31, 2011, 11:00 AM MDT. It was in force for 33 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 30, 2011, 6:01 PM MDT (00:01 UTC)
In effect from
Aug 31, 2011, 11:00 AM MDT
Expired
Sep 1, 2011, 7:35 PM MDT
In force
33 hr
Issued by
NWS Cheyenne, WY

The text

As transmitted, in the capitals the NWS used until 2016.

367 
WWUS85 KCYS 310001
RFWCYS

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
601 PM MDT TUE AUG 30 2011

...RED FLAG WARNING IN EFFECT FROM 11 AM THROUGH 8 PM WEDNESDAY FOR
THE LARAMIE VALLEY...LARAMIE RANGE AND EAST CENTRAL WYOMING FOR
GUSTY WINDS AND LOW RELATIVE HUMIDITIES...

.VERY WARM AND DRY CONDITIONS WILL CAUSE RELATIVE HUMIDITIES TO
PLUMMET WEDNESDAY AFTERNOON. MEANWHILE...SOUTHWEST WINDS WILL
STRENGTHEN RESULTING IN GUSTS THAT MAY APPROACH 35 TO 45 MPH
DURING THE AFTERNOON. THE COMBINATION OF THE VERY WARM
TEMPERATURES...DRY AIR MASS AND GUSTY SOUTHWEST WINDS WILL CREATE
CRITICAL FIRE WEATHER CONDITIONS FOR MUCH OF SOUTHEAST WYOMING.

WYZ301>304-306-308-309-311300-
/O.UPG.KCYS.FW.A.0006.110831T1700Z-110901T0200Z/
/O.NEW.KCYS.FW.W.0008.110831T1700Z-110901T0200Z/
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-
601 PM MDT TUE AUG 30 2011

...RED FLAG WARNING IN EFFECT FROM 11 AM TO 8 PM MDT WEDNESDAY
FOR STRONG WINDS AND LOW AFTERNOON HUMIDITIES...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A RED FLAG
WARNING FOR THE COMBINATION OF STRONG SOUTHWEST WINDS AND LOW
AFTERNOON HUMIDITIES...WHICH IS IN EFFECT FROM 11 AM TO 8 PM MDT
WEDNESDAY. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT.

* AFFECTED AREA...AREAS ALONG AND WEST OF THE LARAMIE
  RANGE...INCLUDING NIOBRARA COUNTY IN EASTERN WYOMING.

* WINDS...SOUTHWEST 25 TO 35 MPH WITH GUSTS UP TO 45 MPH.

* TIMING...11 AM THROUGH 8 PM WEDNESDAY.

* RELATIVE HUMIDITY...AS LOW AS 11 PERCENT.

* TEMPERATURES...IN THE MID 80S.

* IMPACTS...STRONG SOUTHWEST WINDS COMBINED WITH THE LOW RELATIVE
  HUMIDITY...COMBINED WITH CRITICAL FUEL MOISTURES...WILL CREATE
  THE POTENTIAL FOR RAPID FIRE GROWTH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
WILL OCCUR WEDNESDAY MORNING AND PERSIST THROUGH THE EARLY EVENING
HOURS. A COMBINATION OF STRONG WINDS...LOW RELATIVE
HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE GROWTH
POTENTIAL.

&&

$$

CLAYCOMB
6 follow-up statements
109 
WWUS85 KCYS 311017
RFWCYS

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
417 AM MDT WED AUG 31 2011

...RED FLAG CONDITIONS ACROSS MUCH OF SOUTHEAST WYOMING TODAY
AND THURSDAY...

.VERY WARM AND DRY CONDITIONS WILL CAUSE RELATIVE HUMIDITIES TO
PLUMMET THIS AFTERNOON. MEANWHILE...SOUTHWEST WINDS WILL STRENGTHEN
RESULTING IN GUSTS THAT MAY APPROACH 45 MPH THIS AFTERNOON. A COLD
FRONT WILL PUSH SOUTH INTO EAST CENTRAL WYOMING TONIGHT ENDING
CRITICAL FIRE WEATHER CONDITIONS THERE. ALTHOUGH CONDITIONS WILL
IMPROVE TONIGHT IN CARBON AND ALBANY COUNTIES...EXPECT CRITICAL
CONDITIONS TO RETURN ONCE AGAIN ON THURSDAY AFTERNOON. THE
COMBINATION OF THE VERY WARM TEMPERATURES...DRY AIR MASS AND GUSTY
SOUTHWEST WINDS WILL CREATE CRITICAL FIRE WEATHER CONDITIONS FOR
MUCH OF SOUTHEAST TODAY AND THURSDAY.

WYZ303-304-306-308-309-010200-
/O.EXT.KCYS.FW.W.0008.110831T1700Z-110902T0200Z/
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-
417 AM MDT WED AUG 31 2011

...RED FLAG WARNING NOW IN EFFECT FROM 11 AM THIS MORNING TO 8 PM
MDT THURSDAY FOR STRONG WINDS AND LOW AFTERNOON HUMIDITIES...

THE RED FLAG WARNING IS NOW IN EFFECT FROM 11 AM THIS MORNING TO
8 PM MDT THURSDAY. 

* AFFECTED AREA...LOWER ELEVATIONS OF CARBON AND ALBANY COUNTIES
  AND THE SOUTHERN LARAMIE RANGE.

* WINDS...SOUTHWEST AT 20 TO 30 MPH WITH GUSTS UP TO 45 MPH
  THROUGH THIS EVENING. SOUTHWEST WINDS WILL WEAKEN TO 10 TO 20
  MPH OVERNIGHT...BUT INCREASE ONCE AGAIN WITH GUSTS OF UP TO 35
  MPH EXPECTED THURSDAY AFTERNOON.

* TIMING...11 AM TODAY THROUGH 8 PM THURSDAY.

* MINIMUM RELATIVE HUMIDITY...10 TO 15 PERCENT TODAY. RECOVERIES
  WILL REACH 40 TO 50 PERCENT TONIGHT...BUT HUMIDITIES WILL
  PLUMMET TO 10 TO 15 PERCENT ONCE AGAIN ON THURSDAY AFTERNOON.

* TEMPERATURES...MID TO UPPER 80S TODAY. LOW TO MID 80S ON THURSDAY.

* IMPACTS...STRONG AND GUSTY SOUTHWEST WINDS COMBINED WITH LOW
  RELATIVE HUMIDITIES WILL CREATE THE POTENTIAL FOR RAPID FIRE
  GROWTH AND SPREAD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
WILL OCCUR WEDNESDAY MORNING AND PERSIST THROUGH THE EARLY
EVENING HOURS. A COMBINATION OF STRONG WINDS...LOW RELATIVE
HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE
GROWTH POTENTIAL.

&&

$$

WYZ301-302-010200-
/O.CON.KCYS.FW.W.0008.110831T1700Z-110901T0200Z/
NIOBRARA/LOWER ELEVATIONS OF CONVERSE/THUNDER BASIN NATIONAL
GRASSLAND-NORTH LARAMIE RANGE/MEDICINE BOW NF-
417 AM MDT WED AUG 31 2011

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO
8 PM MDT THIS EVENING FOR STRONG WINDS AND LOW AFTERNOON
HUMIDITIES...

A RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO
8 PM MDT THIS EVENING. 

* AFFECTED AREA...EAST CENTRAL WYOMING. 

* WINDS...SOUTHWEST 20 TO 30 MPH WITH GUSTS UP TO 40 MPH.

* TIMING...11 AM THROUGH 8 PM TODAY.

* RELATIVE HUMIDITY...9 TO 14 PERCENT.

* TEMPERATURES...90S BELOW 6000 FEET. 80S ABOVE 6000 FEET.

* IMPACTS...STRONG AND GUSTY SOUTHWEST WINDS COMBINED WITH LOW
  RELATIVE HUMIDITIES WILL CREATE THE POTENTIAL FOR RAPID FIRE
  GROWTH AND SPREAD. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
WILL OCCUR WEDNESDAY MORNING AND PERSIST THROUGH THE EARLY
EVENING HOURS. A COMBINATION OF STRONG WINDS...LOW RELATIVE
HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE
GROWTH POTENTIAL.

&&

$$

HAHN
221 
WWUS85 KCYS 311656
RFWCYS

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
1056 AM MDT WED AUG 31 2011

...RED FLAG CONDITIONS ACROSS MUCH OF SOUTHEAST WYOMING TODAY AND
THURSDAY...

.VERY WARM AND DRY CONDITIONS WILL CAUSE RELATIVE HUMIDITIES TO
PLUMMET THIS AFTERNOON. MEANWHILE...SOUTHWEST WINDS WILL
STRENGTHEN RESULTING IN GUSTS THAT MAY APPROACH 45 MPH THIS
AFTERNOON. A COLD FRONT WILL PUSH SOUTH INTO EAST CENTRAL WYOMING
TONIGHT ENDING CRITICAL FIRE WEATHER CONDITIONS THERE. ALTHOUGH
CONDITIONS WILL IMPROVE TONIGHT IN CARBON AND ALBANY COUNTIES...
EXPECT CRITICAL CONDITIONS TO RETURN ONCE AGAIN ON THURSDAY
AFTERNOON. THE COMBINATION OF THE VERY WARM TEMPERATURES...DRY
AIR MASS AND GUSTY SOUTHWEST WINDS WILL CREATE CRITICAL FIRE
WEATHER CONDITIONS FOR MUCH OF SOUTHEAST TODAY AND THURSDAY.

WYZ310-010100-
/O.EXA.KCYS.FW.W.0008.110831T1700Z-110902T0200Z/
PLATTE/GOSHEN/CENTRAL AND EASTERN LARAMIE-
1056 AM MDT WED AUG 31 2011

...RED FLAG WARNING IN EFFECT UNTIL 8 PM MDT THURSDAY FOR LOW
RELATIVE HUMIDITY AND GUSTY WINDS FOR FIRE WEATHER ZONE 310...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A RED FLAG
WARNING FOR FIRE WEATHER ZONE 310...WHICH IS IN EFFECT UNTIL
8 PM MDT THURSDAY. 

* AFFECTED AREA...FIRE WEATHER ZONE 310.

* WINDS...SOUTHWEST 10 TO 20 MPH WITH GUSTS UP TO 30 MPH.

* TIMING...THROUGH 8 PM THURSDAY.

* RELATIVE HUMIDITY...AS LOW AS 14 PERCENT.

* TEMPERATURES...IN THE UPPER 70S.

* IMPACTS...STRONG AND GUSTY SOUTHWEST WINDS COMBINED WITH LOW 
  RELATIVE HUMIDITIES WILL CREATE THE POTENTIAL FOR RAPID FIRE 
  GROWTH AND SPREAD. 

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.

&&

$$

WYZ301-302-010100-
/O.CON.KCYS.FW.W.0008.110831T1700Z-110901T0200Z/
NIOBRARA/LOWER ELEVATIONS OF CONVERSE/THUNDER BASIN NATIONAL
GRASSLAND-NORTH LARAMIE RANGE/MEDICINE BOW NF-
1056 AM MDT WED AUG 31 2011

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING
FOR STRONG WINDS AND LOW AFTERNOON HUMIDITIES...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING.

* AFFECTED AREA...EAST CENTRAL WYOMING.

* WINDS...SOUTHWEST 20 TO 30 MPH WITH GUSTS UP TO 40 MPH.

* TIMING...11 AM THROUGH 8 PM TODAY.

* RELATIVE HUMIDITY...AS LOW AS 12 PERCENT.

* TEMPERATURES...IN THE UPPER 80S.

* IMPACTS...STRONG AND GUSTY SOUTHWEST WINDS COMBINED WITH LOW 
  RELATIVE HUMIDITIES WILL CREATE THE POTENTIAL FOR RAPID FIRE 
  GROWTH AND SPREAD. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
WILL OCCUR WEDNESDAY MORNING AND PERSIST THROUGH THE EARLY
EVENING HOURS. A COMBINATION OF STRONG WINDS...LOW RELATIVE
HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE
GROWTH POTENTIAL.

&&

$$

WYZ303-304-306-308-309-010100-
/O.CON.KCYS.FW.W.0008.110831T1700Z-110902T0200Z/
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-
1056 AM MDT WED AUG 31 2011

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THURSDAY FOR
STRONG WINDS AND LOW AFTERNOON HUMIDITIES...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THURSDAY. 

* AFFECTED AREA...LOWER ELEVATIONS OF CARBON AND ALBANY COUNTIES 
  AND THE SOUTHERN LARAMIE RANGE. 

* WINDS...SOUTHWEST 20 TO 30 MPH WITH GUSTS UP TO 45 MPH.

* TIMING...11 AM TODAY THROUGH 8 PM THURSDAY.

* MINIMUM RELATIVE HUMIDITY...10 TO 15 PERCENT TODAY. RECOVERIES 
  WILL REACH 40 TO 50 PERCENT TONIGHT...BUT HUMIDITIES WILL 
  PLUMMET TO 10 TO 15 PERCENT ONCE AGAIN ON THURSDAY AFTERNOON. 

* TEMPERATURES...IN THE UPPER 60S.

* IMPACTS...STRONG AND GUSTY SOUTHWEST WINDS COMBINED WITH LOW 
  RELATIVE HUMIDITIES WILL CREATE THE POTENTIAL FOR RAPID FIRE 
  GROWTH AND SPREAD. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
WILL OCCUR WEDNESDAY MORNING AND PERSIST THROUGH THE EARLY
EVENING HOURS. A COMBINATION OF STRONG WINDS...LOW RELATIVE
HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE
GROWTH POTENTIAL.

&&

$$
668 
WWUS85 KCYS 010057
RFWCYS

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
657 PM MDT WED AUG 31 2011

...RED FLAG CONDITIONS ACROSS MUCH OF SOUTHEAST WYOMING TODAY AND
THURSDAY...

.VERY WARM AND DRY CONDITIONS WILL CONTINUE TO PRODUCE RELATIVE
HUMIDITIES BETWEEN 10 AND 15 PERCENT EARLY THIS EVENING.
MEANWHILE...SOUTHWEST WINDS WILL PERSIST AND RESULT IN GUSTS THAT
MAY APPROACH 45 MPH. A COLD FRONT WILL PUSH SOUTH INTO EAST
CENTRAL WYOMING LATE TONIGHT ENDING CRITICAL FIRE WEATHER
CONDITIONS THERE. ALTHOUGH CONDITIONS WILL IMPROVE TONIGHT IN
CARBON AND ALBANY COUNTIES... EXPECT CRITICAL CONDITIONS TO RETURN
ONCE AGAIN ON THURSDAY AFTERNOON. THE COMBINATION OF THE VERY WARM
TEMPERATURES...DRY AIR MASS AND GUSTY SOUTHWEST WINDS WILL CREATE
CRITICAL FIRE WEATHER CONDITIONS FOR MUCH OF SOUTHEAST WYOMING
EARLY THIS EVENING AND THURSDAY.

WYZ301-302-010200-
/O.CON.KCYS.FW.W.0008.000000T0000Z-110901T0200Z/
NIOBRARA/LOWER ELEVATIONS OF CONVERSE/THUNDER BASIN NATIONAL
GRASSLAND-NORTH LARAMIE RANGE/MEDICINE BOW NF-
657 PM MDT WED AUG 31 2011

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING
FOR STRONG WINDS AND LOW AFTERNOON HUMIDITIES...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING.

* AFFECTED AREA...EAST CENTRAL WYOMING.

* WINDS...SOUTHWEST 20 TO 25 MPH WITH GUSTS UP TO 40 MPH.

* TIMING...THROUGH 8 PM.

* RELATIVE HUMIDITY...AS LOW AS 13 PERCENT.

* TEMPERATURES...IN THE MID 80S.

* IMPACTS...STRONG AND GUSTY SOUTHWEST WINDS COMBINED WITH LOW 
  RELATIVE HUMIDITIES WILL CREATE THE POTENTIAL FOR RAPID FIRE 
  GROWTH AND SPREAD. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
WILL OCCUR WEDNESDAY MORNING AND PERSIST THROUGH THE EARLY
EVENING HOURS. A COMBINATION OF STRONG WINDS...LOW RELATIVE
HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE
GROWTH POTENTIAL.

&&

$$

WYZ303-304-306-308>310-010900-
/O.CON.KCYS.FW.W.0008.000000T0000Z-110902T0200Z/
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-
657 PM MDT WED AUG 31 2011

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THURSDAY FOR
STRONG WINDS AND LOW AFTERNOON HUMIDITIES...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THURSDAY. 

* AFFECTED AREA...LOWER ELEVATIONS OF CARBON AND ALBANY COUNTIES 
  AND THE SOUTHERN LARAMIE RANGE. 

* WINDS...SOUTHWEST 15 TO 25 MPH WITH GUSTS UP TO 45 MPH.

* TIMING...THROUGH 8 PM THURSDAY.

* MINIMUM RELATIVE HUMIDITY...10 TO 15 PERCENT THIS EVENING.
  RECOVERIES WILL REACH 40 TO 50 PERCENT TONIGHT...BUT HUMIDITIES
  WILL PLUMMET TO 10 TO 15 PERCENT ONCE AGAIN ON THURSDAY
  AFTERNOON.

* TEMPERATURES...AROUND 70.

* IMPACTS...STRONG AND GUSTY SOUTHWEST WINDS COMBINED WITH LOW 
  RELATIVE HUMIDITIES WILL CREATE THE POTENTIAL FOR RAPID FIRE 
  GROWTH AND SPREAD. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
WILL OCCUR WEDNESDAY MORNING AND PERSIST THROUGH THE EARLY
EVENING HOURS. A COMBINATION OF STRONG WINDS...LOW RELATIVE
HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE
GROWTH POTENTIAL.

&&

$$
COX
472 
WWUS85 KCYS 010159
RFWCYS

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
759 PM MDT WED AUG 31 2011

...RED FLAG CONDITIONS ARE EXPECTED ACROSS MUCH OF SOUTHEAST
WYOMING THURSDAY...

A COLD FRONT WILL PUSH SOUTH INTO EAST CENTRAL WYOMING LATE
TONIGHT ENDING CRITICAL FIRE WEATHER CONDITIONS THERE. ALTHOUGH
CONDITIONS WILL IMPROVE TONIGHT IN CARBON AND ALBANY COUNTIES...
EXPECT CRITICAL CONDITIONS TO RETURN ONCE AGAIN ON THURSDAY
AFTERNOON. THE COMBINATION OF THE VERY WARM TEMPERATURES...DRY AIR
MASS AND GUSTY SOUTHWEST WINDS WILL CREATE CRITICAL FIRE WEATHER
CONDITIONS FOR MUCH OF SOUTHEAST WYOMING THURSDAY.

WYZ301-302-010300-
/O.EXP.KCYS.FW.W.0008.000000T0000Z-110901T0200Z/
NIOBRARA/LOWER ELEVATIONS OF CONVERSE/THUNDER BASIN NATIONAL
GRASSLAND-NORTH LARAMIE RANGE/MEDICINE BOW NF-
759 PM MDT WED AUG 31 2011

...RED FLAG WARNING WILL EXPIRE AT 8 PM MDT THIS EVENING FOR
STRONG WINDS AND LOW AFTERNOON HUMIDITIES...

THE RED FLAG WARNING WILL EXPIRE AT 8 PM MDT THIS EVENING. 

RELATIVE HUMIDITIES HAVE RECOVERED TO 20 TO 25 PERCENT AND SHOULD
CONTINUE TO RECOVER TO VALUES OF 50 TO 60 PERCENT OVERNIGHT.
SOUTHWEST WINDS WILL PERSIST AT 10 TO 20 MPH THROUGH THE NIGHT. 

$$

WYZ303-304-306-308>310-011100-
/O.CON.KCYS.FW.W.0008.000000T0000Z-110902T0200Z/
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-
759 PM MDT WED AUG 31 2011

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THURSDAY FOR
STRONG WINDS AND LOW AFTERNOON HUMIDITIES...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THURSDAY. 

* AFFECTED AREA...LOWER ELEVATIONS OF CARBON AND ALBANY COUNTIES 
  AND THE SOUTHERN LARAMIE RANGE. 

* WINDS...SOUTHWEST 15 TO 25 MPH WITH GUSTS UP TO 45 MPH THURSDAY
  AFTERNOON.

* TIMING...THROUGH 8 PM THURSDAY.

* RELATIVE HUMIDITY RECOVERIES WILL REACH 40 TO 50 PERCENT
  TONIGHT...BUT HUMIDITIES WILL PLUMMET TO 10 TO 15 PERCENT ONCE
  AGAIN ON THURSDAY AFTERNOON.

* TEMPERATURES...AROUND 70.

* IMPACTS...STRONG AND GUSTY SOUTHWEST WINDS COMBINED WITH LOW 
  RELATIVE HUMIDITIES WILL CREATE THE POTENTIAL FOR RAPID FIRE 
  GROWTH AND SPREAD. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
WILL OCCUR WEDNESDAY MORNING AND PERSIST THROUGH THE EARLY
EVENING HOURS. A COMBINATION OF STRONG WINDS...LOW RELATIVE
HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE
GROWTH POTENTIAL.

&&

$$
COX
934 
WWUS85 KCYS 011046
RFWCYS

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
446 AM MDT THU SEP 1 2011

...RED FLAG CONDITIONS TODAY ACROSS MUCH OF SOUTHEAST WYOMING...

.THE COMBINATION OF VERY WARM TEMPERATURES...A DRY AIR MASS AND
GUSTY SOUTHWEST WINDS WILL CREATE CRITICAL FIRE WEATHER CONDITIONS
THIS AFTERNOON ACROSS THE LOWER ELEVATIONS OF CARBON...ALBANY...
LARAMIE...PLATTE AND GOSHEN COUNTIES. COOLER TEMPERATURES BEHIND
THIS EVENINGS COLD FRONT WILL ALLOW HUMIDITIES TO RECOVER
SIGNIFICANTLY TONIGHT. NEAR CRITICAL CONDITIONS WILL RETURN TO THE
LOWER ELEVATIONS OF CARBON AND ALBANY COUNTIES ON FRIDAY.

WYZ303-304-306-308>310-020200-
/O.CON.KCYS.FW.W.0008.000000T0000Z-110902T0200Z/
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-
446 AM MDT THU SEP 1 2011

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING
FOR STRONG WINDS AND LOW AFTERNOON HUMIDITIES...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING.

* AFFECTED AREA...FIRE WEATHER ZONES 303...304...306...308...309
  AND 310.

* WINDS...WEST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH.

* TIMING...THROUGH 8 PM TODAY.

* TEMPERATURES...MID 80 WEST OF THE LARAMIE RANGE WITH LOW TO MID
  90S EAST.

* IMPACTS...STRONG AND GUSTY SOUTHWEST WINDS COMBINED WITH LOW 
  RELATIVE HUMIDITIES WILL CREATE THE POTENTIAL FOR RAPID FIRE 
  GROWTH AND SPREAD. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
WILL OCCUR WEDNESDAY MORNING AND PERSIST THROUGH THE EARLY
EVENING HOURS. A COMBINATION OF STRONG WINDS...LOW RELATIVE
HUMIDITY...AND WARM TEMPERATURES WILL CREATE EXPLOSIVE FIRE
GROWTH POTENTIAL.

&&

$$

HAHN
211 
WWUS85 KCYS 020135
RFWCYS

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
735 PM MDT THU SEP 1 2011

...GUSTY WESTERLY WINDS HAVE DIMINISHED OVER SOUTHEAST
WYOMING....

.THE GUSTY WESTERLY SURFACE WINDS HAVE DIMINISHED SINCE 6 PM
OVER AREAS ALONG AND WEST OF THE LARAMIE RANGE. THE RELATIVE
HUMIDITIES HAVE ALSO STARTED TO SLOWLY RECOVER. FOR THOSE
REASONS...RED FLAG CONDITIONS ARE NOT EXPECTED FOR THE REST 
OF TONIGHT AND THE RED FLAG WARNING HAS BEEN CANCELLED. 

WYZ303-304-306-308>310-020245-
/O.CAN.KCYS.FW.W.0008.000000T0000Z-110902T0200Z/
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-
735 PM MDT THU SEP 1 2011

...RED FLAG WARNING IS CANCELLED FOR WARM...DRY AND WINDY 
CONDITIONS AFFECTING PARTS OF SOUTHEAST WYOMING. 

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS CANCELLED THE RED
FLAG WARNING. 

THE GUSTY WESTERLY SURFACE WINDS HAVE DIMINISHED SINCE 6 PM
OVER AREAS ALONG AND WEST OF THE LARAMIE RANGE. THE RELATIVE
HUMIDITIES HAVE ALSO STARTED TO SLOWLY RECOVER. FOR THOSE
REASONS...RED FLAG CONDITIONS ARE NOT EXPECTED FOR THE REST 
OF TONIGHT AND THE RED FLAG WARNING HAS BEEN CANCELLED. 

$$

WEILAND

The office that day

Everything else NWS Cheyenne, WY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 31, 1:52 PM MDTSpecial Weather StatementCYSCarbon53 min
Aug 31, 3:41 PM MDTSpecial Weather StatementCYSAlbany64 min
Aug 31, 3:44 PM MDTSpecial Weather StatementCYSAlbany61 min
Aug 31, 3:59 PM MDTSpecial Weather StatementCYSGoshen61 min

Nearby

Red Flag Warnings in Wyoming, 2011Every red flag warning in 2011

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.