Alert archive / Wyoming / Red Flag Warnings in 2012

Red Flag Warning 50, NWS Cheyenne, WY

August 14, 2012

NWS Cheyenne, WY issued this red flag warning at Aug 14, 2012, 9:23 PM MDT. It took effect at Aug 15, 2012, 11:00 AM MDT. It was in force for 7 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 14, 2012, 9:23 PM MDT (03:23 UTC)
In effect from
Aug 15, 2012, 11:00 AM MDT
Expired
Aug 15, 2012, 6:00 PM MDT
In force
7 hr
Issued by
NWS Cheyenne, WY

The text

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

874 
WWUS85 KCYS 150323
RFWCYS

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
923 PM MDT TUE AUG 14 2012

...RED FLAG WARNING FOR STRONG WINDS AND LOW HUMIDITIES FOR FIRE
WEATHER ZONES 309...310...312 AND 313 WEDNESDAY...

.A STRONG COLD FRONT IS EXPECTED TO MOVE SOUTH OUT OF MONTANA
WEDNESDAY MORNING AND THROUGH THE SOUTHERN PANHANDLE BY LATE
WEDNESDAY AFTERNOON. AHEAD OF THIS FRONT...STRONG NORTHWEST WINDS
ARE EXPECTED TO DEVELOP. AFTERNOON HIGHS IN THE PANHANDLE AND
EXTREME SOUTHEAST WYOMING ARE EXPECTED TO CLIMB INTO THE UPPER 80S
AND LOW 90S WEDNESDAY WHICH WILL CREATE AFTERNOON HUMIDITIES IN
THE UPPER SINGLE DIGITS AND LOW TEENS. ONCE THE FRONT MOVES
THROUGH...WINDS WILL SHIFT TO THE NORTH AND NORTHEAST AND WILL
REMAIN STRONG THROUGH THE EVENING HOURS.

NEZ312-313-WYZ309-310-151200-
/O.UPG.KCYS.FW.A.0039.120815T1700Z-120816T0000Z/
/O.NEW.KCYS.FW.W.0050.120815T1700Z-120816T0000Z/
BOX BUTTE/SOUTH SIOUX-
SCOTTS BLUFF NATIONAL MONUMENT/WILDCAT HILLS-
SOUTH LARAMIE RANGE/MEDICINE BOW NF-
PLATTE/GOSHEN/CENTRAL AND EASTERN LARAMIE-
923 PM MDT TUE AUG 14 2012

...RED FLAG WARNING IN EFFECT FROM 11 AM TO 6 PM MDT WEDNESDAY
FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 309...
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 11 AM TO 6 PM MDT WEDNESDAY. THE FIRE WEATHER WATCH IS NO
LONGER IN EFFECT.

* AFFECTED AREA...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...NORTH 15 TO 25 MPH WITH GUSTS UP TO 35 MPH.

* RELATIVE HUMIDITY...9 TO 14 PERCENT.

* IMPACTS...COMBINATION OF DRY HUMIDITIES AND GUSTY NORTHWESTERLY
  WINDS WILL LEAD TO CRITICAL FIRE WEATHER CONDITIONS LATE
  WEDNESDAY MORNING AND PERSIST THROUGH THE LATE AFTERNOON. THERE
  WILL BE AN INCREASED THREAT FOR RAPID FIRE SPREAD WEDNESDAY.

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.

&&

$$
5 follow-up statements
428 
WWUS85 KCYS 150910
RFWCYS

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
310 AM MDT WED AUG 15 2012

...RED FLAG WARNING FOR STRONG WINDS AND LOW HUMIDITIES FOR FIRE
WEATHER ZONES 303...304...306...308...309...310...312 AND 313
TODAY... 

.A STRONG COLD FRONT IS EXPECTED TO MOVE SOUTH OUT OF MONTANA
THIS MORNING AND THROUGH THE SOUTHERN PANHANDLE BY LATE
THIS AFTERNOON. AHEAD OF THIS FRONT...STRONG WEST TO NORTHWEST
WINDS ARE EXPECTED TO DEVELOP. AFTERNOON HIGHS IN THE PANHANDLE
AND LOWER ELEVATIONS OF SOUTHEAST WYOMING ARE EXPECTED TO CLIMB
INTO THE UPPER 80S AND LOW 90S WHICH WILL CREATE AFTERNOON
HUMIDITIES IN THE LOW TEENS. ONCE THE FRONT MOVES
THROUGH...HUMIDITIES WILL SLOWLY INCREASE BUT WINDS WILL SHIFT
TO THE NORTH AND NORTHEAST AND WILL REMAIN STRONG THROUGH THE
EVENING HOURS.

WYZ303-304-306-308-152100-
/O.EXA.KCYS.FW.W.0050.120815T1700Z-120816T0000Z/
CENTRAL AND NORTHERN CARBON/FERRIS-SEMINOE-SHIRLEY MOUNTAINS-
SOUTHWEST CARBON-UPPER NORTH PLATTE RIVER BASIN-
LARAMIE VALLEY/SHIRLEY BASIN-
310 AM MDT WED AUG 15 2012

...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 6 PM MDT
THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER
ZONES 303...304...306 AND 308...

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 THIS MORNING TO 6 PM MDT THIS EVENING.

* AFFECTED AREA...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 AND FIRE WEATHER ZONE 308 LARAMIE 
  VALLEY/SHIRLEY BASIN.

* WINDS...WEST TO NORTHWEST 15 TO 20 MPH WITH GUSTS UP TO 30 MPH.

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

* IMPACTS...COMBINATION OF DRY HUMIDITIES AND GUSTY WESTERLY WINDS
  WILL LEAD TO CRITICAL FIRE WEATHER CONDITIONS LATE THIS
  MORNING AND WILL PERSIST THROUGH THE LATE AFTERNOON. THIS IS
  MAINLY FOR THE LOWER ELEVATIONS IN THE SOUTHERN HALF OF CARBON
  AND ALBANY COUNTIES. 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-WYZ309-310-152100-
/O.CON.KCYS.FW.W.0050.120815T1700Z-120816T0000Z/
BOX BUTTE/SOUTH SIOUX-
SCOTTS BLUFF NATIONAL MONUMENT/WILDCAT HILLS-
SOUTH LARAMIE RANGE/MEDICINE BOW NF-
PLATTE/GOSHEN/CENTRAL AND EASTERN LARAMIE-
310 AM MDT WED AUG 15 2012

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO
6 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE
WEATHER ZONES 309...310...312 AND 313...

* AFFECTED AREA...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...NORTH 15 TO 25 MPH WITH GUSTS UP TO 35 MPH.

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

* IMPACTS...COMBINATION OF DRY HUMIDITIES AND GUSTY NORTH WINDS
  WILL LEAD TO CRITICAL FIRE WEATHER CONDITIONS BEGINNING LATE
  THIS MORNING AND WILL PERSIST THROUGH THE LATE 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.

&&

$$

RJM
221 
WWUS85 KCYS 151729
RFWCYS

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
1129 AM MDT WED AUG 15 2012

...RED FLAG WARNING FOR STRONG WINDS AND LOW HUMIDITIES FOR FIRE
WEATHER ZONES 303...304...306...308...309...310 AND 313 TODAY...

.A STRONG COLD FRONT WILL CONTINUE TO MOVE SOUTH ACROSS SOUTHEAST
WYOMING AND THE SOUTHERN NEBRASKA PANHANDLE BY EARLY THIS
AFTERNOON. STRONG WEST TO NORTHWEST WINDS WILL GRADUALLY SHIFT TO
THE NORTH AS THE FRONT ADVANCES INTO COLORADO. AFTERNOON HIGHS IN
THE PANHANDLE AND LOWER ELEVATIONS OF SOUTHEAST WYOMING WILL CLIMB
INTO THE UPPER 80S AND LOW 90S...CREATING AFTERNOON HUMIDITIES IN
THE LOW TEENS. HUMIDITIES WILL SLOWLY INCREASE THROUGH THE MID TO
LATE AFTERNOON HOURS...BUT WINDS WILL REMAIN STRONG THROUGH THE
EVENING. 

NEZ312-151830-
/O.CAN.KCYS.FW.W.0050.000000T0000Z-120816T0000Z/
BOX BUTTE/SOUTH SIOUX-
1129 AM MDT WED AUG 15 2012

...RED FLAG WARNING IS CANCELLED FOR WIND AND LOW RELATIVE
HUMIDITY FOR FIRE WEATHER ZONE 312...

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

THE PASSAGE OF A STRONG COLD FRONT HAS ALLOWED MOISTURE TO
INCREASE ACROSS FIRE WEATHER ZONE 312. GUSTY NORTH TO NORTHEAST
WINDS WILL CONTINUE...BUT RELATIVE HUMIDITY VALUES ARE EXPECTED TO
REMAIN ABOVE 20 PERCENT. 

$$

NEZ313-WYZ303-304-306-308>310-160000-
/O.CON.KCYS.FW.W.0050.000000T0000Z-120816T0000Z/
SCOTTS BLUFF NATIONAL MONUMENT/WILDCAT HILLS-
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-
1129 AM MDT WED AUG 15 2012

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING
FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 303...
304...306...308...AND 313...

* AFFECTED AREA...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 AND FIRE WEATHER 
  ZONE 313 SCOTTS BLUFF NATIONAL MONUMENT/WILDCAT HILLS.

* WINDS...NORTHWEST 15 TO 25 MPH WITH GUSTS UP TO 40 MPH.

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

* IMPACTS...COMBINATION OF DRY HUMIDITIES AND GUSTY NORTHWEST WINDS
  WILL LEAD TO CRITICAL FIRE WEATHER CONDITIONS LATE THIS MORNING
  AND WILL PERSIST THROUGH THE LATE AFTERNOON. THIS IS MAINLY FOR
  THE LOWER ELEVATIONS IN THE SOUTHERN HALF OF CARBON AND ALBANY
  COUNTIES. 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.

&&

$$

HAMMER
624 
WWUS85 KCYS 151739
RFWCYS

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
1139 AM MDT WED AUG 15 2012

...CORRECTED FOR ZONES WARNED... 

...RED FLAG WARNING FOR STRONG WINDS AND LOW HUMIDITIES FOR FIRE
WEATHER ZONES 303...304...306...308...309...310 AND 313 TODAY...

.A STRONG COLD FRONT WILL CONTINUE TO MOVE SOUTH ACROSS SOUTHEAST
WYOMING AND THE SOUTHERN NEBRASKA PANHANDLE BY EARLY THIS
AFTERNOON. STRONG WEST TO NORTHWEST WINDS WILL GRADUALLY SHIFT TO
THE NORTH AS THE FRONT ADVANCES INTO COLORADO. AFTERNOON HIGHS IN
THE PANHANDLE AND LOWER ELEVATIONS OF SOUTHEAST WYOMING WILL
CLIMB INTO THE UPPER 80S AND LOW 90S...CREATING AFTERNOON
HUMIDITIES IN THE LOW TEENS. HUMIDITIES WILL SLOWLY INCREASE
THROUGH THE MID TO LATE AFTERNOON HOURS...BUT WINDS WILL REMAIN
STRONG THROUGH THE EVENING.

NEZ313-WYZ303-304-306-308>310-160000-
/O.CON.KCYS.FW.W.0050.000000T0000Z-120816T0000Z/
SCOTTS BLUFF NATIONAL MONUMENT/WILDCAT HILLS-
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-
1139 AM MDT WED AUG 15 2012

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING
FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES
303...304...306...308...309...310...AND 313... 

* AFFECTED AREA...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 AND FIRE WEATHER 
  ZONE 313 SCOTTS BLUFF NATIONAL MONUMENT/WILDCAT HILLS.

* WINDS...NORTHWEST 15 TO 25 MPH WITH GUSTS UP TO 40 MPH.

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

* IMPACTS...COMBINATION OF DRY HUMIDITIES AND GUSTY NORTHWEST
  WINDS WILL LEAD TO CRITICAL FIRE WEATHER CONDITIONS LATE THIS
  MORNING AND WILL PERSIST THROUGH THE LATE AFTERNOON. THIS IS
  MAINLY FOR THE LOWER ELEVATIONS IN THE SOUTHERN HALF OF CARBON
  AND ALBANY COUNTIES...AS WELL AS THE SOUTHERN NEBRASKA
  PANHANDLE. 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.

&&

$$

HAMMER
075 
WWUS85 KCYS 152114
RFWCYS

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
314 PM MDT WED AUG 15 2012

...RED FLAG WARNING FOR STRONG WINDS AND LOW HUMIDITIES FOR FIRE
WEATHER ZONES 303...304...306...308 AND 309 THROUGH LATE AFTERNOON...

.A STRONG COLD FRONT MOVED SOUTH ACROSS PARTS OF SOUTHEAST WYOMING
AND THE WESTERN NEBRASKA PANHANDLE THROUGH THE EARLY AFTERNOON
HOURS. GUSTY WEST TO NORTHWEST WINDS HAVE PERSISTED AHEAD OF THIS
FRONT OVER AREAS ALONG AND WEST OF THE LARAMIE RANGE. THIS...ALONG
WITH TEMPERATURES IN THE MIDDLE 80S AND RELATIVE HUMIDITY VALUES
IN THE LOWER TO MIDDLE TEENS HAS RESULTED IN CRITICAL OR NEAR
CRITICAL FIRE WEATHER CONDITIONS. HUMIDITIES WILL SLOWLY INCREASE
THROUGH THE LATE AFTERNOON HOURS...BUT WINDS WILL REMAIN STRONG
THROUGH THE EVENING.

NEZ313-WYZ310-152215-
/O.CAN.KCYS.FW.W.0050.000000T0000Z-120816T0000Z/
SCOTTS BLUFF NATIONAL MONUMENT/WILDCAT HILLS-
PLATTE/GOSHEN/CENTRAL AND EASTERN LARAMIE-
314 PM MDT WED AUG 15 2012

...RED FLAG WARNING IS CANCELLED FOR WIND AND LOW RELATIVE
HUMIDITY FOR FIRE WEATHER ZONES 313 AND 310... 

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

A COOL AND MOIST AIR MASS WILL CONTINUE TO MOVE INTO THE REGION IN
THE WAKE OF A STRONG COLD FRONT. RELATIVE HUMIDITY VALUES ARE
ABOVE 20 PERCENT...AND WILL CONTINUE TO RISE OVER THE NEXT SEVERAL
HOURS. NORTH TO NORTHEAST WINDS OF 15 TO 25 MPH WITH GUSTS AS HIGH
AS 40 MPH WILL REMAIN POSSIBLE THROUGH THE EVENING. 

$$

WYZ303-304-306-308-309-160000-
/O.CON.KCYS.FW.W.0050.000000T0000Z-120816T0000Z/
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-
314 PM MDT WED AUG 15 2012

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING
FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 303...
304...306...308 AND 309... 

* AFFECTED AREA...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...NORTH 15 TO 25 MPH WITH GUSTS UP TO 35 MPH.

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

* IMPACTS...COMBINATION OF DRY HUMIDITIES AND GUSTY NORTHWEST
  WINDS WILL LEAD TO CRITICAL FIRE WEATHER CONDITIONS LATE THIS
  MORNING AND WILL PERSIST THROUGH THE LATE AFTERNOON. THIS IS
  MAINLY FOR THE LOWER ELEVATIONS IN THE SOUTHERN HALF OF CARBON
  AND ALBANY COUNTIES. 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.

&&

$$

HAMMER
081 
WWUS85 KCYS 160008
RFWCYS

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
608 PM MDT WED AUG 15 2012

...THE RED FLAG WARNING FOR PARTS OF SOUTHEAST WYOMING HAS
EXPIRED... 

.COOLER AND MORE HUMID WEATHER HAS MOVED ACROSS SOUTHEAST WYOMING 
LATE THIS AFTERNOON AND EARLY THIS EVENING BEHIND A COLD FRONT.
EVEN THOUGH NORTHERLY WINDS BEHIND THE FRONT WILL GUST AS HIGH
AS 35 MPH THROUGH THE EVENING...THE CRITICAL FIRE WEATHER
CONDITIONS HAVE ENDED OVER SOUTHEAST WYOMING.  

WYZ303-304-306-308-309-160115-
/O.EXP.KCYS.FW.W.0050.000000T0000Z-120816T0000Z/
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-
608 PM MDT WED AUG 15 2012

...RED FLAG WARNING HAS EXPIRED FOR WIND AND LOW RELATIVE
HUMIDITY FOR FIRE WEATHER ZONES 303...304...306...308 AND 309...

A COLD FRONT MOVED ACROSS SOUTHEAST WYOMING EARLIER TODAY.  
BEHIND THE FRONT WAS COOLER AND MORE HUMID WEATHER. THOSE
CONDITIONS WILL PERSIST FOR THE REST OF TONIGHT AND THURSDAY.
FOR THAT REASON...THE RED FLAG WARNING THAT WAS IN EFFECT FOR
PARTS OF SOUTHEAST WYOMING HAS EXPIRED.

$$

WEILAND

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 14, 7:22 PM MDTFire Weather WatchCYS2 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.