Alert archive / Wyoming / Red Flag Warnings in 2012

Red Flag Warning 49, NWS Cheyenne, WY

August 14, 2012

NWS Cheyenne, WY issued this red flag warning at Aug 14, 2012, 4:25 AM MDT. It took effect at Aug 14, 2012, 11:00 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 14, 2012, 4:25 AM MDT (10:25 UTC)
In effect from
Aug 14, 2012, 11:00 AM MDT
Expired
Aug 14, 2012, 7:22 PM MDT
In force
8 hr
Issued by
NWS Cheyenne, WY

The text

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

364 
WWUS85 KCYS 141025
RFWCYS

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
425 AM MDT TUE AUG 14 2012

...VERY DRY HUMIDITIES AND GUSTY WEST WINDS WILL PRODUCE RED FLAG
CONDITIONS ACROSS PORTIONS OF SOUTHEAST WYOMING TODAY...

.WARMING TEMPERATURES COMBINED WITH DRY NORTHWEST FLOW ALOFT AND
NEAR THE SURFACE WILL ALLOW HUMIDITIES TO DROP INTO THE UPPER
SINGLE DIGITS TO LOW TEENS THROUGH THE AFTERNOON. A WEAK
DISTURBANCE MOVING OVERHEAD WILL INCREASE WEST WINDS THROUGH THE
MORNING...WITH GUSTS OF 20 TO 30 MPH EXPECTED THROUGH THE
AFTERNOON. THE COMBINATION OF DRY AND WINDY CONDITIONS WILL CREATE
HAZARDOUS FIRE WEATHER CONDITIONS...SPECIFICALLY IN THE LOWER
ELEVATIONS AND FOOTHILLS WEST OF THE INTERSTATE 25 CORRIDOR...AND
MUCH OF CONVERSE COUNTY.

WYZ301>309-142200-
/O.NEW.KCYS.FW.W.0049.120814T1700Z-120815T0200Z/
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-
425 AM MDT TUE AUG 14 2012

...RED FLAG WARNING IN EFFECT FROM 11 AM THIS MORNING TO 8 PM MDT
THIS EVENING FOR WIND 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 RED FLAG
WARNING FOR WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN EFFECT
FROM 11 AM THIS MORNING TO 8 PM MDT THIS EVENING.

* 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 AND FIRE WEATHER ZONE 
  309 SOUTH LARAMIE RANGE/MEDICINE BOW NF.

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

* RELATIVE HUMIDITY...AS LOW AS 9 PERCENT.

* IMPACTS...COMBINATION OF DRY HUMIDITIES AND GUSTY WEST WINDS
  WILL LEAD TO CRITICAL FIRE WEATHER CONDITIONS IN THE LOWER
  ELEVATIONS AND FOOTHILLS WEST OF THE INTERSTATE 25 CORRIDOR...IN
  ADDITION TO MUCH OF CONVERSE COUNTY. THERE WILL BE AN INCREASED
  THREAT FOR RAPID FIRE SPREAD THROUGH THE AFTERNOON.

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
2 follow-up statements
901 
WWUS85 KCYS 142006
RFWCYS

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

...LOW RELATIVE HUMIDITY AND GUSTY WINDS WILL PRODUCE CRITICAL
FIRE WEATHER CONDITIONS ACROSS PORTIONS OF SOUTHEAST WYOMING
THROUGH EARLY THIS EVENING...

.WARM TEMPERATURES COMBINED WITH DRY WESTERLY WINDS WILL CAUSE
THE RELATIVE HUMIDITY TO FALL INTO THE UPPER SINGLE DIGITS AND
LOWER TEENS THIS AFTERNOON. A WEAK DISTURBANCE MOVING OVERHEAD
WILL INCREASE WESTERLY WINDS THIS AFTERNOON...WITH GUSTS OF 20 
TO 30 MPH. THE DRY...WARM AND WINDY CONDITIONS WILL CREATE
CRITICAL FIRE WEATHER CONDITIONS...MAINLY FOR THE LOWER 
ELEVATIONS AND FOOTHILLS WEST OF THE INTERSTATE 25 CORRIDOR AS
WELL AS MUCH OF CONVERSE COUNTY.

WYZ301>309-150200-
/O.CON.KCYS.FW.W.0049.000000T0000Z-120815T0200Z/
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-
206 PM MDT TUE AUG 14 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 AND 309...

* 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 AND FIRE WEATHER ZONE 
  309 SOUTH LARAMIE RANGE/MEDICINE BOW NF.

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

* RELATIVE HUMIDITY...MINIMUM AROUND 10 PERCENT.

* IMPACTS...COMBINATION OF DRY HUMIDITIES AND GUSTY WESTERLY WINDS
  WILL LEAD TO CRITICAL FIRE WEATHER CONDITIONS IN THE LOWER
  ELEVATIONS AND FOOTHILLS WEST OF THE INTERSTATE 25 CORRIDOR...
  IN ADDITION TO MUCH OF CONVERSE COUNTY. THERE WILL BE AN
  INCREASED THREAT FOR RAPID FIRE SPREAD THIS AFTERNOON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
GUSTY WINDS...LOW RELATIVE HUMIDITY...AND WARM TEMPERATURES WILL
CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

&&

$$

JAMSKI
197 
WWUS85 KCYS 150122
RFWCYS

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

...RED FLAG WARNING CANCELLED FOR FIRE WEATHER ZONES 301 THROUGH
309 TONIGHT...

...FIRE WEATHER WATCH FOR STRONG WINDS AND LOW HUMIDITIES FIRE
WEATHER ZONES 309...310...312 AND 313 WEDNESDAY...

.AREA WIND REPORTS SHOW WINDS DYING OFF THIS EVENING. HAVE OPTED
TO CANCEL THE RED FLAG WARNING EARLY. 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. HAVE OPTED TO ISSUE A FIRE WEATHER WATCH TO COVER THIS
EVENT WEDNESDAY AFTERNOON.

WYZ309-151200-
/O.CAN.KCYS.FW.W.0049.000000T0000Z-120815T0200Z/
/O.NEW.KCYS.FW.A.0039.120815T1700Z-120816T0000Z/
SOUTH LARAMIE RANGE/MEDICINE BOW NF-
722 PM MDT TUE AUG 14 2012

...FIRE WEATHER WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH
WEDNESDAY AFTERNOON FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE
WEATHER ZONE 309...
...RED FLAG WARNING IS CANCELLED FOR WIND AND LOW RELATIVE
HUMIDITY FOR FIRE WEATHER ZONE 309...

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. THE
RED FLAG WARNING HAS BEEN CANCELLED.

* AFFECTED AREA...FIRE WEATHER ZONE 309 SOUTH LARAMIE 
  RANGE/MEDICINE BOW NF.

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

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

* IMPACTS...COMBINATION OF DRY HUMIDITIES AND GUSTY NORTHWESTERLY
  WINDS MAY LEAD TO CRITICAL FIRE WEATHER CONDITIONS IN THE LOWER
  ELEVATIONS AND FOOTHILLS WEST OF THE INTERSTATE 25 CORRIDOR AND
  THE SOUTHERN LARAMIE RANGE WEDNESDAY LATE MORNING THROUGH MUCH
  OF THE AFTERNOON. THERE WILL BE AN INCREASED THREAT FOR RAPID
  FIRE SPREAD WEDNESDAY.

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.

&&

$$

WYZ301>308-150230-
/O.CAN.KCYS.FW.W.0049.000000T0000Z-120815T0200Z/
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-
722 PM MDT TUE AUG 14 2012

...RED FLAG WARNING IS CANCELLED FOR WIND AND LOW RELATIVE
HUMIDITY FOR FIRE WEATHER ZONES 301...302...303...304...305...
306...307 AND 308...

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

WINDS HAVE BEGUN TO DECREASE EARLY THIS EVENING AND HAVE FALLEN
BELOW CRITICAL LEVELS. THEREFORE...THE RED FLAG WARNING HAS BEEN
CANCELLED.

$$

NEZ312-313-WYZ310-151200-
/O.NEW.KCYS.FW.A.0039.120815T1700Z-120816T0000Z/
BOX BUTTE/SOUTH SIOUX-
SCOTTS BLUFF NATIONAL MONUMENT/WILDCAT HILLS-
PLATTE/GOSHEN/CENTRAL AND EASTERN LARAMIE-
722 PM MDT TUE AUG 14 2012

...FIRE WEATHER WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH
WEDNESDAY AFTERNOON FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE
WEATHER ZONES 310...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 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 10 PERCENT.

* IMPACTS...COMBINATION OF DRY HUMIDITIES AND GUSTY NORTHWESTERLY
  WINDS MAY 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 FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE FORECAST TO OCCUR. LISTEN FOR LATER FORECASTS AND POSSIBLE
RED FLAG WARNINGS.

&&

$$

Nearby

Red Flag Warnings in Wyoming, 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.