Alert archive / Wyoming / Red Flag Warnings in 2012

Red Flag Warning 23, NWS Cheyenne, WY

April 10, 2012

NWS Cheyenne, WY issued this red flag warning at Apr 10, 2012, 2:36 PM MDT. It took effect at Apr 11, 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: Apr 10, 2012, 2:36 PM MDT (20:36 UTC)
In effect from: Apr 11, 2012, 11:00 AM MDT
Expired: Apr 11, 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.

057 
WWUS85 KCYS 102036
RFWCYS

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
236 PM MDT TUE APR 10 2012

...CRITICAL FIRE WEATHER CONDITIONS ACROSS LOWER ELEVATIONS OF
CARBON COUNTY WEDNESDAY AFTERNOON...

.STRONG WINDS WILL RETURN LATE WEDNESDAY MORNING ACROSS CARBON
COUNTY IN SOUTHEAST WYOMING. THIS AHEAD OF A COLD FRONT SET TO
MOVE INTO THE AREA WEDNESDAY EVENING. THE COMBINATION OF STRONG
WINDS AND AFTERNOON HUMIDITIES OF AROUND 10 PERCENT WILL CAUSE
CRITICAL FIRE CONDITIONS. IN ADDITION...THERE IS A CHANCE FOR
WIDELY SCATTERED DRY THUNDERSTORMS OR THUNDERSTORMS PRODUCING VERY
LITTLE RAINFALL THAT COULD CREATE FIRE STARTS AND ERRATIC FIRE
BEHAVIOR. CONDITIONS ARE EXPECTED TO SIGNIFICANTLY IMPROVE
WEDNESDAY EVENING WITH BETTER CHANCES OF WETTING RAINS AND HIGHER
HUMIDITIES.

WYZ308-102145-
/O.CAN.KCYS.FW.A.0019.120411T1700Z-120412T0000Z/
LARAMIE VALLEY/SHIRLEY BASIN-
236 PM MDT TUE APR 10 2012

...FIRE WEATHER WATCH IS CANCELLED FOR GUSTY WINDS AND LOW
HUMIDITY FOR THE LARAMIE VALLEY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS CANCELLED THE FIRE
WEATHER WATCH.

HUMIDITIES ARE NOW EXPECTED TO REMAIN ABOVE CRITICAL THRESHOLDS
ACROSS THE LARAMIE VALLEY ON WEDNESDAY. THEREFORE...THE FIRE
WEATHER WATCH HAS BEEN CANCELLED.

$$

WYZ303-304-306-111100-
/O.UPG.KCYS.FW.A.0019.120411T1700Z-120412T0000Z/
/O.NEW.KCYS.FW.W.0023.120411T1700Z-120412T0000Z/
CENTRAL AND NORTHERN CARBON/FERRIS-SEMINOE-SHIRLEY MOUNTAINS-
SOUTHWEST CARBON-UPPER NORTH PLATTE RIVER BASIN-
236 PM MDT TUE APR 10 2012

...RED FLAG WARNING IN EFFECT FROM 11 AM TO 6 PM MDT WEDNESDAY
FOR GUSTY WINDS AND LOW HUMIDITY FOR THE LOWER ELEVATIONS OF
CARBON COUNTY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A RED FLAG
WARNING FOR GUSTY WINDS AND LOW 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 THE FIRE WEATHER WATCH IS NO
LONGER IN EFFECT.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 303 CENTRAL AND NORTHERN 
  CARBON/FERRIS-SEMINOE-SHIRLEY MOUNTAINS...FIRE WEATHER ZONE 
  304 SOUTHWEST CARBON AND FIRE WEATHER ZONE 306 UPPER NORTH 
  PLATTE RIVER BASIN.

* WINDS...SOUTH/SOUTHWEST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH.

* TIMING...11 AM WEDNESDAY MORNING THROUGH 6 PM WEDNESDAY 
  EVENING.

* RELATIVE HUMIDITY...AS LOW AS 10 PERCENT.

* TEMPERATURES...IN THE LOW 70S.

* LIGHTNING...WIDELY SCATTERED DRY THUNDERSTORMS ARE POSSIBLE 
  WEDNESDAY AFTERNOON. 

* IMPACTS...WINDY AND DRY WEATHER COMBINED WITH DORMANT GRASSES 
  WILL PRODUCE CRITICAL FIRE WEATHER CONDITIONS. RAPID FIRE 
  GROWTH MAY OCCUR FOR ANY FIRES THAT INITIATE. 

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

4 follow-up statements

885 
WWUS85 KCYS 110011
RFWCYS

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
611 PM MDT TUE APR 10 2012

...CRITICAL FIRE WEATHER CONDITIONS ACROSS LOWER ELEVATIONS OF
CARBON COUNTY WEDNESDAY AFTERNOON...

.STRONG WINDS WILL RETURN LATE WEDNESDAY MORNING ACROSS CARBON
COUNTY...AHEAD OF A COLD FRONT THAT WILL MOVE EAST INTO THE AREA
WEDNESDAY EVENING. THE COMBINATION OF STRONG WINDS AND AFTERNOON
HUMIDITIES OF AROUND 10 PERCENT WILL CAUSE CRITICAL FIRE
CONDITIONS. ALSO...THERE IS A CHANCE FOR WIDELY SCATTERED DRY
THUNDERSTORMS OR THUNDERSTORMS PRODUCING VERY LITTLE RAINFALL 
THAT COULD CREATE FIRE STARTS AND ERRATIC FIRE BEHAVIOR.
CONDITIONS ARE EXPECTED TO SIGNIFICANTLY IMPROVE WEDNESDAY 
EVENING WITH BETTER CHANCES OF WETTING RAINS AND HIGHER
HUMIDITIES.

WYZ303-304-306-111300-
/O.CON.KCYS.FW.W.0023.120411T1700Z-120412T0000Z/
CENTRAL AND NORTHERN CARBON/FERRIS-SEMINOE-SHIRLEY MOUNTAINS-
SOUTHWEST CARBON-UPPER NORTH PLATTE RIVER BASIN-
611 PM MDT TUE APR 10 2012

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM TO 6 PM MDT
WEDNESDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR THE LOWER
ELEVATIONS OF CARBON COUNTY...

* AFFECTED AREA...FIRE WEATHER ZONE 303 CENTRAL AND NORTHERN 
  CARBON/FERRIS-SEMINOE-SHIRLEY MOUNTAINS...FIRE WEATHER ZONE 
  304 SOUTHWEST CARBON AND FIRE WEATHER ZONE 306 UPPER NORTH 
  PLATTE RIVER BASIN.

* WINDS...SOUTH TO SOUTHWEST 15 TO 25 MPH WITH GUSTS UP TO 35
  MPH.

* TIMING...LATE WEDNESDAY MORNING THROUGH LATE WEDNESDAY
  AFTERNOON.

* RELATIVE HUMIDITY...AS LOW AS 10 PERCENT.

* TEMPERATURES...IN THE LOWER 70S.

* LIGHTNING...WIDELY SCATTERED DRY THUNDERSTORMS MAY DEVELOP
  WEDNESDAY AFTERNOON.

* IMPACTS...WINDY AND DRY WEATHER COMBINED WITH DORMANT GRASSES 
  WILL PRODUCE CRITICAL FIRE WEATHER CONDITIONS. RAPID FIRE 
  GROWTH MAY OCCUR FOR ANY FIRES THAT INITIATE. 

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.

&&

$$

JAMSKI

360 
WWUS85 KCYS 110855
RFWCYS

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
255 AM MDT WED APR 11 2012

...CRITICAL FIRE WEATHER CONDITIONS ACROSS LOWER ELEVATIONS OF
CARBON COUNTY WEDNESDAY AFTERNOON...

.STRONG WINDS WILL RETURN LATE THIS MORNING ACROSS CARBON
COUNTY...AHEAD OF A COLD FRONT THAT WILL MOVE EAST INTO THE AREA
BY THIS EVENING. THE COMBINATION OF STRONG WINDS AND AFTERNOON
HUMIDITIES OF AROUND 10 PERCENT WILL CAUSE CRITICAL FIRE
CONDITIONS. ALSO...THERE IS A CHANCE FOR WIDELY SCATTERED DRY
THUNDERSTORMS OR THUNDERSTORMS PRODUCING VERY LITTLE RAINFALL THAT
COULD CREATE FIRE STARTS AND ERRATIC FIRE BEHAVIOR. CONDITIONS ARE
EXPECTED TO SIGNIFICANTLY IMPROVE THIS EVENING WITH BETTER
CHANCES OF WETTING RAINS AND HIGHER HUMIDITIES.

WYZ303-304-306-120000-
/O.CON.KCYS.FW.W.0023.120411T1700Z-120412T0000Z/
CENTRAL AND NORTHERN CARBON/FERRIS-SEMINOE-SHIRLEY MOUNTAINS-
SOUTHWEST CARBON-UPPER NORTH PLATTE RIVER BASIN-
255 AM MDT WED APR 11 2012

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO
6 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR THE
LOWER ELEVATIONS OF CARBON COUNTY...

* AFFECTED AREA...FIRE WEATHER ZONE 303 CENTRAL AND NORTHERN 
  CARBON/FERRIS-SEMINOE-SHIRLEY MOUNTAINS...FIRE WEATHER ZONE 
  304 SOUTHWEST CARBON AND FIRE WEATHER ZONE 306 UPPER NORTH 
  PLATTE RIVER BASIN.

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

* TIMING...LATE WEDNESDAY MORNING THROUGH LATE WEDNESDAY 
  AFTERNOON. 

* RELATIVE HUMIDITY...AS LOW AS 10 PERCENT.

* TEMPERATURES...IN THE LOW 70S.

* LIGHTNING...WIDELY SCATTERED DRY THUNDERSTORMS MAY DEVELOP THIS 
  AFTERNOON.

* IMPACTS...WINDY AND DRY WEATHER COMBINED WITH DORMANT GRASSES 
  WILL PRODUCE CRITICAL FIRE WEATHER CONDITIONS. RAPID FIRE 
  GROWTH MAY OCCUR FOR ANY FIRES THAT INITIATE. 

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.

&&

$$

961 
WWUS85 KCYS 111946
RFWCYS

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
146 PM MDT WED APR 11 2012

...CRITICAL FIRE WEATHER CONDITIONS ACROSS LOWER ELEVATIONS OF
CARBON COUNTY WEDNESDAY AFTERNOON...

.GUSTY WINDS WILL CONTINUE ACROSS CARBON COUNTY...AHEAD OF A COLD
FRONT THAT WILL MOVE EAST INTO THE AREA BY THIS EVENING. GUSTY
WINDS COMBINED WITH LOW AFTERNOON HUMIDITIES WILL RESULT IN CRITICAL
FIRE WEATHER CONDITIONS THIS AFTERNOON. CONDITIONS ARE EXPECTED
TO SIGNIFICANTLY IMPROVE WITH BETTER CHANCES OF WETTING RAINS AND
HIGHER HUMIDITIES STARTING THIS EVENING AND CONTINUING THROUGH THE 
WEEKEND.

WYZ303-304-306-120000-
/O.CON.KCYS.FW.W.0023.000000T0000Z-120412T0000Z/
CENTRAL AND NORTHERN CARBON/FERRIS-SEMINOE-SHIRLEY MOUNTAINS-
SOUTHWEST CARBON-UPPER NORTH PLATTE RIVER BASIN-
146 PM MDT WED APR 11 2012

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING
FOR GUSTY WINDS AND LOW HUMIDITY FOR THE LOWER ELEVATIONS OF
CARBON COUNTY...

* AFFECTED AREA...FIRE WEATHER ZONE 303 CENTRAL AND NORTHERN 
  CARBON/FERRIS-SEMINOE-SHIRLEY MOUNTAINS...FIRE WEATHER ZONE 
  304 SOUTHWEST CARBON AND FIRE WEATHER ZONE 306 UPPER NORTH 
  PLATTE RIVER BASIN.

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

* TIMING...LATE WEDNESDAY MORNING THROUGH LATE WEDNESDAY 
  AFTERNOON. 

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

* TEMPERATURES...AROUND 70 DEGREES.

* IMPACTS...WINDY AND DRY WEATHER COMBINED WITH DORMANT GRASSES 
  WILL PRODUCE CRITICAL FIRE WEATHER CONDITIONS. RAPID FIRE 
  GROWTH MAY OCCUR FOR ANY FIRES THAT INITIATE. 

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.

&&

$$

828 
WWUS85 KCYS 120001
RFWCYS

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
601 PM MDT WED APR 11 2012

...COLD FRONT AND SCATTERED RAIN SHOWERS TO MOVE THROUGH THE AREA
THIS EVENING...

.TEMPERATURES WILL CONTINUE TO FALL AS HUMIDITY RECOVERS THIS
EVENING. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS WILL MOVE
ACROSS THE AREA THIS EVENING PRODUCING SOME WETTING RAINS. A FEW
DRY LIGHTING STRIKES ARE NOT COMPLETELY OUT OF THE QUESTION EARLY
THIS EVENING BUT GENERALLY THUNDERSTORMS SHOULD  BE ACCOMPANIED BY
WETTING RAINS. 

WYZ303-304-306-120115-
/O.EXP.KCYS.FW.W.0023.000000T0000Z-120412T0000Z/
CENTRAL AND NORTHERN CARBON/FERRIS-SEMINOE-SHIRLEY MOUNTAINS-
SOUTHWEST CARBON-UPPER NORTH PLATTE RIVER BASIN-
601 PM MDT WED APR 11 2012

...RED FLAG WARNING WILL EXPIRE AT 6 PM MDT THIS EVENING...

TEMPERATURES WILL CONTINUE TO FALL AS HUMIDITY RECOVERS THIS
EVENING. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS WILL MOVE
ACROSS THE AREA THIS EVENING PRODUCING SOME WETTING RAINS. A FEW
DRY LIGHTING STRIKES ARE NOT COMPLETELY OUT OF THE QUESTION EARLY
THIS EVENING BUT GENERALLY THUNDERSTORMS SHOULD BE ACCOMPANIED BY
WETTING RAINS.

$$
LIEBL

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 10, 2:15 AM MDT	Fire Weather Watch	CYS		12 hr

Nearby

Red Flag Warnings in Wyoming, 2012 Every 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.