Alert archive / Wyoming / Red Flag Warnings in 2012

Red Flag Warning 21, NWS Cheyenne, WY

April 7, 2012

NWS Cheyenne, WY issued this red flag warning at Apr 7, 2012, 8:37 PM MDT. It took effect at Apr 8, 2012, 12:00 PM 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 7, 2012, 8:37 PM MDT (02:37 UTC)
In effect from
Apr 8, 2012, 12:00 PM MDT
Expired
Apr 8, 2012, 7:00 PM MDT
In force
7 hr
Issued by
NWS Cheyenne, WY

The text

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

282 
WWUS85 KCYS 080237
RFWCYS

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
837 PM MDT SAT APR 7 2012

...GUSTY WINDS AND LOW RELATIVE HUMIDITY WILL AFFECT THE LARAMIE
RANGE AND LOWER ELEVATIONS TO THE WEST SUNDAY AFTERNOON AND EARLY
EVENING...

.GUSTY WEST WINDS AND LOW RELATIVE HUMIDITY VALUES WILL CREATE
CRITICAL FIRE WEATHER CONDITIONS FOR THE LARAMIE RANGE AND LOWER
ELEVATIONS TO THE WEST SUNDAY AFTERNOON AND EARLY EVENING.

WYZ303-304-306-308-309-081200-
/O.UPG.KCYS.FW.A.0018.120408T1800Z-120409T0100Z/
/O.NEW.KCYS.FW.W.0021.120408T1800Z-120409T0100Z/
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-
837 PM MDT SAT APR 7 2012

...RED FLAG WARNING IN EFFECT FROM NOON TO 7 PM MDT SUNDAY FOR 
GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR THE LARAMIE RANGE AND 
LOWER ELEVATIONS TO THE WEST...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A RED FLAG
WARNING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY...WHICH IS IN 
EFFECT FROM NOON TO 7 PM MDT SUNDAY. THE FIRE WEATHER WATCH IS NO
LONGER IN EFFECT.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 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...WEST 15 TO 25 MPH WITH GUSTS UP TO 35 MPH.

* TIMING...NOON THROUGH EARLY SUNDAY EVENING.

* RELATIVE HUMIDITY...7 TO 13 PERCENT.

* TEMPERATURES...55 TO 65 DEGREES SUNDAY 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
3 follow-up statements
161 
WWUS85 KCYS 080806
RFWCYS

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
206 AM MDT SUN APR 8 2012

...GUSTY WINDS AND LOW RELATIVE HUMIDITY WILL AFFECT THE LARAMIE
RANGE AND LOWER ELEVATIONS TO THE WEST THIS AFTERNOON AND EARLY
EVENING...

.GUSTY WEST WINDS AND LOW RELATIVE HUMIDITY VALUES WILL PRODUCE
CRITICAL FIRE WEATHER CONDITIONS FOR THE LARAMIE RANGE AND LOWER
ELEVATIONS TO THE WEST THIS AFTERNOON AND EARLY EVENING. WINDS
WILL BEGIN TO DECREASE AFTER SUNSET AND RELATIVE HUMIDITY VALUES
WILL INCREASE AS TEMPERATURES COOL.

WYZ303-304-306-308-309-081615-
/O.CON.KCYS.FW.W.0021.120408T1800Z-120409T0100Z/
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-
206 AM MDT SUN APR 8 2012

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 7 PM MDT
THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR THE
LARAMIE RANGE AND LOWER ELEVATIONS TO THE WEST...

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

* TIMING...NOON THROUGH 7 PM THIS EVENING.

* RELATIVE HUMIDITY...8 TO 13 PERCENT.

* TEMPERATURES...55 TO 65 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.

&&

$$

FINCH
319 
WWUS85 KCYS 081607
RFWCYS

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
1007 AM MDT SUN APR 8 2012

...GUSTY WINDS AND LOW RELATIVE HUMIDITY WILL AFFECT THE SOUTHERN
LARAMIE RANGE AND LOWER ELEVATIONS TO THE WEST THIS AFTERNOON
AND EARLY EVENING...

.GUSTY WESTERLY WINDS AND LOW RELATIVE HUMIDITY VALUES WILL
PRODUCE CRITICAL FIRE WEATHER CONDITIONS FOR THE SOUTHERN LARAMIE
RANGE AND LOWER ELEVATIONS TO THE WEST THIS AFTERNOON AND EARLY
EVENING. WINDS WILL BEGIN TO DECREASE AFTER SUNSET AND RELATIVE
HUMIDITY VALUES WILL INCREASE AS TEMPERATURES COOL.

WYZ303-304-306-308-309-090100-
/O.CON.KCYS.FW.W.0021.120408T1800Z-120409T0100Z/
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-
1007 AM MDT SUN APR 8 2012

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM MDT THIS EVENING
FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR THE SOUTHERN LARAMIE
RANGE AND LOWER ELEVATIONS TO THE WEST...

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

* TIMING...NOON THROUGH 7 PM THIS EVENING.

* RELATIVE HUMIDITY...AS LOW AS 8 PERCENT.

* TEMPERATURES...IN THE UPPER 50S TO LOW 60S.

* 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.

&&

$$

RJM
767 
WWUS85 KCYS 090057
RFWCYS

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
657 PM MDT SUN APR 8 2012

...RED FLAG WARNING WILL EXPIRE AT 7 PM MDT THIS EVENING...

.DECREASING WINDS...COOLER TEMPERATURES AND SLOWLY INCREASING
HUMIDITY VALUES WILL PUT AN END TO THE CRITICAL FIRE WEATHER
THREAT THIS EVENING.

WYZ303-304-306-308-309-090200-
/O.EXP.KCYS.FW.W.0021.000000T0000Z-120409T0100Z/
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-
657 PM MDT SUN APR 8 2012

...RED FLAG WARNING WILL EXPIRE AT 7 PM MDT THIS EVENING FOR
GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR THE SOUTHERN LARAMIE
RANGE AND LOWER ELEVATIONS TO THE WEST...

WINDS WILL DIMINISH AND RELATIVE HUMIDITY VALUES WILL RISE ABOVE
15 PERCENT THIS EVENING...THEREFORE ENDING THE CRITICAL FIRE
WEATHER THREAT.

$$

JAMSKI

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.