Alert archive / Wyoming / Red Flag Warnings in 2012

Red Flag Warning 67, NWS Cheyenne, WY

October 1, 2012

NWS Cheyenne, WY issued this red flag warning at Oct 1, 2012, 3:00 PM MDT. It took effect at Oct 2, 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
Oct 1, 2012, 3:00 PM MDT (21:00 UTC)
In effect from
Oct 2, 2012, 12:00 PM MDT
Expired
Oct 2, 2012, 7:25 PM MDT
In force
7 hr
Issued by
NWS Cheyenne, WY

The text

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

556 
WWUS85 KCYS 012100
RFWCYS

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
300 PM MDT MON OCT 1 2012

...CRITICAL FIRE WEATHER CONDITIONS EXPECTED ACROSS MUCH OF
SOUTHEAST WYOMING ON TUESDAY...

.WARM...DRY AND BREEZY CONDITIONS WILL DEVELOP ON TUESDAY AHEAD OF
A COLD FRONT THAT WILL MOVE THROUGH THE REGION ON WEDNESDAY
MORNING. HUMIDITIES WILL NOT RECOVER MUCH TONIGHT...WHICH WILL
PRIME HUMIDITIES TO DROP INTO THE LOW TEENS ON TUESDAY AFTERNOON.
ADDITIONALLY...WEST WINDS WILL GUST 25 TO 40 MPH IN THE AFTERNOON.

WYZ301>304-306-308>310-021200-
/O.UPG.KCYS.FW.A.0053.121002T1800Z-121003T0300Z/
/O.NEW.KCYS.FW.W.0067.121002T1800Z-121003T0300Z/
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-
PLATTE/GOSHEN/CENTRAL AND EASTERN LARAMIE-
300 PM MDT MON OCT 1 2012

...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT TUESDAY FOR
WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 301...302...
303...304...306...308...309 AND 310...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A RED FLAG
WARNING FOR WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN EFFECT
FROM NOON TO 9 PM MDT TUESDAY. THE FIRE WEATHER WATCH IS NO
LONGER IN EFFECT.

* 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 306 UPPER NORTH PLATTE RIVER BASIN...FIRE 
  WEATHER ZONE 308 LARAMIE VALLEY/SHIRLEY BASIN...FIRE WEATHER 
  ZONE 309 SOUTH LARAMIE RANGE/MEDICINE BOW NF AND FIRE WEATHER 
  ZONE 310 PLATTE/GOSHEN/CENTRAL AND EASTERN LARAMIE.

* WINDS...WEST 15 TO 25 MPH WITH GUSTS 25 TO 40 MPH.

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

* IMPACTS...GUSTY WINDS AND VERY LOW HUMIDITIES WILL RESULT IN THE
  POSSIBILITY OF RAPID FIRE GROWTH ACROSS THE AREA....WITH
  PARTICULAR CONCERN ALONG AND WEST OF INTERSTATE 25.

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
3 follow-up statements
919 
WWUS85 KCYS 020806
RFWCYS

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
206 AM MDT TUE OCT 2 2012

...CRITICAL FIRE WEATHER CONDITIONS ACROSS MUCH OF SOUTHEAST
WYOMING TODAY...

.WARM...DRY AND WINDY CONDITIONS WILL DEVELOP WELL AHEAD OF A COLD
FRONT THAT WILL MOVE THROUGH THE REGION ON WEDNESDAY MORNING. WEST
WINDS WILL INCREASE THROUGH NOON TODAY WITH GUSTS BETWEEN 30 TO 40
MPH LIKELY IN THE AFTERNOON.


WYZ301>304-306-308>310-022130-
/O.CON.KCYS.FW.W.0067.121002T1800Z-121003T0300Z/
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-
PLATTE/GOSHEN/CENTRAL AND EASTERN LARAMIE-
206 AM MDT TUE OCT 2 2012

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 9 PM MDT
THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY ACROSS MOST OF
SOUTHEAST WYOMING...

* 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 306 UPPER NORTH PLATTE RIVER BASIN...FIRE 
  WEATHER ZONE 308 LARAMIE VALLEY/SHIRLEY BASIN...FIRE WEATHER 
  ZONE 309 SOUTH LARAMIE RANGE/MEDICINE BOW NF AND FIRE WEATHER 
  ZONE 310 PLATTE/GOSHEN/CENTRAL AND EASTERN LARAMIE.

* WINDS...WEST 15 TO 30 MPH WITH GUSTS UP TO 40 MPH.

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

* IMPACTS...GUSTY WINDS AND LOW HUMIDITIES WILL RESULT IN THE
  POSSIBILITY OF RAPID FIRE GROWTH ACROSS THE AREA....WITH
  PARTICULAR CONCERN ALONG AND WEST OF INTERSTATE 25.

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.

&&

$$

TT
715 
WWUS85 KCYS 021943
RFWCYS

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
143 PM MDT TUE OCT 2 2012

...CRITICAL OR NEAR CRITICAL FIRE WEATHER CONDITIONS ACROSS PARTS 
OF SOUTHEAST WYOMING INTO EARLY THIS EVENING...

.WARM...DRY AND WINDY CONDITIONS WILL PERSIST INTO THIS EVENING
BEFORE DIMINISHING. WEST WINDS OF 15 TO 25 MPH WITH GUSTS BETWEEN
30 TO 40 MPH WILL OCCUR IN SOME AREAS...GENERALLY WEST OF
INTERSTATE 25.

WYZ301>304-306-308>310-030300-
/O.CON.KCYS.FW.W.0067.000000T0000Z-121003T0300Z/
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-
PLATTE/GOSHEN/CENTRAL AND EASTERN LARAMIE-
143 PM MDT TUE OCT 2 2012

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING
FOR WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 301...
302...303...304...306...308...309 AND 310...

* 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 306 UPPER NORTH PLATTE RIVER BASIN...FIRE 
  WEATHER ZONE 308 LARAMIE VALLEY/SHIRLEY BASIN...FIRE WEATHER 
  ZONE 309 SOUTH LARAMIE RANGE/MEDICINE BOW NF AND FIRE WEATHER 
  ZONE 310 PLATTE/GOSHEN/CENTRAL AND EASTERN LARAMIE.

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

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

* IMPACTS...GUSTY WINDS AND LOW HUMIDITIES WILL RESULT IN THE
  POSSIBILITY OF RAPID FIRE GROWTH ACROSS THE AREA....WITH MOST
  CONCERNS WEST OF INTERSTATE 25.

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.

&&

$$
811 
WWUS85 KCYS 030125
RFWCYS

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
725 PM MDT TUE OCT 2 2012

...THE RED FLAG WARNING FOR MUCH OF SOUTHEAST WYOMING HAS BEEN
CANCELLED...

.WINDS OVER SOUTHEAST WYOMING HAVE DECREASED SINCE THE LATE 
AFTERNOON AND RELATIVE HUMIDITY VALUES HAVE SLOWLY INCREASED. 
THE CRITICAL FIRE WEATHER CONDITIONS OVER SOUTHEAST WYOMING HAVE
ENDED AND SO THE RED FLAG WARNING HAS BEEN CANCELLED. 

WYZ301>304-306-308>310-030230-
/O.CAN.KCYS.FW.W.0067.000000T0000Z-121003T0300Z/
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-
PLATTE/GOSHEN/CENTRAL AND EASTERN LARAMIE-
725 PM MDT TUE OCT 2 2012

...RED FLAG WARNING IS CANCELLED FOR WIND AND LOW RELATIVE
HUMIDITY FOR FIRE WEATHER ZONES 301...302...303...304...306...
308...309 AND 310...

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

THE CRITICAL FIRE WEATHER CONDITIONS HAVE ENDED OVER SOUTHEAST
WYOMING EARLY THIS EVENING. THE SURFACE WINDS HAVE DECREASED AND
RELATIVE HUMIDITY VALUES HAVE SLOWLY INCREASED OVER THE AREA.  
FOR THOSE REASONS...THE RED FLAG WARNING HAS BEEN CANCELLED FOR
MUCH OF SOUTHEAST WYOMING. 

$$

WEILAND

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 1, 3:03 AM MDTFire Weather WatchCYS12 hr

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.