Alert archive / Wyoming / Red Flag Warnings in 2010

Red Flag Warning 21, NWS Cheyenne, WY

September 11, 2010

NWS Cheyenne, WY issued this red flag warning at Sep 11, 2010, 3:45 AM MDT. It took effect at Sep 11, 2010, 10:00 AM MDT. It was in force for 9 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
Sep 11, 2010, 3:45 AM MDT (09:45 UTC)
In effect from
Sep 11, 2010, 10:00 AM MDT
Expired
Sep 11, 2010, 7:00 PM MDT
In force
9 hr
Issued by
NWS Cheyenne, WY

The text

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

107 
WWUS85 KCYS 110945
RFWCYS

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
345 AM MDT SAT SEP 11 2010

.GUSTY WINDS ARE EXPECTED TO DEVELOP OVER PARTS OF EAST CENTRAL
WYOMING BY LATE THIS MORNING AND PERSIST FOR MUCH OF THE AFTERNOON.
THE WINDS COMBINED WITH LOW RELATIVE HUMIDITIES WILL CREATE THE
POTENTIAL FOR RAPID FIRE GROWTH.

WYZ302-309-310-111045-
/O.CAN.KCYS.FW.A.0013.100911T1600Z-100912T0200Z/
NORTH LARAMIE RANGE/MEDICINE BOW NF-
SOUTH LARAMIE RANGE/MEDICINE BOW NF-
PLATTE/GOSHEN/CENTRAL AND EASTERN LARAMIE-
345 AM MDT SAT SEP 11 2010

...FIRE WEATHER WATCH IS CANCELLED FOR FIRE WEATHER ZONES
302...309 AND 310...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS CANCELLED THE FIRE
WEATHER WATCH. CURRENT INDICATIONS ARE THAT WINDS AND/OR RELATIVE
HUMIDITIES WILL GENERALLY NOT REACH CRITICAL THRESHOLDS OVER THE
AREA THIS AFTERNOON.

$$

WYZ301-120000-
/O.UPG.KCYS.FW.A.0013.100911T1600Z-100912T0200Z/
/O.NEW.KCYS.FW.W.0021.100911T1600Z-100912T0000Z/
NIOBRARA/LOWER ELEVATIONS OF CONVERSE/THUNDER BASIN NATIONAL
GRASSLAND-
345 AM MDT SAT SEP 11 2010

...RED FLAG WARNING IN EFFECT FROM 10 AM THIS MORNING TO 6 PM MDT
THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITIES FOR FIRE
WEATHER ZONE 301...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 10 AM THIS MORNING TO 6 PM MDT
THIS EVENING. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. 

* AFFECTED AREA...IN WYOMING...FIRE WEATHER ZONE 301.

* WIND...WEST AT 12 TO 20 MPH WITH GUSTS UP TO 30 MPH.

* HUMIDITY...10 TO 15 PERCENT BY AFTERNOON.

* IMPACTS...THE COMBINATION OF STRONG AND GUSTY WINDS COMBINED 
  WITH LOW HUMIDITIES WILL CREATE THE POTENTIAL FOR RAPID FIRE 
  GROWTH.

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.

&&

$$
3 follow-up statements
811 
WWUS85 KCYS 112013
RFWCYS

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
213 PM MDT SAT SEP 11 2010

...RED FLAG WARNING IN EFFECT UNTIL 6 PM MDT THIS EVENING FOR
GUSTY WINDS AND LOW RELATIVE HUMIDITIES FOR FIRE WEATHER ZONES
301...302 AND 307...

.GUSTY WESTERLY WINDS AND LOW RELATIVE HUMIDITIES WILL ENHANCE THE
RAPID FIRE GROWTH OVER PORTIONS OF SOUTH AND SOUTHEAST WYOMING.

WYZ302-307-120000-
/O.EXA.KCYS.FW.W.0021.000000T0000Z-100912T0000Z/
NORTH LARAMIE RANGE/MEDICINE BOW NF-SNOWY RANGE/MEDICINE BOW NF-
213 PM MDT SAT SEP 11 2010

...RED FLAG WARNING IN EFFECT UNTIL 6 PM MDT THIS EVENING FOR GUSTY
WINDS AND LOW RELATIVE HUMIDITIES FOR FIRE WEATHER ZONES 302 AND
307...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT UNTIL 6 PM MDT THIS EVENING. 

* AFFECTED AREA...IN WYOMING...FIRE WEATHER ZONES 302 AND 307.

* WIND...WEST AT 15 TO 25 MPH WITH GUSTS UP TO 30 MPH.

* HUMIDITY...10 TO 15 PERCENT.

* IMPACTS...THE COMBINATION OF STRONG AND GUSTY WINDS COMBINED 
  WITH LOW HUMIDITIES WILL CREATE THE POTENTIAL FOR RAPID FIRE 
  GROWTH.

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.

&&

$$

WYZ301-120000-
/O.CON.KCYS.FW.W.0021.000000T0000Z-100912T0000Z/
NIOBRARA/LOWER ELEVATIONS OF CONVERSE/THUNDER BASIN NATIONAL
GRASSLAND-
213 PM MDT SAT SEP 11 2010

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS EVENING
FOR GUSTY WINDS AND LOW RELATIVE HUMIDITIES FOR FIRE WEATHER ZONE
301...

* AFFECTED AREA...IN WYOMING...FIRE WEATHER ZONE 301.

* WIND...WEST AT 15 TO 25 MPH WITH GUSTS UP TO 30 MPH.

* HUMIDITY...10 TO 15 PERCENT.

* IMPACTS...THE COMBINATION OF STRONG AND GUSTY WINDS COMBINED 
  WITH LOW HUMIDITIES WILL CREATE THE POTENTIAL FOR RAPID FIRE 
  GROWTH.

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
435 
WWUS85 KCYS 112337
RFWCYS

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
537 PM MDT SAT SEP 11 2010

...RED FLAG WARNING IN EFFECT UNTIL 7 PM MDT THIS EVENING FOR
GUSTY WINDS AND LOW RELATIVE HUMIDITIES FOR FIRE WEATHER ZONES
301...302 AND 307...

.GUSTY WESTERLY WINDS AND LOW RELATIVE HUMIDITIES WILL ENHANCE
THE RAPID FIRE GROWTH OVER PORTIONS OF SOUTH AND SOUTHEAST
WYOMING. GUSTY WINDS CONTINUE LATE THIS AFTERNOON AND WILL MOST
LIKELY CONTINUE UNTIL SUNSET OR SHORTLY BEFORE. WENT AHEAD AND
EXTENDED THE RED FLAG WARNINGS THROUGH 7 PM THIS EVENING.

WYZ301-302-307-120100-
/O.EXT.KCYS.FW.W.0021.000000T0000Z-100912T0100Z/
NIOBRARA/LOWER ELEVATIONS OF CONVERSE/THUNDER BASIN NATIONAL
GRASSLAND-NORTH LARAMIE RANGE/MEDICINE BOW NF-
SNOWY RANGE/MEDICINE BOW NF-
537 PM MDT SAT SEP 11 2010

...RED FLAG WARNING NOW IN EFFECT UNTIL 7 PM MDT THIS EVENING FOR
GUSTY WINDS AND LOW RELATIVE HUMIDITIES FOR FIRE WEATHER ZONES
301...302 AND 307...

* AFFECTED AREA...IN WYOMING...FIRE WEATHER ZONES 301...302 AND 307.

* WIND...WEST AT 15 TO 25 MPH WITH GUSTS UP TO 30 MPH.

* HUMIDITY...10 TO 15 PERCENT.

* IMPACTS...THE COMBINATION OF STRONG AND GUSTY WINDS COMBINED 
  WITH LOW HUMIDITIES WILL CREATE THE POTENTIAL FOR RAPID FIRE 
  GROWTH.

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.

&&

$$
625 
WWUS85 KCYS 120100
RFWCYS

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
700 PM MDT SAT SEP 11 2010

...RED FLAG WARNINGS FOR SOUTHEAST WYOMING CANCELLED...

WYZ301-302-307-120200-
/O.CAN.KCYS.FW.W.0021.000000T0000Z-100912T0100Z/
NIOBRARA/LOWER ELEVATIONS OF CONVERSE/THUNDER BASIN NATIONAL
GRASSLAND-NORTH LARAMIE RANGE/MEDICINE BOW NF-
SNOWY RANGE/MEDICINE BOW NF-
700 PM MDT SAT SEP 11 2010

...RED FLAG WARNING IS CANCELLED FOR GUSTY WINDS AND LOW RELATIVE
HUMIDITIES FOR FIRE WEATHER ZONES 301...302 AND 307...

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

WINDS WILL CONTINUE DECREASING BELOW CRITICAL LEVELS THIS EVENING.
TEMPERATURES HAVE BEGUN TO DECREASE WITH RELATIVE HUMIDITIES
BEGINNING TO SLOWLY RECOVER. THEREFORE...HAVE WILL LET THE RED
FLAG WARNING EXPIRE AT 7 PM. HOWEVER...GUSTY WESTERLY WINDS OF 15 TO
20 MPH WILL CONTINUE FOR A SHORT TIME THIS EVENING ACROSS PORTIONS
OF CONVERSE COUNTY THROUGH 9 PM MDT.

$$

CLAYCOMB

Nearby

Red Flag Warnings in Wyoming, 2010Every red flag warning in 2010

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.