Alert archive / Wyoming / Red Flag Warnings in 2015

Red Flag Warning 21, NWS Cheyenne, WY

September 1, 2015

NWS Cheyenne, WY issued this red flag warning at Sep 1, 2015, 2:31 PM MDT. It took effect at Sep 2, 2015, 12:00 PM MDT. It was in force for 6 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 1, 2015, 2:31 PM MDT (20:31 UTC)
In effect from
Sep 2, 2015, 12:00 PM MDT
Expired
Sep 2, 2015, 5:51 PM MDT
In force
6 hr
Issued by
NWS Cheyenne, WY

The text

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

103 
WWUS85 KCYS 012031
RFWCYS

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
231 PM MDT TUE SEP 1 2015

...RED FLAG WARNING TODAY FOR FWZ 301 AND 302 FOR STRONG WINDS AND
LOW HUMIDITIES.

...RED FLAG WARNING FOR FWZ 301 FOR WEDNESDAY FOR GUSTY WINDS AND
LOW HUMIDITIES...

...FIRE WEATHER WATCH FOR WYOMING FIRE WEATHER ZONES 302...304
AND 306 FOR WEDNESDAY FOR GUSTY WINDS AND LOW AFTERNOON
HUMIDITIES...

.GUSTY WINDS WILL CONTINUE TODAY FOR FWZ 301 AND 302 THROUGH THE
REMAINDER OF THE AFTERNOON. CRITICAL FIRE WEATHER CONDITIONS ARE
OCCURRING AT THIS TIME. THESE WINDS WILL ONCE AGAIN PICK UP FOR
WEDNESDAY ACROSS THE AREA AND A RED FLAG WARNING HAS BEEN ISSUED
FOR FWZ 301 ONCE AGAIN. FIRE WEATHER WATCHES REMAIN IN EFFECT FOR
WEDNESDAY FOR FWZ 304 AND 306. BY WEDNESDAY AFTERNOON...WINDS ARE
EXPECTED TO MIX DOWN FROM HIGH ELEVATIONS IN THE ATMOSPHERE AND
ARE EXPECTED TO GUST INTO THE 30 TO 35 MPH RANGE. IT WILL BE DRY
WITH AFTERNOON HUMIDITIES FALLING INTO THE LOWER TO MIDDLE TEENS.
COMBINATION OF GUSTY WEST WINDS AND LOW HUMIDITIES WILL LIKELY
CREATE CRITICAL FIRE WEATHER CONDITIONS ACROSS SOUTHEAST WYOMING
WHERE FUELS ARE REPORTED READY FOR RAPID FIRE GROWTH.

WYZ301-020445-
/O.UPG.KCYS.FW.A.0015.150902T1600Z-150903T0100Z/
/O.NEW.KCYS.FW.W.0021.150902T1800Z-150903T0100Z/
/O.NEW.KCYS.FW.W.0020.150901T2100Z-150902T0200Z/
NIOBRARA/LOWER ELEVATIONS OF CONVERSE/THUNDER BASIN NATIONAL
GRASSLAND-
231 PM MDT TUE SEP 1 2015

...RED FLAG WARNING IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR
GUSTY WINDS AND LOW HUMIDITIES FOR FIRE WEATHER ZONE 301...
...RED FLAG WARNING IN EFFECT FROM NOON TO 7 PM MDT WEDNESDAY FOR
GUSTY WINDS AND LOW HUMIDITIES FOR FIRE WEATHER ZONE 301...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT UNTIL 8 PM MDT THIS EVENING. A RED
FLAG WARNING HAS ALSO BEEN ISSUED FROM NOON TO 7 PM MDT
WEDNESDAY. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. 

* WIND...WEST TO SOUTHWEST WINDS OF 15 TO 25 MPH SUSTAINED WITH 
  GUSTS TO 35 MPH. 

* HUMIDITY...LATE MORNING TO AFTERNOON HUMIDITIES FALLING INTO 
  THE UPPER SINGLE DIGITS TO LOWER TEENS.

* IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. 
  OUTDOOR BURNING IS NOT RECOMMENDED WEDNESDAY.

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 MAY
LEAD TO EXTREME FIRE BEHAVIOR.

&&

$$

WYZ302-020445-
/O.NEW.KCYS.FW.W.0020.150901T2100Z-150902T0200Z/
/O.EXT.KCYS.FW.A.0015.150902T1800Z-150903T0100Z/
NORTH LARAMIE RANGE/MEDICINE BOW NF-
231 PM MDT TUE SEP 1 2015

...RED FLAG WARNING IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR
STRONG WINDS AND LOW HUMIDITIES FOR FIRE WEATHER ZONE 302...
...FIRE WEATHER WATCH NOW IN EFFECT FROM WEDNESDAY AFTERNOON
THROUGH WEDNESDAY EVENING FOR STRONG WINDS AND LOW HUMIDITIES FOR
FIRE WEATHER ZONE 302...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT UNTIL 8 PM MDT THIS EVENING. 

* AFFECTED AREA...FIRE WEATHER ZONE 302.

* WIND...WEST TO SOUTHWEST WINDS OF 15 TO 25 MPH SUSTAINED WITH
  GUSTS TO 35 MPH. WINDY CONDITIONS ARE EXPECTED TO RETURN
  WEDNESDAY AND A FIRE WEATHER WATCH REMAINS IN EFFECT FOR
  WEDNESDAY.

* HUMIDITY...LATE MORNING TO AFTERNOON HUMIDITIES FALLING INTO 
  THE UPPER SINGLE DIGITS TO LOWER TEENS.

* IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. 
  OUTDOOR BURNING IS NOT RECOMMENDED 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.

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 MAY
LEAD TO EXTREME FIRE BEHAVIOR.

&&

$$

WYZ304-306-020445-
/O.EXT.KCYS.FW.A.0015.150902T1800Z-150903T0100Z/
SOUTHWEST CARBON-UPPER NORTH PLATTE RIVER BASIN-
231 PM MDT TUE SEP 1 2015

...FIRE WEATHER WATCH NOW IN EFFECT FROM WEDNESDAY AFTERNOON
THROUGH WEDNESDAY EVENING FOR GUSTY WINDS AND LOW HUMIDITIES FOR
FIRE WEATHER ZONES 304 AND 306...

* AFFECTED AREA...FIRE WEATHER ZONES 304 AND 306. 

* WIND...WEST TO SOUTHWEST WINDS OF 15 TO 25 MPH SUSTAINED WITH 
  GUSTS TO 35 MPH.

* HUMIDITY...LATE MORNING TO AFTERNOON HUMIDITIES FALLING INTO 
  THE UPPER SINGLE DIGITS TO LOWER TEENS.

* IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. 
  OUTDOOR BURNING IS NOT RECOMMENDED 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.

&&

$$
5 follow-up statements
266 
WWUS85 KCYS 020004
RFWCYS

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
604 PM MDT TUE SEP 1 2015

...RED FLAG WARNING FOR FWZ 301...302...303...304...306 
AND 308 WEDNESDAY FOR GUSTY WINDS AND LOW HUMIDITIES...

.GUSTY WINDS WILL RETURN ACROSS A BROAD AREA OF SOUTHEAST WYOMING
AS LOW PRESSURE TRACKS INTO WESTERN MONTANA. THIS IS A VERY
FAVORABLE PATTERN FOR WIDESPREAD CRITICAL FIRE WEATHER CONDITIONS.
HOT TEMPERATURES ARE EXPECTED WEDNESDAY ACROSS THE AREA ALLOWING
WINDS TO MIX DOWN FROM VERY HIGH LEVELS IN THE ATMOSPHERE. VERY
DRY CONDITIONS WITH AFTERNOON HUMIDITIES IN THE UPPER SINGLE
DIGITS AND LOW TEENS EXPECTED. WINDY PATTERN LIKELY TO CONTINUE
INTO THURSDAY AND POSSIBLY FRIDAY.

WYZ302-020815-
/O.CAN.KCYS.FW.W.0020.000000T0000Z-150902T0200Z/
/O.UPG.KCYS.FW.A.0015.150902T1800Z-150903T0100Z/
/O.EXA.KCYS.FW.W.0021.150902T1800Z-150903T0100Z/
NORTH LARAMIE RANGE/MEDICINE BOW NF-
604 PM MDT TUE SEP 1 2015

...RED FLAG WARNING IN EFFECT FROM NOON TO 7 PM MDT WEDNESDAY FOR
GUSTY WINDS AND LOW AFTERNOON HUMIDITIES FOR FIRE WEATHER ZONE
302... 

...RED FLAG WARNING IS CANCELLED FOR GUSTY WINDS AND LOW
HUMIDITIES TODAY...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM NOON TO 7 PM MDT WEDNESDAY. THE
RED FLAG WARNING FOR TODAY HAS BEEN HAS BEEN CANCELLED. THE FIRE
WEATHER WATCH IS NO LONGER IN EFFECT.

* AFFECTED AREA...FIRE WEATHER ZONE 302.

* WIND...WEST TO SOUTHWEST WINDS OF 15 TO 25 MPH SUSTAINED WITH
  GUSTS TO 35 MPH. 

* HUMIDITY...LATE MORNING TO AFTERNOON HUMIDITIES FALLING INTO 
  THE UPPER SINGLE DIGITS TO LOWER TEENS.

* IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. 
  OUTDOOR BURNING IS NOT RECOMMENDED WEDNESDAY.

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 MAY
LEAD TO EXTREME FIRE BEHAVIOR.

&&

$$

WYZ301-020815-
/O.CAN.KCYS.FW.W.0020.000000T0000Z-150902T0200Z/
/O.CON.KCYS.FW.W.0021.150902T1800Z-150903T0100Z/
NIOBRARA/LOWER ELEVATIONS OF CONVERSE/THUNDER BASIN NATIONAL
GRASSLAND-
604 PM MDT TUE SEP 1 2015

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 7 PM MDT
WEDNESDAY FOR GUSTY WINDS AND LOW HUMIDITIES FOR FIRE WEATHER
ZONE 301...

 ...RED FLAG WARNING IS CANCELLED TODAY FOR GUSTY WINDS AND LOW
HUMIDITIES FOR FIRE WEATHER ZONE 301...

* WIND...WEST TO SOUTHWEST WINDS OF 15 TO 25 MPH SUSTAINED WITH 
  GUSTS TO 35 MPH. 

* HUMIDITY...LATE MORNING TO AFTERNOON HUMIDITIES FALLING INTO 
  THE UPPER SINGLE DIGITS TO LOWER TEENS.

* IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. 
  OUTDOOR BURNING IS NOT RECOMMENDED WEDNESDAY.

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 MAY
LEAD TO EXTREME FIRE BEHAVIOR.

&&

$$

WYZ304-306-020815-
/O.UPG.KCYS.FW.A.0015.150902T1800Z-150903T0100Z/
/O.EXA.KCYS.FW.W.0021.150902T1800Z-150903T0100Z/
SOUTHWEST CARBON-UPPER NORTH PLATTE RIVER BASIN-
604 PM MDT TUE SEP 1 2015

...RED FLAG WARNING IN EFFECT FROM NOON TO 7 PM MDT WEDNESDAY FOR
GUSTY WINDS AND LOW AFTERNOON HUMIDITIES FOR FIRE WEATHER ZONES
304 AND 306...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM NOON TO 7 PM MDT WEDNESDAY. THE
FIRE WEATHER WATCH IS NO LONGER IN EFFECT. 

* WIND...WEST TO SOUTHWEST WINDS OF 15 TO 25 MPH SUSTAINED WITH 
  GUSTS TO 35 MPH. 

* HUMIDITY...LATE MORNING TO AFTERNOON HUMIDITIES FALLING INTO 
  THE UPPER SINGLE DIGITS TO LOWER TEENS.

* IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. 
  OUTDOOR BURNING IS NOT RECOMMENDED WEDNESDAY.

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 MAY
LEAD TO EXTREME FIRE BEHAVIOR.

&&

$$

WYZ303-308-020815-
/O.EXA.KCYS.FW.W.0021.150902T1800Z-150903T0100Z/
CENTRAL AND NORTHERN CARBON/FERRIS-SEMINOE-SHIRLEY MOUNTAINS-
LARAMIE VALLEY/SHIRLEY BASIN-
604 PM MDT TUE SEP 1 2015

...RED FLAG WARNING IN EFFECT FROM NOON TO 7 PM MDT WEDNESDAY FOR
GUSTY WINDS AND LOW HUMIDITIES FOR FIRE WEATHER ZONES 303 AND
308...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM NOON TO 7 PM MDT WEDNESDAY. 

* WIND...WEST TO SOUTHWEST WINDS OF 15 TO 25 MPH SUSTAINED WITH 
  GUSTS TO 35 MPH. 

* HUMIDITY...LATE MORNING TO AFTERNOON HUMIDITIES FALLING INTO 
  THE UPPER SINGLE DIGITS TO LOWER TEENS.

* IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. 
  OUTDOOR BURNING IS NOT RECOMMENDED WEDNESDAY.

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 MAY
LEAD TO EXTREME FIRE BEHAVIOR.

&&

$$
316 
WWUS85 KCYS 020006
RFWCYS

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
606 PM MDT TUE SEP 1 2015

...RED FLAG WARNING FOR FWZ 301...302...303...304...306 AND
308 WEDNESDAY FOR GUSTY WINDS AND LOW HUMIDITIES...

.GUSTY WINDS WILL RETURN ACROSS A BROAD AREA OF SOUTHEAST WYOMING
AS LOW PRESSURE TRACKS INTO WESTERN MONTANA. THIS IS A VERY
FAVORABLE PATTERN FOR WIDESPREAD CRITICAL FIRE WEATHER
CONDITIONS. HOT TEMPERATURES ARE EXPECTED WEDNESDAY ACROSS THE
AREA ALLOWING WINDS TO MIX DOWN FROM VERY HIGH LEVELS IN THE
ATMOSPHERE. VERY DRY CONDITIONS WITH AFTERNOON HUMIDITIES IN THE
UPPER SINGLE DIGITS AND LOW TEENS EXPECTED. WINDY PATTERN LIKELY
TO CONTINUE INTO THURSDAY AND POSSIBLY FRIDAY.

WYZ301>304-306-308-021215-
/O.CON.KCYS.FW.W.0021.150902T1800Z-150903T0100Z/
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-
606 PM MDT TUE SEP 1 2015

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 7 PM MDT
WEDNESDAY FOR GUSTY WINDS AND LOW HUMIDITIES FOR FIRE WEATHER
ZONES 301...302...303...304...306 AND 308...

* WIND...WEST TO SOUTHWEST WINDS OF 15 TO 25 MPH SUSTAINED WITH 
  GUSTS TO 35 MPH. 

* HUMIDITY...LATE MORNING TO AFTERNOON HUMIDITIES FALLING INTO 
  THE UPPER SINGLE DIGITS TO LOWER TEENS.

* IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. 
  OUTDOOR BURNING IS NOT RECOMMENDED WEDNESDAY.

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 MAY
LEAD TO EXTREME FIRE BEHAVIOR.

&&

$$
948 
WWUS85 KCYS 020905
RFWCYS

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
305 AM MDT WED SEP 2 2015

...RED FLAG WARNING FOR FWZ 301...302...303...304...306 AND
308 TODAY FOR GUSTY WINDS AND LOW HUMIDITIES...

.GUSTY WINDS WILL RETURN ACROSS A BROAD AREA OF SOUTHEAST WYOMING
AS LOW PRESSURE TRACKS INTO WESTERN MONTANA. THIS IS A VERY
FAVORABLE PATTERN FOR WIDESPREAD CRITICAL FIRE WEATHER
CONDITIONS. HOT TEMPERATURES ARE EXPECTED TODAY ACROSS THE AREA
ALLOWING WINDS TO MIX DOWN FROM VERY HIGH LEVELS IN THE
ATMOSPHERE. VERY DRY CONDITIONS WITH AFTERNOON HUMIDITIES IN THE
UPPER SINGLE DIGITS AND LOW TEENS EXPECTED. WINDY PATTERN LIKELY
TO CONTINUE INTO THURSDAY AND POSSIBLY FRIDAY.

WYZ301>304-306-308-030100-
/O.CON.KCYS.FW.W.0021.150902T1800Z-150903T0100Z/
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-
305 AM MDT WED SEP 2 2015

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 7 PM MDT
THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITIES FOR FIRE WEATHER
ZONES 301... 302...303...304...306 AND 308...

* WIND...WEST TO SOUTHWEST WINDS OF 15 TO 25 MPH SUSTAINED WITH 
  GUSTS TO 35 MPH. 

* HUMIDITY...LATE MORNING TO AFTERNOON HUMIDITIES FALLING INTO 
  THE UPPER SINGLE DIGITS TO LOWER TEENS.

* IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY. 
  OUTDOOR BURNING IS NOT RECOMMENDED WEDNESDAY.

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 MAY
LEAD TO EXTREME FIRE BEHAVIOR.

&&

$$

RUBIN
428 
WWUS85 KCYS 022059
RFWCYS

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
259 PM MDT WED SEP 2 2015

...RED FLAG WARNING FOR FWZ 301...302...303...304...306 AND
308 TODAY FOR GUSTY WINDS AND LOW HUMIDITIES...

CRITICAL TO NEAR CRITICAL FIRE WEATHER CONDITIONS WILL CONTINUE
OVER OF SOUTHEAST WYOMING UNTIL EARLY THIS EVENING. WINDS WILL
SUBSIDE AND RELATIVE HUMIDITY VALUES WILL RECOVER BY EARLY THIS
EVENING. 


WYZ301>304-306-308-030100-
/O.CON.KCYS.FW.W.0021.000000T0000Z-150903T0100Z/
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-
259 PM MDT WED SEP 2 2015

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM MDT THIS EVENING
FOR GUSTY WINDS AND LOW HUMIDITIES FOR FIRE WEATHER ZONES
301...302...303... 304...306 AND 308...

* WIND...SUSTAINED WEST TO SOUTHWEST WINDS OF 15 TO 20 MPH WITH
  GUSTS TO 30 MPH. WINDS WILL QUICKLY SUBSIDE THIS EVENING.

* HUMIDITY...MINIMUM HUMIDITIES 10 TO 15 PERCENT. HUMIDITY VALUES
  WILL RECOVER THIS EVENING. 

* IMPACTS...FIRES MAY SPREAD RAPIDLY. OUTDOOR BURNING IS NOT
  RECOMMENDED WEDNESDAY.

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 MAY
LEAD TO EXTREME FIRE BEHAVIOR.

&&

$$
576 
WWUS85 KCYS 022351
RFWCYS

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHEYENNE WY
551 PM MDT WED SEP 2 2015

...RED FLAG WARNINGS CANCELLED THIS EVENING...

WYZ301>304-306-308-030100-
/O.CAN.KCYS.FW.W.0021.000000T0000Z-150903T0100Z/
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-
551 PM MDT WED SEP 2 2015

...RED FLAG WARNING IS CANCELLED FOR GUSTY WINDS AND LOW
HUMIDITIES FOR FIRE WEATHER ZONES 301...302...303...304...306 AND
308...

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

WINDS HAVE EASED EARLY THIS EVENING AND HUMIDITIES ARE ON THE RISE
WITH LOW LEVEL MOISTURE MOVING IN FROM THE SOUTHWEST.
THEREFORE...THE RED FLAG WARNINGS HAVE BEEN CANCELLED EARLY.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 1, 2:31 PM MDTRed Flag WarningCYS4 hr

Nearby

Red Flag Warnings in Wyoming, 2015Every red flag warning in 2015

Sources

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