Alert archive / Wyoming / Red Flag Warnings in 2021

Red Flag Warning 24, NWS Cheyenne, WY

August 28, 2021

NWS Cheyenne, WY issued this red flag warning at Aug 28, 2021, 1:14 AM MDT. It took effect at Aug 28, 2021, 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
Aug 28, 2021, 1:14 AM MDT (07:14 UTC)
In effect from
Aug 28, 2021, 12:00 PM MDT
Expired
Aug 28, 2021, 7:00 PM MDT
In force
7 hr
Issued by
NWS Cheyenne, WY

The text

As transmitted.

394 
WWUS85 KCYS 280714
RFWCYS

URGENT - FIRE WEATHER MESSAGE
National Weather Service Cheyenne WY
114 AM MDT Sat Aug 28 2021

...RED FLAG WARNINGS THIS AFTERNOON FOR FWZ 303...304 AND 308 FOR
GUSTY WINDS AND LOW HUMIDITY...

WYZ303-304-308-290000-
/O.NEW.KCYS.FW.W.0024.210828T1800Z-210829T0100Z/
Central and Northern Carbon/Ferris-Seminoe-Shirley Mountains-
Southwest Carbon County-Laramie Valley/Shirley Basin-
114 AM MDT Sat Aug 28 2021

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 7 PM MDT THIS
EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 
303, 304, AND 308...

The National Weather Service in Cheyenne has issued a Red Flag
Warning, which is in effect from noon today to 7 PM MDT this
evening. 

* AFFECTED AREA...Fire weather zones 303...304 and 308.
  

* WIND...West winds 15 to 20 mph with gusts to 30 to 35 mph. 
 
* HUMIDITY...10 to 15 percent.

* HAINES...5 to 6 or High Potential for Large Fire Growth.

* IMPACTS...any fires that develop will likely spread rapidly. 
  Outdoor burning is not recommended.

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 can
contribute to extreme fire behavior.

&&

$$
3 follow-up statements
979 
WWUS85 KCYS 280815
RFWCYS

URGENT - FIRE WEATHER MESSAGE
National Weather Service Cheyenne WY
215 AM MDT Sat Aug 28 2021

...RED FLAG WARNINGS THIS AFTERNOON FOR FWZ 303...304...305...307 
AND 308 FOR GUSTY WINDS AND LOW HUMIDITY...

WYZ305-307-290000-
/O.EXA.KCYS.FW.W.0024.210828T1800Z-210829T0100Z/
Sierra Madre Range/Medicine Bow NF-Snowy Range/Medicine Bow NF-
215 AM MDT Sat Aug 28 2021

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 7 PM MDT THIS
EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES
303, 304, AND 308...

The National Weather Service in Cheyenne has issued a Red Flag
Warning, which is in effect from noon today to 7 PM MDT this
evening. 

* AFFECTED AREA...Fire weather zones 305 and 307.

* WIND...West winds 15 to 20 mph with gusts to 30 to 35 mph.

* HUMIDITY...10 to 15 percent.

* HAINES...5 to 6 or High Potential for Large Fire Growth.

* IMPACTS...any fires that develop will likely spread rapidly. 
  Outdoor burning is not recommended.

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 can
contribute to extreme fire behavior.

&&

$$

WYZ303-304-308-290000-
/O.CON.KCYS.FW.W.0024.210828T1800Z-210829T0100Z/
Central and Northern Carbon/Ferris-Seminoe-Shirley Mountains-
Southwest Carbon County-Laramie Valley/Shirley Basin-
215 AM MDT Sat Aug 28 2021

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

* AFFECTED AREA...Fire weather zones 303...304 and 308.

* WIND...West winds 15 to 20 mph with gusts to 30 to 35 mph.

* HUMIDITY...10 to 15 percent.

* HAINES...5 to 6 or High Potential for Large Fire Growth.

* IMPACTS...any fires that develop will likely spread rapidly. 
  Outdoor burning is not recommended.

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 can
contribute to extreme fire behavior.

&&

$$
842 
WWUS85 KCYS 282012
RFWCYS

URGENT - FIRE WEATHER MESSAGE
National Weather Service Cheyenne WY
212 PM MDT Sat Aug 28 2021

WYZ303>305-307-308-290100-
/O.CON.KCYS.FW.W.0024.000000T0000Z-210829T0100Z/
Central and Northern Carbon/Ferris-Seminoe-Shirley Mountains-
Southwest Carbon County-Sierra Madre Range/Medicine Bow NF-
Snowy Range/Medicine Bow NF-Laramie Valley/Shirley Basin-
212 PM MDT Sat Aug 28 2021

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 PM MDT THIS EVENING
FOR GUSTY WINDS AND LOW HUMIDITY...

* AFFECTED AREA...Fire weather zones 303, 304, 305, 307, and 308.

* WIND...West winds 15 to 20 mph with gusts to 30 mph.

* HUMIDITY...12 to 17 percent.

* HAINES...5 to 6 or High Potential for Large Fire Growth.

* IMPACTS...any fires that develop will likely spread rapidly. 
  Outdoor burning is not recommended.

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 can
contribute to extreme fire behavior.

&&

$$
637 
WWUS85 KCYS 290051
RFWCYS

URGENT - FIRE WEATHER MESSAGE
National Weather Service Cheyenne WY
651 PM MDT Sat Aug 28 2021

WYZ303>305-307-308-290200-
/O.EXP.KCYS.FW.W.0024.000000T0000Z-210829T0100Z/
Central and Northern Carbon/Ferris-Seminoe-Shirley Mountains-
Southwest Carbon County-Sierra Madre Range/Medicine Bow NF-
Snowy Range/Medicine Bow NF-Laramie Valley/Shirley Basin-
651 PM MDT Sat Aug 28 2021

...RED FLAG WARNING WILL EXPIRE AT 7 PM MDT THIS EVENING FOR
GUSTY WINDS AND LOW HUMIDITY...

Gusty winds will continue to diminish during the remainder of the
evening with good humidity recoveries expected.

$$

Nearby

Red Flag Warnings in Wyoming, 2021Every red flag warning in 2021

Sources

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