Alert archive / Wyoming / Red Flag Warnings in 2021

Red Flag Warning 16, NWS Cheyenne, WY

August 8, 2021

NWS Cheyenne, WY issued this red flag warning at Aug 8, 2021, 1:42 PM MDT. It took effect at Aug 9, 2021, 11:00 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: Aug 8, 2021, 1:42 PM MDT (19:42 UTC)
In effect from: Aug 9, 2021, 11:00 AM MDT
Expired: Aug 9, 2021, 8:00 PM MDT
In force: 9 hr
Issued by: NWS Cheyenne, WY

The text

As transmitted.

407 
WWUS85 KCYS 081942
RFWCYS

URGENT - FIRE WEATHER MESSAGE
National Weather Service Cheyenne WY
142 PM MDT Sun Aug 8 2021

...FIRE WEATHER WATCH FOR GUSTY WINDS AND LOW HUMIDITY MONDAY FOR
FWZ 304 AND 308...

WYZ304-308-091200-
/O.UPG.KCYS.FW.A.0015.210809T1700Z-210810T0200Z/
/O.NEW.KCYS.FW.W.0016.210809T1700Z-210810T0200Z/
Southwest Carbon County-Laramie Valley/Shirley Basin-
142 PM MDT Sun Aug 8 2021

...RED FLAG WARNING IN EFFECT FROM 11 AM TO 8 PM MDT MONDAY FOR
GUSTY WINDS AND LOW HUMIDITY...

The National Weather Service in Cheyenne has issued a Red Flag
Warning, which is in effect from 11 AM to 8 PM MDT Monday. 

* AFFECTED AREA...Fire weather zone 304 and 308.

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

* HUMIDITY...Afternoon humidity of 10 to 15 percent.

* 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.

&&

$$

WM

3 follow-up statements

977 
WWUS85 KCYS 082333
RFWCYS

URGENT - FIRE WEATHER MESSAGE
National Weather Service Cheyenne WY
533 PM MDT Sun Aug 8 2021

...RED FLAG WARNING FOR GUSTY WINDS AND LOW HUMIDITY MONDAY FOR 
FIRE WEATHER ZONES 304 AND 308...

WYZ304-308-091200-
/O.CON.KCYS.FW.W.0016.210809T1700Z-210810T0200Z/
Southwest Carbon County-Laramie Valley/Shirley Basin-
533 PM MDT Sun Aug 8 2021

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM TO 8 PM MDT
MONDAY FOR GUSTY WINDS AND LOW HUMIDITY...

* AFFECTED AREA...Fire weather zone 304 and 308.

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

* HUMIDITY...Afternoon humidity of 10 to 15 percent.

* 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.

&&

$$

Rubin

873 
WWUS85 KCYS 092046
RFWCYS

URGENT - FIRE WEATHER MESSAGE
National Weather Service Cheyenne WY
246 PM MDT Mon Aug 9 2021

...RED FLAG WARNING FOR GUSTY WINDS AND LOW HUMIDITY MONDAY FOR
FIRE WEATHER ZONES 304 AND 308...

...FIRE WEATHER WATCH FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE
WEATHER ZONES 301...302...304...305...307...308 AND 310...

WYZ304-308-101100-
/O.NEW.KCYS.FW.A.0016.210810T1700Z-210811T0200Z/
/O.CON.KCYS.FW.W.0016.000000T0000Z-210810T0200Z/
Southwest Carbon County-Laramie Valley/Shirley Basin-
246 PM MDT Mon Aug 9 2021

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING
FOR LOW HUMIDITY AND GUSTY WINDS FOR FIRE WEATHER ZONES 304 AND 
308... 
...FIRE WEATHER WATCH IN EFFECT FROM TUESDAY MORNING 
THROUGH TUESDAY EVENING FOR LOW HUMIDITY AND GUSTY WINDS.
FOR FIRE WEATHER ZONES 304 AND 308...

The National Weather Service in Cheyenne has issued a Fire
Weather Watch, which is in effect from Tuesday morning through
Tuesday evening. 

* AFFECTED AREA...Fire weather zone 304 and 308.

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

* HUMIDITY...Afternoon humidity of 10 to 15 percent.

* 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.

A Fire Weather Watch means that critical fire weather conditions
may develop. Listen for later forecasts and possible Red Flag
Warnings.

&&

$$

WYZ301-302-305-307-310-101100-
/O.NEW.KCYS.FW.A.0016.210810T1700Z-210811T0200Z/
Niobrara/Lower Elevations of Converse/Thunder Basin National
Grassland-North Laramie Range/Medicine Bow NF-
Sierra Madre Range/Medicine Bow NF-Snowy Range/Medicine Bow NF-
Platte/Goshen/Central and Eastern Laramie-
246 PM MDT Mon Aug 9 2021

...FIRE WEATHER WATCH IN EFFECT FROM TUESDAY MORNING THROUGH
TUESDAY EVENING FOR LOW HUMIDITY AND GUSTY WINDS FOR FIRE WEATHER
ZONES 301, 302, 305, 307, AND 310...

The National Weather Service in Cheyenne has issued a Fire
Weather Watch, which is in effect from Tuesday morning through
Tuesday evening. 

* AFFECTED AREA...Fire weather zone 301.Fire weather zone 
  302.Fire weather zone 305.Fire weather zone 307.Fire weather 
  zone 310. 

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

* HUMIDITY...LOW HUMIDITY 10 TO 15 PERCENT.

* HAINES...5 OR 6

* THUNDERSTORMS...NO THUNDERSTORMS ARE EXPECTED


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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Fire Weather Watch means that critical fire weather conditions
may develop. Listen for later forecasts and possible Red Flag
Warnings.

&&

$$

707 
WWUS85 KCYS 100151
RFWCYS

URGENT - FIRE WEATHER MESSAGE
National Weather Service Cheyenne WY
751 PM MDT Mon Aug 9 2021

...RED FLAG WARNING EXPIRES AT 800 PM MDT TONIGHT FOR GUSTY WINDS
AND LOW HUMIDITY FOR FIRE WEATHER ZONES 304 AND 308...

...FIRE WEATHER WATCH LATE TUESDAY MORNING THROUGH EARLY EVENING 
FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 
301...302...304... 305...307...308 AND 310...

WYZ304-308-101200-
/O.EXP.KCYS.FW.W.0016.000000T0000Z-210810T0200Z/
/O.CON.KCYS.FW.A.0016.210810T1700Z-210811T0200Z/
Southwest Carbon County-Laramie Valley/Shirley Basin-
751 PM MDT Mon Aug 9 2021

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM TUESDAY MORNING
THROUGH TUESDAY EVENING FOR LOW HUMIDITY AND GUSTY WINDS FOR FIRE
WEATHER ZONES 304 AND 308...

* AFFECTED AREA...Fire weather zone 304 and 308.

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

* HUMIDITY...Afternoon humidity of 10 to 15 percent.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Fire Weather Watch means that critical fire weather conditions
may develop. Listen for later forecasts and possible Red Flag
Warnings.

&&

$$

WYZ301-302-305-307-310-101200-
/O.CON.KCYS.FW.A.0016.210810T1700Z-210811T0200Z/
Niobrara/Lower Elevations of Converse/Thunder Basin National
Grassland-North Laramie Range/Medicine Bow NF-
Sierra Madre Range/Medicine Bow NF-Snowy Range/Medicine Bow NF-
Platte/Goshen/Central and Eastern Laramie-
751 PM MDT Mon Aug 9 2021

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM TUESDAY MORNING
THROUGH TUESDAY EVENING FOR LOW HUMIDITY AND GUSTY WINDS FOR FIRE
WEATHER ZONES 301, 302, 305, 307, AND 310...

* AFFECTED AREA...Fire weather zone 301.Fire weather zone 
  302.Fire weather zone 305.Fire weather zone 307.Fire weather 
  zone 310. 

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

* HUMIDITY...LOW HUMIDITY 10 TO 15 PERCENT.

* HAINES...5 OR 6

* THUNDERSTORMS...NO THUNDERSTORMS ARE EXPECTED

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Fire Weather Watch means that critical fire weather conditions
may develop. Listen for later forecasts and possible Red Flag
Warnings.

&&

$$

Rubin

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 8, 1:23 AM MDT	Fire Weather Watch	CYS		12 hr

Nearby

Red Flag Warnings in Wyoming, 2021 Every 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.