Alert archive / Wyoming / Red Flag Warnings in 2021

Red Flag Warning 10, NWS Cheyenne, WY

June 21, 2021

NWS Cheyenne, WY issued this red flag warning at Jun 21, 2021, 1:30 PM MDT. It took effect at Jun 22, 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: Jun 21, 2021, 1:30 PM MDT (19:30 UTC)
In effect from: Jun 22, 2021, 11:00 AM MDT
Expired: Jun 22, 2021, 8:00 PM MDT
In force: 9 hr
Issued by: NWS Cheyenne, WY

The text

As transmitted.

608 
WWUS85 KCYS 211930
RFWCYS

URGENT - FIRE WEATHER MESSAGE
National Weather Service Cheyenne WY
130 PM MDT Mon Jun 21 2021

...VERY WARM AND DRY AIRMASS RETURNS TUESDAY AND WEDNESDAY. FIRE 
WEATHER WATCHES AND RED FLAG WARNINGS ARE IN EFFECT FOR SOUTHEAST
WYOMING FIRE WEATHER ZONES WHERE FUELS ARE REPORTED READY...

WYZ305-307-309-221130-
/O.UPG.KCYS.FW.A.0007.210622T1700Z-210623T0200Z/
/O.NEW.KCYS.FW.W.0010.210622T1700Z-210623T0200Z/
/O.CON.KCYS.FW.A.0008.210623T1700Z-210624T0200Z/
Sierra Madre Range/Medicine Bow NF-Snowy Range/Medicine Bow NF-
South Laramie Range/Medicine Bow NF-
130 PM MDT Mon Jun 21 2021

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

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM WEDNESDAY MORNING 
THROUGH WEDNESDAY EVENING ...

The National Weather Service in Cheyenne has issued a Red Flag
Warning, which is in effect from 11 AM to 8 PM MDT Tuesday. The
Fire Weather Watch is no longer in effect for Tuesday, but remains
in effect for Wednesday.

* AFFECTED AREA...Fire weather zones 305...307 and 309.

* WIND...West winds of 20 to 25 mph sustained with gusts of 35 to
  40 mph Tuesday afternoon. 

* HUMIDITY...Afternoon humidity 8 to 13 percent. 

* HAINES...5 to 6.

* IMPACTS...any fires that develop will likely spread rapidly.
  Outdoor burning is strongly discouraged.

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.

&&

$$

WYZ301-302-221130-
/O.CON.KCYS.FW.A.0008.210623T1700Z-210624T0200Z/
Niobrara/Lower Elevations of Converse/Thunder Basin National
Grassland-North Laramie Range/Medicine Bow NF-
130 PM MDT Mon Jun 21 2021

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM WEDNESDAY MORNING
THROUGH WEDNESDAY EVENING FOR GUSTY WEST WINDS AND LOW HUMIDITY...

* AFFECTED AREA...Fire weather zones 301 and 302.

* WIND...West winds of 20 to 25 mph sustained with gusts to 35 mph.
  

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

* HAINES...5 to 6.

* 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.

&&

$$

3 follow-up statements

528 
WWUS85 KCYS 220827
RFWCYS

URGENT - FIRE WEATHER MESSAGE
National Weather Service Cheyenne WY
227 AM MDT Tue Jun 22 2021

...VERY WARM AND DRY AIRMASS RETURNS TODAY AND WEDNESDAY. FIRE 
WEATHER WATCHES AND RED FLAG WARNINGS ARE IN EFFECT FOR SOUTHEAST 
WYOMING FIRE WEATHER ZONES WHERE FUELS ARE REPORTED READY...

WYZ305-307-309-230000-
/O.CON.KCYS.FW.W.0010.210622T1700Z-210623T0200Z/
/O.CON.KCYS.FW.A.0008.210623T1700Z-210624T0200Z/
Sierra Madre Range/Medicine Bow NF-Snowy Range/Medicine Bow NF-
South Laramie Range/Medicine Bow NF-
227 AM MDT Tue Jun 22 2021

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO
8 PM MDT THIS EVENING FOR FOR LOW HUMIDITY AND GUSTY WINDS...
...FIRE WEATHER WATCH REMAINS IN EFFECT FROM WEDNESDAY MORNING
THROUGH WEDNESDAY EVENING FOR FOR LOW HUMIDITY AND GUSTY WINDS...

The National Weather Service in Cheyenne has issued a Red Flag
Warning, which is in effect from 11 AM to 8 PM MDT Today. The 
Fire Weather Watch remains in effect for Wednesday.

* AFFECTED AREA...Fire weather zones 305...307 and 309.

* WIND...West winds of 20 to 25 mph sustained with gusts of 35 to
  40 mph this afternoon. Similar winds are expected Wednesday.

* HUMIDITY...Afternoon humidity 8 to 13 percent.

* HAINES...5 to 6.

* IMPACTS...any fires that develop will likely spread rapidly. 
  Outdoor burning is strongly discouraged.

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.

&&

$$

WYZ301-302-230000-
/O.CON.KCYS.FW.A.0008.210623T1700Z-210624T0200Z/
Niobrara/Lower Elevations of Converse/Thunder Basin National
Grassland-North Laramie Range/Medicine Bow NF-
227 AM MDT Tue Jun 22 2021

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM WEDNESDAY MORNING
THROUGH WEDNESDAY EVENING FOR GUSTY WEST WINDS AND LOW HUMIDITY...

* AFFECTED AREA...Fire weather zones 301 and 302.

* WIND...West winds of 20 to 25 mph sustained with gusts to 35 
  mph.

* HUMIDITY...Afternoon humidity 8 to 12 percent.

* HAINES...5 to 6.

* 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.

&&

$$

987 
WWUS85 KCYS 221852
RFWCYS

URGENT - FIRE WEATHER MESSAGE
National Weather Service Cheyenne WY
1252 PM MDT Tue Jun 22 2021

...VERY WARM AND DRY TODAY AND WEDNESDAY. FIRE WEATHER WATCHES 
AND RED FLAG WARNINGS ARE IN EFFECT FOR SOUTHEAST WYOMING FIRE 
WEATHER ZONES WHERE FUELS ARE REPORTED READY...

WYZ305-307-309-230300-
/O.CON.KCYS.FW.W.0010.000000T0000Z-210623T0200Z/
/O.CON.KCYS.FW.A.0008.210623T1700Z-210624T0200Z/
Sierra Madre Range/Medicine Bow NF-Snowy Range/Medicine Bow NF-
South Laramie Range/Medicine Bow NF-
1252 PM MDT Tue Jun 22 2021

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS 
EVENING...

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM WEDNESDAY MORNING 
THROUGH WEDNESDAY EVENING FOR LOW HUMIDITY AND GUSTY WINDS... 

* AFFECTED AREA...Fire weather zones 305...307 and 309.

* WIND...West winds of 20 to 25 mph sustained with gusts of 35 
  to 40 mph this afternoon. Similar winds are expected 
  Wednesday. 

* HUMIDITY...Afternoon humidity 10 to 16 percent.

* HAINES...5 to 6.

* IMPACTS...any fires that develop will likely spread rapidly. 
  Outdoor burning is strongly discouraged.

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.

&&

$$

WYZ301-302-230300-
/O.CON.KCYS.FW.A.0008.210623T1700Z-210624T0200Z/
Niobrara/Lower Elevations of Converse/Thunder Basin National
Grassland-North Laramie Range/Medicine Bow NF-
1252 PM MDT Tue Jun 22 2021

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM WEDNESDAY MORNING
THROUGH WEDNESDAY EVENING FOR GUSTY WEST WINDS AND LOW HUMIDITY...

* AFFECTED AREA...Fire weather zones 301 and 302.

* WIND...West winds of 20 to 25 mph sustained with gusts to 35 
  mph.

* HUMIDITY...Afternoon humidity 11 to 17 percent.

* HAINES...5 to 6.

* 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.

&&

$$

TT

369 
WWUS85 KCYS 230154
RFWCYS

URGENT - FIRE WEATHER MESSAGE
National Weather Service Cheyenne WY
754 PM MDT Tue Jun 22 2021

...FIRE WEATHER WATCHES REMAIN IN EFFECT FOR WEDNESDAY ACROSS SOUTHEAST
WYOMING FIRE WEATHER ZONES WHERE FUELS ARE REPORTED READY...

WYZ305-307-309-231200-
/O.EXP.KCYS.FW.W.0010.000000T0000Z-210623T0200Z/
/O.CON.KCYS.FW.A.0008.210623T1700Z-210624T0200Z/
Sierra Madre Range/Medicine Bow NF-Snowy Range/Medicine Bow NF-
South Laramie Range/Medicine Bow NF-
754 PM MDT Tue Jun 22 2021

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM WEDNESDAY MORNING
THROUGH WEDNESDAY EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR 
FIRE WEATHER ZONES 305, 307, AND 309... 

...RED FLAG WARNING WILL EXPIRE AT 8 PM MDT THIS EVENING FOR 
GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 305, 307, AND 
309...


* AFFECTED AREA...Fire weather zones 305...307 and 309.

* WIND...West winds of 20 to 25 mph sustained with gusts of 35 
  to 40 mph this afternoon. Similar winds are expected 
  Wednesday. 

* HUMIDITY...Afternoon humidity 10 to 16 percent.

* HAINES...5 to 6.

* IMPACTS...any fires that develop will likely spread rapidly. 
  Outdoor burning is strongly discouraged.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

WYZ301-302-231200-
/O.CON.KCYS.FW.A.0008.210623T1700Z-210624T0200Z/
Niobrara/Lower Elevations of Converse/Thunder Basin National
Grassland-North Laramie Range/Medicine Bow NF-
754 PM MDT Tue Jun 22 2021

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM WEDNESDAY MORNING
THROUGH WEDNESDAY EVENING FOR GUSTY WEST WINDS AND LOW HUMIDITY 
FOR FIRE WEATHER ZONES 301 AND 302...

* AFFECTED AREA...Fire weather zones 301 and 302.

* WIND...West winds of 20 to 25 mph sustained with gusts to 35 
  mph.

* HUMIDITY...Afternoon humidity 11 to 17 percent.

* HAINES...5 to 6.

* 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.

&&

$$

WM

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 20, 7:45 PM MDT	Special Weather Statement	CYS	Goshen	45 min
Jun 21, 1:38 AM MDT	Fire Weather Watch	CYS		12 hr
Jun 21, 1:38 AM MDT	Fire Weather Watch	CYS		56 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.