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Fire Weather Watch 0013
Issued by the Cheyenne Forecast Office

Action Issued Starts Expiration
New 2025-12-18 04:04:35 2025-12-19 11:00:00 2025-12-20 00:00:00
New 2025-12-18 04:04:35 2025-12-19 11:00:00 2025-12-20 00:00:00
Continued 2025-12-18 05:07:36 2025-12-19 11:00:00 2025-12-20 00:00:00
Continued 2025-12-18 05:07:36 2025-12-19 11:00:00 2025-12-20 00:00:00
Upgraded 2025-12-18 11:49:17 2025-12-19 11:00:00 2025-12-20 00:00:00
Upgraded 2025-12-18 11:49:17 2025-12-19 11:00:00 2025-12-20 00:00:00


Action: New
Issued At: 2025-12-18 04:04:35

062 
WWUS85 KCYS 181004
RFWCYS

URGENT - FIRE WEATHER MESSAGE
National Weather Service Cheyenne WY
304 AM MST Thu Dec 18 2025

...RED FLAG WARNING IN EFFECT THIS MORNING AND AFTERNOON FOR
PORTIONS OF SOUTHEAST WYOMING AND THE SOUTHERN NEBRASKA
PANHANDLE...

...FIRE WEATHER WATCH IN EFFECT ON FRIDAY FOR MUCH OF THE HIGH
PLAINS...

NEZ437-WYZ430-431-190000-
/O.NEW.KCYS.FW.W.0021.251218T1200Z-251218T1800Z/
/O.NEW.KCYS.FW.A.0013.251219T1700Z-251220T0600Z/
Lodgepole Creek/Southern Nebraska Panhandle-
Laramie Foothills and High Plains-Laramie East High Plains-
304 AM MST Thu Dec 18 2025

...RED FLAG WARNING IN EFFECT UNTIL 11 AM MST THIS MORNING FOR LOW
RH AND STRONG WINDS FOR FIRE WEATHER ZONES 430, 431, AND 437... 

...FIRE WEATHER WATCH IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY
EVENING FOR LOW RH AND VERY STRONG WINDS FOR FIRE WEATHER ZONES 
430, 431, AND 437...

The National Weather Service in Cheyenne has issued a Red Flag
Warning, which is in effect until 11 AM MST this morning. a Fire
Weather Watch has also been issued. This Fire Weather Watch is in
effect from Friday morning through Friday evening. 

* AFFECTED AREA...Fire weather zones 430, 431 and 437.
  

* WIND...For the Red Flag Warning - Gusts 40 to 60 mph. For the 
  Fire Weather Watch - Gusts 50 to 70 mph.

* HUMIDITY...For the Red Flag Warning - RH values of 20 to 25%. 
  For the Fire Weather Watch - RH values of 15 to 20%.

* IMPACTS...any fires that develop will likely spread rapidly.
  Outdoor burning is not recommended. Although conditions will be
  borderline, a lack of significant precipitation combined with
  the high winds in the region will create a critical fire weather
  environment.

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
are forecast to occur. Listen for later forecasts and possible
Red Flag Warnings.

&&

$$

NEZ436-WYZ432-433-190000-
/O.NEW.KCYS.FW.A.0013.251219T1700Z-251220T0600Z/
Lower North Platte River Basin/Scottsbluff National Monument-
Bordeaux/Chugwater/Wheatland-Goshen/Middle-
Lower North Platte River Basin-
304 AM MST Thu Dec 18 2025

...FIRE WEATHER WATCH IN EFFECT FROM FRIDAY MORNING THROUGH
FRIDAY EVENING FOR LOW RH AND VERY STRONG WINDS FOR FIRE WEATHER 
ZONES 432, 433, AND 436...

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

* AFFECTED AREA...Fire weather zones 432, 433, and 436. 

* WIND...Gusts 50 to 75 mph.

* HUMIDITY...RH values of 15 to 20%.

* IMPACTS...any fires that develop will likely spread rapidly. 
  Outdoor burning is not recommended. Although conditions will be
  borderline, a lack of significant precipitation combined with
  the high winds in the region will create a critical fire weather
  environment.

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.

&&

$$


Action: New
Issued At: 2025-12-18 04:04:35

062 
WWUS85 KCYS 181004
RFWCYS

URGENT - FIRE WEATHER MESSAGE
National Weather Service Cheyenne WY
304 AM MST Thu Dec 18 2025

...RED FLAG WARNING IN EFFECT THIS MORNING AND AFTERNOON FOR
PORTIONS OF SOUTHEAST WYOMING AND THE SOUTHERN NEBRASKA
PANHANDLE...

...FIRE WEATHER WATCH IN EFFECT ON FRIDAY FOR MUCH OF THE HIGH
PLAINS...

NEZ437-WYZ430-431-190000-
/O.NEW.KCYS.FW.W.0021.251218T1200Z-251218T1800Z/
/O.NEW.KCYS.FW.A.0013.251219T1700Z-251220T0600Z/
Lodgepole Creek/Southern Nebraska Panhandle-
Laramie Foothills and High Plains-Laramie East High Plains-
304 AM MST Thu Dec 18 2025

...RED FLAG WARNING IN EFFECT UNTIL 11 AM MST THIS MORNING FOR LOW
RH AND STRONG WINDS FOR FIRE WEATHER ZONES 430, 431, AND 437... 

...FIRE WEATHER WATCH IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY
EVENING FOR LOW RH AND VERY STRONG WINDS FOR FIRE WEATHER ZONES 
430, 431, AND 437...

The National Weather Service in Cheyenne has issued a Red Flag
Warning, which is in effect until 11 AM MST this morning. a Fire
Weather Watch has also been issued. This Fire Weather Watch is in
effect from Friday morning through Friday evening. 

* AFFECTED AREA...Fire weather zones 430, 431 and 437.
  

* WIND...For the Red Flag Warning - Gusts 40 to 60 mph. For the 
  Fire Weather Watch - Gusts 50 to 70 mph.

* HUMIDITY...For the Red Flag Warning - RH values of 20 to 25%. 
  For the Fire Weather Watch - RH values of 15 to 20%.

* IMPACTS...any fires that develop will likely spread rapidly.
  Outdoor burning is not recommended. Although conditions will be
  borderline, a lack of significant precipitation combined with
  the high winds in the region will create a critical fire weather
  environment.

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
are forecast to occur. Listen for later forecasts and possible
Red Flag Warnings.

&&

$$

NEZ436-WYZ432-433-190000-
/O.NEW.KCYS.FW.A.0013.251219T1700Z-251220T0600Z/
Lower North Platte River Basin/Scottsbluff National Monument-
Bordeaux/Chugwater/Wheatland-Goshen/Middle-
Lower North Platte River Basin-
304 AM MST Thu Dec 18 2025

...FIRE WEATHER WATCH IN EFFECT FROM FRIDAY MORNING THROUGH
FRIDAY EVENING FOR LOW RH AND VERY STRONG WINDS FOR FIRE WEATHER 
ZONES 432, 433, AND 436...

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

* AFFECTED AREA...Fire weather zones 432, 433, and 436. 

* WIND...Gusts 50 to 75 mph.

* HUMIDITY...RH values of 15 to 20%.

* IMPACTS...any fires that develop will likely spread rapidly. 
  Outdoor burning is not recommended. Although conditions will be
  borderline, a lack of significant precipitation combined with
  the high winds in the region will create a critical fire weather
  environment.

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.

&&

$$


Action: Continued
Issued At: 2025-12-18 05:07:36

772 
WWUS85 KCYS 181107
RFWCYS

URGENT - FIRE WEATHER MESSAGE
National Weather Service Cheyenne WY
407 AM MST Thu Dec 18 2025

...CORRECTION FOR EXPIRATION OF RED FLAG WARNING...

...RED FLAG WARNING IN EFFECT THIS MORNING AND AFTERNOON FOR
PORTIONS OF SOUTHEAST WYOMING AND THE SOUTHERN NEBRASKA
PANHANDLE...

...FIRE WEATHER WATCH IN EFFECT ON FRIDAY FOR MUCH OF THE HIGH
PLAINS...

NEZ437-WYZ430-431-190000-
/O.EXT.KCYS.FW.W.0021.251218T1200Z-251219T0000Z/
/O.CON.KCYS.FW.A.0013.251219T1700Z-251220T0600Z/
Lodgepole Creek/Southern Nebraska Panhandle-
Laramie Foothills and High Plains-Laramie East High Plains-
407 AM MST Thu Dec 18 2025

...RED FLAG WARNING IN EFFECT UNTIL 5 PM MST THIS AFTERNOON FOR 
LOW RH AND STRONG WINDS FOR FIRE WEATHER ZONES 430, 431, AND 
437... 
...FIRE WEATHER WATCH REMAINS IN EFFECT FROM FRIDAY MORNING THROUGH
FRIDAY EVENING FOR LOW RH AND VERY STRONG WINDS FOR FIRE WEATHER 
ZONES 430, 431, AND 437...

The National Weather Service in Cheyenne has issued a Red Flag
Warning, which is in effect until 5 PM MST this morning. a Fire 
Weather Watch has also been issued. This Fire Weather Watch is in 
effect from Friday morning through Friday evening.

* AFFECTED AREA...Fire weather zones 430, 431 and 437.

* WIND...For the Red Flag Warning - Gusts 40 to 60 mph. For the 
  Fire Weather Watch - Gusts 50 to 70 mph.

* HUMIDITY...For the Red Flag Warning - RH values of 20 to 25%. 
  For the Fire Weather Watch - RH values of 15 to 20%.

* IMPACTS...any fires that develop will likely spread rapidly. 
  Outdoor burning is not recommended. Although conditions will 
  be borderline, a lack of significant precipitation combined 
  with the high winds in the region will create a critical fire 
  weather environment. 

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
are forecast to occur. Listen for later forecasts and possible
Red Flag Warnings.

&&

$$

NEZ436-WYZ432-433-190000-
/O.CON.KCYS.FW.A.0013.251219T1700Z-251220T0600Z/
Lower North Platte River Basin/Scottsbluff National Monument-
Bordeaux/Chugwater/Wheatland-Goshen/Middle-
Lower North Platte River Basin-
407 AM MST Thu Dec 18 2025

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM FRIDAY MORNING
THROUGH FRIDAY EVENING FOR LOW RH AND VERY STRONG WINDS FOR FIRE 
WEATHER ZONES 432, 433, AND 436...

* AFFECTED AREA...Fire weather zones 432, 433, and 436.

* WIND...Gusts 50 to 75 mph.

* HUMIDITY...RH values of 15 to 20%.

* IMPACTS...any fires that develop will likely spread rapidly. 
  Outdoor burning is not recommended. Although conditions will 
  be borderline, a lack of significant precipitation combined 
  with the high winds in the region will create a critical fire 
  weather environment. 

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.

&&

$$


Action: Continued
Issued At: 2025-12-18 05:07:36

772 
WWUS85 KCYS 181107
RFWCYS

URGENT - FIRE WEATHER MESSAGE
National Weather Service Cheyenne WY
407 AM MST Thu Dec 18 2025

...CORRECTION FOR EXPIRATION OF RED FLAG WARNING...

...RED FLAG WARNING IN EFFECT THIS MORNING AND AFTERNOON FOR
PORTIONS OF SOUTHEAST WYOMING AND THE SOUTHERN NEBRASKA
PANHANDLE...

...FIRE WEATHER WATCH IN EFFECT ON FRIDAY FOR MUCH OF THE HIGH
PLAINS...

NEZ437-WYZ430-431-190000-
/O.EXT.KCYS.FW.W.0021.251218T1200Z-251219T0000Z/
/O.CON.KCYS.FW.A.0013.251219T1700Z-251220T0600Z/
Lodgepole Creek/Southern Nebraska Panhandle-
Laramie Foothills and High Plains-Laramie East High Plains-
407 AM MST Thu Dec 18 2025

...RED FLAG WARNING IN EFFECT UNTIL 5 PM MST THIS AFTERNOON FOR 
LOW RH AND STRONG WINDS FOR FIRE WEATHER ZONES 430, 431, AND 
437... 
...FIRE WEATHER WATCH REMAINS IN EFFECT FROM FRIDAY MORNING THROUGH
FRIDAY EVENING FOR LOW RH AND VERY STRONG WINDS FOR FIRE WEATHER 
ZONES 430, 431, AND 437...

The National Weather Service in Cheyenne has issued a Red Flag
Warning, which is in effect until 5 PM MST this morning. a Fire 
Weather Watch has also been issued. This Fire Weather Watch is in 
effect from Friday morning through Friday evening.

* AFFECTED AREA...Fire weather zones 430, 431 and 437.

* WIND...For the Red Flag Warning - Gusts 40 to 60 mph. For the 
  Fire Weather Watch - Gusts 50 to 70 mph.

* HUMIDITY...For the Red Flag Warning - RH values of 20 to 25%. 
  For the Fire Weather Watch - RH values of 15 to 20%.

* IMPACTS...any fires that develop will likely spread rapidly. 
  Outdoor burning is not recommended. Although conditions will 
  be borderline, a lack of significant precipitation combined 
  with the high winds in the region will create a critical fire 
  weather environment. 

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
are forecast to occur. Listen for later forecasts and possible
Red Flag Warnings.

&&

$$

NEZ436-WYZ432-433-190000-
/O.CON.KCYS.FW.A.0013.251219T1700Z-251220T0600Z/
Lower North Platte River Basin/Scottsbluff National Monument-
Bordeaux/Chugwater/Wheatland-Goshen/Middle-
Lower North Platte River Basin-
407 AM MST Thu Dec 18 2025

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM FRIDAY MORNING
THROUGH FRIDAY EVENING FOR LOW RH AND VERY STRONG WINDS FOR FIRE 
WEATHER ZONES 432, 433, AND 436...

* AFFECTED AREA...Fire weather zones 432, 433, and 436.

* WIND...Gusts 50 to 75 mph.

* HUMIDITY...RH values of 15 to 20%.

* IMPACTS...any fires that develop will likely spread rapidly. 
  Outdoor burning is not recommended. Although conditions will 
  be borderline, a lack of significant precipitation combined 
  with the high winds in the region will create a critical fire 
  weather environment. 

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.

&&

$$


Action: Upgraded
Issued At: 2025-12-18 11:49:17

838 
WWUS85 KCYS 181748
RFWCYS

URGENT - FIRE WEATHER MESSAGE
National Weather Service Cheyenne WY
1048 AM MST Thu Dec 18 2025


...RED FLAG WARNING IN EFFECT THIS MORNING AND AFTERNOON FOR
PORTIONS OF SOUTHEAST WYOMING AND THE SOUTHERN NEBRASKA
PANHANDLE...

...RED FLAG WARNING NOW IN EFFECT ON FRIDAY FOR MUCH OF THE HIGH 
PLAINS...

NEZ437-WYZ430-431-191200-
/O.UPG.KCYS.FW.A.0013.251219T1700Z-251220T0600Z/
/O.NEW.KCYS.FW.W.0022.251219T1700Z-251220T0600Z/
/O.CON.KCYS.FW.W.0021.000000T0000Z-251219T0000Z/
Lodgepole Creek/Southern Nebraska Panhandle-
Laramie Foothills and High Plains-Laramie East High Plains-
1048 AM MST Thu Dec 18 2025

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON FOR LOW RH AND STRONG WINDS FOR FIRE WEATHER ZONES 430,
431, AND 437...

...RED FLAG WARNING IN EFFECT FROM 10 AM TO 11 PM
MST FRIDAY FOR GUSTY WINDS AND LOW HUMIDITY...

The National Weather Service in Cheyenne has issued a Red Flag
Warning, which is in effect from 10 AM to 11 PM MST Friday. The
Fire Weather Watch is no longer in effect. 

* AFFECTED AREA...Fire weather zones 430, 431 and 437.

* WIND...For today - Gusts 40 to 60 mph. For tomorrow - Gusts 50 
  to 70 mph.

* HUMIDITY...For today - RH values of 20 to 25%. For tomorrow - 
  RH values of 15 to 20%.

* IMPACTS...Any fires that develop will likely spread rapidly. 
  Outdoor burning is not recommended. Although conditions will be 
  borderline, a lack of significant precipitation combined with 
  the high winds in the region will create a critical fire weather
  environment.


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.

&&

$$

NEZ436-WYZ432-433-191200-
/O.UPG.KCYS.FW.A.0013.251219T1700Z-251220T0600Z/
/O.NEW.KCYS.FW.W.0022.251219T1700Z-251220T0600Z/
Lower North Platte River Basin/Scottsbluff National Monument-
Bordeaux/Chugwater/Wheatland-Goshen/Middle-
Lower North Platte River Basin-
1048 AM MST Thu Dec 18 2025

...RED FLAG WARNING IN EFFECT FROM 10 AM TO 11 PM MST FRIDAY FOR
GUSTY WINDS AND LOW HUMIDITY....

The National Weather Service in Cheyenne has issued a Red Flag
Warning, which is in effect from 10 AM to 11 PM MST Friday. The
Fire Weather Watch is no longer in effect. 

* WIND...Gusts 50 to 75 mph.

* HUMIDITY...RH values of 15 to 20%.

* IMPACTS...Any fires that develop will likely spread rapidly. 
  Outdoor burning is not recommended. Although conditions will be 
  borderline, a lack of significant precipitation combined with 
  the high winds in the region will create a critical fire weather
  environment.


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.

&&

$$

NEZ434-435-WYZ417-418-191200-
/O.NEW.KCYS.FW.W.0022.251219T1700Z-251220T0600Z/
Pine Ridge/Nebraska National Forest-
Box Butte/South Sioux/Niobrara River-
Niobrara/Lower Elevations of Converse/Thunder Basin National
Grassland-
Middle North Platte River Basin/Niobrara and Converse High Plains-
1048 AM MST Thu Dec 18 2025

...RED FLAG WARNING IN EFFECT FROM 10 AM TO 11 PM MST FRIDAY FOR
GUSTY WINDS AND LOW HUMIDITY...

The National Weather Service in Cheyenne has issued a Red Flag
Warning, which is in effect from 10 AM to 11 PM MST Friday. 

* AFFECTED AREA...Fire weather zones 434, 435, 417, 418. 

* WIND...Gusts 40 to 60 mph.

* HUMIDITY...RH values 15 to 30%.

* IMPACTS...Any fires that develop will likely spread rapidly. 
  Outdoor burning is not recommended. Although conditions will be 
  borderline, a lack of significant precipitation combined with 
  the high winds in the region will create a critical fire weather
  environment.

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.

&&

$$


Action: Upgraded
Issued At: 2025-12-18 11:49:17

838 
WWUS85 KCYS 181748
RFWCYS

URGENT - FIRE WEATHER MESSAGE
National Weather Service Cheyenne WY
1048 AM MST Thu Dec 18 2025


...RED FLAG WARNING IN EFFECT THIS MORNING AND AFTERNOON FOR
PORTIONS OF SOUTHEAST WYOMING AND THE SOUTHERN NEBRASKA
PANHANDLE...

...RED FLAG WARNING NOW IN EFFECT ON FRIDAY FOR MUCH OF THE HIGH 
PLAINS...

NEZ437-WYZ430-431-191200-
/O.UPG.KCYS.FW.A.0013.251219T1700Z-251220T0600Z/
/O.NEW.KCYS.FW.W.0022.251219T1700Z-251220T0600Z/
/O.CON.KCYS.FW.W.0021.000000T0000Z-251219T0000Z/
Lodgepole Creek/Southern Nebraska Panhandle-
Laramie Foothills and High Plains-Laramie East High Plains-
1048 AM MST Thu Dec 18 2025

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON FOR LOW RH AND STRONG WINDS FOR FIRE WEATHER ZONES 430,
431, AND 437...

...RED FLAG WARNING IN EFFECT FROM 10 AM TO 11 PM
MST FRIDAY FOR GUSTY WINDS AND LOW HUMIDITY...

The National Weather Service in Cheyenne has issued a Red Flag
Warning, which is in effect from 10 AM to 11 PM MST Friday. The
Fire Weather Watch is no longer in effect. 

* AFFECTED AREA...Fire weather zones 430, 431 and 437.

* WIND...For today - Gusts 40 to 60 mph. For tomorrow - Gusts 50 
  to 70 mph.

* HUMIDITY...For today - RH values of 20 to 25%. For tomorrow - 
  RH values of 15 to 20%.

* IMPACTS...Any fires that develop will likely spread rapidly. 
  Outdoor burning is not recommended. Although conditions will be 
  borderline, a lack of significant precipitation combined with 
  the high winds in the region will create a critical fire weather
  environment.


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.

&&

$$

NEZ436-WYZ432-433-191200-
/O.UPG.KCYS.FW.A.0013.251219T1700Z-251220T0600Z/
/O.NEW.KCYS.FW.W.0022.251219T1700Z-251220T0600Z/
Lower North Platte River Basin/Scottsbluff National Monument-
Bordeaux/Chugwater/Wheatland-Goshen/Middle-
Lower North Platte River Basin-
1048 AM MST Thu Dec 18 2025

...RED FLAG WARNING IN EFFECT FROM 10 AM TO 11 PM MST FRIDAY FOR
GUSTY WINDS AND LOW HUMIDITY....

The National Weather Service in Cheyenne has issued a Red Flag
Warning, which is in effect from 10 AM to 11 PM MST Friday. The
Fire Weather Watch is no longer in effect. 

* WIND...Gusts 50 to 75 mph.

* HUMIDITY...RH values of 15 to 20%.

* IMPACTS...Any fires that develop will likely spread rapidly. 
  Outdoor burning is not recommended. Although conditions will be 
  borderline, a lack of significant precipitation combined with 
  the high winds in the region will create a critical fire weather
  environment.


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.

&&

$$

NEZ434-435-WYZ417-418-191200-
/O.NEW.KCYS.FW.W.0022.251219T1700Z-251220T0600Z/
Pine Ridge/Nebraska National Forest-
Box Butte/South Sioux/Niobrara River-
Niobrara/Lower Elevations of Converse/Thunder Basin National
Grassland-
Middle North Platte River Basin/Niobrara and Converse High Plains-
1048 AM MST Thu Dec 18 2025

...RED FLAG WARNING IN EFFECT FROM 10 AM TO 11 PM MST FRIDAY FOR
GUSTY WINDS AND LOW HUMIDITY...

The National Weather Service in Cheyenne has issued a Red Flag
Warning, which is in effect from 10 AM to 11 PM MST Friday. 

* AFFECTED AREA...Fire weather zones 434, 435, 417, 418. 

* WIND...Gusts 40 to 60 mph.

* HUMIDITY...RH values 15 to 30%.

* IMPACTS...Any fires that develop will likely spread rapidly. 
  Outdoor burning is not recommended. Although conditions will be 
  borderline, a lack of significant precipitation combined with 
  the high winds in the region will create a critical fire weather
  environment.

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.

&&

$$



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