Red Flag Warning 9, NWS Cheyenne, WY

222 
WWUS85 KCYS 180131
RFWCYS

URGENT - FIRE WEATHER MESSAGE
National Weather Service Cheyenne WY
731 PM MDT Tue Mar 17 2026


NEZ436-437-WYZ430>433-181200-
/O.CAN.KCYS.FW.W.0008.000000T0000Z-260318T0200Z/
/O.CON.KCYS.FW.W.0009.260318T1600Z-260322T0200Z/
Lower North Platte River Basin/Scottsbluff National Monument-
Lodgepole Creek/Southern Nebraska Panhandle-
Laramie Foothills and High Plains-Laramie East High Plains-
Bordeaux/Chugwater/Wheatland-Goshen/Middle-
Lower North Platte River Basin-
731 PM MDT Tue Mar 17 2026

...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM WEDNESDAY TO
8 PM MDT SATURDAY FOR LOW HUMIDITY WITH STRONG AND GUSTY WINDS
FOR FIRE WEATHER ZONES 430, 431, 432, 433, 436, AND 437...

...RED FLAG WARNING IS CANCELLED FOR LOW HUMIDITY WITH STRONG AND
GUSTY WINDS FOR FIRE WEATHER ZONES 430, 431, 432, 433, 436, AND
437...

The National Weather Service in Cheyenne has cancelled the Red
Flag Warning that was in effect until 8 PM MDT this evening.
However, the Red Flag Warning which is in effect from 10 AM 
Wednesday to 8 PM MDT Saturday still remains valid.

* AFFECTED AREA...Fire weather zone 430, 431, 432, 433, 436, and 
  437. 

* WIND...Sustained winds 20 to 30 mph, gusting up to 35 mph.

* HUMIDITY...Between 10 and 15 percent.

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

* ADDITIONAL DETAILS...Poor overnight humidity recoveries are
  expected for the duration of the Red Flag Warning. Well above
  average temperatures are also expected which will contribute
  considerably to the dry conditions.

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>419-181200-
/O.CON.KCYS.FW.W.0009.260318T1600Z-260322T0200Z/
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-
North Laramie Range and Adjacent High Plains-
731 PM MDT Tue Mar 17 2026

...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM WEDNESDAY TO
8 PM MDT SATURDAY FOR CRITICAL RELATIVE HUMIDITY AND BREEZY
CONDITIONS...

* WIND...Sustained winds 20 to 30 mph, gusting up to 35 mph.

* HUMIDITY...10 to 15 percent.

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

* ADDITIONAL DETAILS...Poor overnight humidity recoveries are 
  expected for the duration of the Red Flag Warning. Well above 
  average temperatures are also expected which will contribute 
  considerably to the dry conditions.

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.

&&

$$

460 
WWUS85 KCYS 180608
RFWCYS

URGENT - FIRE WEATHER MESSAGE
National Weather Service Cheyenne WY
1208 AM MDT Wed Mar 18 2026

...Multi Day Red Flag Warning...

.Critical fire conditions are expected through the week, with poor 
overnight humidity recoveries and no precipitation.

NEZ434>437-WYZ417>419-430>433-190000-
/O.CON.KCYS.FW.W.0009.260318T1600Z-260322T0200Z/
Pine Ridge/Nebraska National Forest-
Box Butte/South Sioux/Niobrara River-
Lower North Platte River Basin/Scottsbluff National Monument-
Lodgepole Creek/Southern Nebraska Panhandle-
Niobrara/Lower Elevations of Converse/Thunder Basin National
Grassland-
Middle North Platte River Basin/Niobrara and Converse High Plains-
North Laramie Range and Adjacent High Plains-
Laramie Foothills and High Plains-Laramie East High Plains-
Bordeaux/Chugwater/Wheatland-Goshen/Middle-
Lower North Platte River Basin-
1208 AM MDT Wed Mar 18 2026

...RED FLAG WARNING REMAINS IN EFFECT FROM 10 AM THIS MORNING TO
8 PM MDT SATURDAY FOR LOW HUMIDITY, GUSTY WINDS, AND POOR
OVERNIGHT HUMIDITY RECOVERIES FOR FIRE WEATHER ZONES 417, 418, 
419, 430, 431, 432, 433, 434, 435, 436, AND 437...

* AFFECTED AREA...Fire weather zone 417, 418, 419, 430, 431, 432,
  433, 434, 435, 436, and 437.

* WIND...Sustained winds 20 to 30 mph, gusting up to 35 mph.

* HUMIDITY...10 to 15 percent.

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

* ADDITIONAL DETAILS...Poor overnight humidity recoveries are 
  expected for the duration of the Red Flag Warning. Well above 
  average temperatures are also expected which will contribute 
  considerably to the dry conditions.

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.

&&

$$

615 
WWUS85 KCYS 181637
RFWCYS

URGENT - FIRE WEATHER MESSAGE
National Weather Service Cheyenne WY
1037 AM MDT Wed Mar 18 2026

...Multi Day Red Flag Warning...

.Critical fire conditions are expected through the week, with
poor overnight humidity recoveries and no precipitation.

NEZ434>437-WYZ417>419-430>433-191200-
/O.CON.KCYS.FW.W.0009.000000T0000Z-260322T0200Z/
Pine Ridge/Nebraska National Forest-
Box Butte/South Sioux/Niobrara River-
Lower North Platte River Basin/Scottsbluff National Monument-
Lodgepole Creek/Southern Nebraska Panhandle-
Niobrara/Lower Elevations of Converse/Thunder Basin National
Grassland-
Middle North Platte River Basin/Niobrara and Converse High Plains-
North Laramie Range and Adjacent High Plains-
Laramie Foothills and High Plains-Laramie East High Plains-
Bordeaux/Chugwater/Wheatland-Goshen/Middle-
Lower North Platte River Basin-
1037 AM MDT Wed Mar 18 2026

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT SATURDAY FOR
LOW HUMIDITY, GUSTY WINDS, AND POOR OVERNIGHT HUMIDITY RECOVERIES
FOR FIRE WEATHER ZONES 417, 418, 419, 430, 431, 432, 433, 434,
435, 436, AND 437...

* AFFECTED AREA...Fire weather zone 417, 418, 419, 430, 431, 
  432, 433, 434, 435, 436, and 437. 

* WIND...Sustained winds 20 to 30 mph, gusting up to 35 mph.

* HUMIDITY...8 to 13 percent.

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

* ADDITIONAL DETAILS...Poor overnight humidity recoveries are 
  expected for the duration of the Red Flag Warning. Well above 
  average temperatures are also expected which will contribute 
  considerably to the dry conditions.

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.

&&

$$

055 
WWUS85 KCYS 190754
RFWCYS

URGENT - FIRE WEATHER MESSAGE
National Weather Service Cheyenne WY
154 AM MDT Thu Mar 19 2026

...Multi Day Red Flag Warning...

.Critical fire conditions are expected through the week, with
poor overnight humidity recoveries and no precipitation.

NEZ434>437-WYZ417>419-430>433-192200-
/O.CON.KCYS.FW.W.0009.000000T0000Z-260322T0200Z/
Pine Ridge/Nebraska National Forest-
Box Butte/South Sioux/Niobrara River-
Lower North Platte River Basin/Scottsbluff National Monument-
Lodgepole Creek/Southern Nebraska Panhandle-
Niobrara/Lower Elevations of Converse/Thunder Basin National
Grassland-
Middle North Platte River Basin/Niobrara and Converse High Plains-
North Laramie Range and Adjacent High Plains-
Laramie Foothills and High Plains-Laramie East High Plains-
Bordeaux/Chugwater/Wheatland-Goshen/Middle-
Lower North Platte River Basin-
154 AM MDT Thu Mar 19 2026

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT SATURDAY FOR
FIRE WEATHER ZONES 417, 418, 419, 430, 431, 432, 433, 434, 435, 
436, AND 437...

* AFFECTED AREA...Fire weather zone 417, 418, 419, 430, 431, 
  432, 433, 434, 435, 436, and 437. 

* WIND...Sustained winds 20 to 30 mph, gusting up to 35 mph.

* HUMIDITY...8 to 13 percent.

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

* ADDITIONAL DETAILS...Poor overnight humidity recoveries are 
  expected for the duration of the Red Flag Warning. Well above 
  average temperatures are also expected which will contribute 
  considerably to the dry conditions.

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.

&&

$$

340 
WWUS85 KCYS 191745
RFWCYS

URGENT - FIRE WEATHER MESSAGE
National Weather Service Cheyenne WY
1145 AM MDT Thu Mar 19 2026

...Multi Day Red Flag Warning...

.Critical fire conditions are expected through the week, with
poor overnight humidity recoveries and no precipitation.

WYZ420>423-425-427>429-200145-
/O.EXA.KCYS.FW.W.0009.000000T0000Z-260322T0200Z/
North Laramie Valley/Shirley Basin-
Ferris/Seminoe/Shirley Mountains-Central and West Carbon-
Southwest Carbon County-Upper North Platte River Basin-
North Snowy Range Foothills-Southern Laramie Valley-
Southern Laramie Range-
1145 AM MDT Thu Mar 19 2026

...RED FLAG WARNING IN EFFECT UNTIL 8 PM MDT SATURDAY FOR FIRE
WEATHER ZONES 420, 421, 422, 423, 425, 427, 428 AND 429...

The National Weather Service in Cheyenne has issued a Red Flag
Warning, which is in effect until 8 PM MDT Saturday. 

* AFFECTED AREA...Fire weather zone 420, 421, 422, 423, 425, 427,
  428 and 429. 

* WIND...Sustained winds 20 to 30 mph, gusting up to 40 mph.

* HUMIDITY...9 to 12 percent.

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

* ADDITIONAL DETAILS...Poor overnight humidity recoveries are 
  expected for the duration of the Red Flag Warning. Well above 
  average temperatures are also expected which will contribute 
  considerably to the dry conditions.

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>437-WYZ417>419-430>433-200145-
/O.CON.KCYS.FW.W.0009.000000T0000Z-260322T0200Z/
Pine Ridge/Nebraska National Forest-
Box Butte/South Sioux/Niobrara River-
Lower North Platte River Basin/Scottsbluff National Monument-
Lodgepole Creek/Southern Nebraska Panhandle-
Niobrara/Lower Elevations of Converse/Thunder Basin National
Grassland-
Middle North Platte River Basin/Niobrara and Converse High Plains-
North Laramie Range and Adjacent High Plains-
Laramie Foothills and High Plains-Laramie East High Plains-
Bordeaux/Chugwater/Wheatland-Goshen/Middle-
Lower North Platte River Basin-
1145 AM MDT Thu Mar 19 2026

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT SATURDAY FOR
FIRE WEATHER ZONES 417, 418, 419, 430, 431, 432, 433, 434, 435,
436, AND 437...

* AFFECTED AREA...Fire weather zone 417, 418, 419, 430, 431, 
  432, 433, 434, 435, 436, and 437. 

* WIND...Sustained winds 20 to 30 mph, gusting up to 35 mph.

* HUMIDITY...7 to 12 percent.

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

* ADDITIONAL DETAILS...Poor overnight humidity recoveries are 
  expected for the duration of the Red Flag Warning. Well above 
  average temperatures are also expected which will contribute 
  considerably to the dry conditions.

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.

&&

$$

010 
WWUS85 KCYS 192135
RFWCYS

URGENT - FIRE WEATHER MESSAGE
National Weather Service Cheyenne WY
335 PM MDT Thu Mar 19 2026

...Multi Day Red Flag Warning...

.Critical fire conditions are expected through the week, with
poor overnight humidity recoveries and no precipitation.

NEZ434>437-WYZ417>419-430>433-201200-
/O.CON.KCYS.FW.W.0009.000000T0000Z-260322T0200Z/
Pine Ridge/Nebraska National Forest-
Box Butte/South Sioux/Niobrara River-
Lower North Platte River Basin/Scottsbluff National Monument-
Lodgepole Creek/Southern Nebraska Panhandle-
Niobrara/Lower Elevations of Converse/Thunder Basin National
Grassland-
Middle North Platte River Basin/Niobrara and Converse High Plains-
North Laramie Range and Adjacent High Plains-
Laramie Foothills and High Plains-Laramie East High Plains-
Bordeaux/Chugwater/Wheatland-Goshen/Middle-
Lower North Platte River Basin-
335 PM MDT Thu Mar 19 2026

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT SATURDAY FOR
FIRE WEATHER ZONES 417, 418, 419, 430, 431, 432, 433, 434, 435,
436, AND 437...

* AFFECTED AREA...Fire weather zone 417, 418, 419, 430, 431, 
  432, 433, 434, 435, 436, and 437. 

* WIND...Sustained winds 20 to 30 mph, gusting up to 35 mph.

* HUMIDITY...7 to 12 percent.

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

* ADDITIONAL DETAILS...Poor overnight humidity recoveries are 
  expected for the duration of the Red Flag Warning. Well above 
  average temperatures are also expected which will contribute 
  considerably to the dry conditions.

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.

&&

$$

WYZ420>423-425-427>429-201200-
/O.CON.KCYS.FW.W.0009.000000T0000Z-260322T0200Z/
North Laramie Valley/Shirley Basin-
Ferris/Seminoe/Shirley Mountains-Central and West Carbon-
Southwest Carbon County-Upper North Platte River Basin-
North Snowy Range Foothills-Southern Laramie Valley-
Southern Laramie Range-
335 PM MDT Thu Mar 19 2026

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT SATURDAY FOR
FIRE WEATHER ZONES 420, 421, 422, 423, 425, 427, 428 AND 429...

* AFFECTED AREA...Fire weather zone 420, 421, 422, 423, 425, 
  427,428 and 429. 

* WIND...Sustained winds 20 to 30 mph, gusting up to 40 mph.

* HUMIDITY...9 to 12 percent.

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

* ADDITIONAL DETAILS...Poor overnight humidity recoveries are 
  expected for the duration of the Red Flag Warning. Well above 
  average temperatures are also expected which will contribute 
  considerably to the dry conditions.

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.

&&

$$

048 
WWUS85 KCYS 200712
RFWCYS

URGENT - FIRE WEATHER MESSAGE
National Weather Service Cheyenne WY
112 AM MDT Fri Mar 20 2026

...Multi Day Red Flag Warning...

.Critical fire conditions are expected through the week, with
poor overnight humidity recoveries and no precipitation.

NEZ434>437-WYZ417>419-430>433-202200-
/O.CON.KCYS.FW.W.0009.000000T0000Z-260322T0200Z/
Pine Ridge/Nebraska National Forest-
Box Butte/South Sioux/Niobrara River-
Lower North Platte River Basin/Scottsbluff National Monument-
Lodgepole Creek/Southern Nebraska Panhandle-
Niobrara/Lower Elevations of Converse/Thunder Basin National
Grassland-
Middle North Platte River Basin/Niobrara and Converse High Plains-
North Laramie Range and Adjacent High Plains-
Laramie Foothills and High Plains-Laramie East High Plains-
Bordeaux/Chugwater/Wheatland-Goshen/Middle-
Lower North Platte River Basin-
112 AM MDT Fri Mar 20 2026

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT SATURDAY FOR
FIRE WEATHER ZONES 417, 418, 419, 430, 431, 432, 433, 434, 435,
436, AND 437...

* AFFECTED AREA...Fire weather zone 417, 418, 419, 430, 431, 
  432, 433, 434, 435, 436, and 437. 

* WIND...Sustained winds 15 to 25 mph, gusting up to 35 mph.

* HUMIDITY...7 to 12 percent.

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

* ADDITIONAL DETAILS...Poor overnight humidity recoveries are 
  expected for the duration of the Red Flag Warning. Well above 
  average temperatures are also expected which will contribute 
  considerably to the dry conditions.

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.

&&

$$

WYZ420>423-425-427>429-202200-
/O.CON.KCYS.FW.W.0009.000000T0000Z-260322T0200Z/
North Laramie Valley/Shirley Basin-
Ferris/Seminoe/Shirley Mountains-Central and West Carbon-
Southwest Carbon County-Upper North Platte River Basin-
North Snowy Range Foothills-Southern Laramie Valley-
Southern Laramie Range-
112 AM MDT Fri Mar 20 2026

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT SATURDAY FOR
FIRE WEATHER ZONES 420, 421, 422, 423, 425, 427, 428 AND 429...

* AFFECTED AREA...Fire weather zone 420, 421, 422, 423, 425, 
  427,428 and 429. 

* WIND...Sustained winds 20 to 30 mph, gusting up to 40 mph.

* HUMIDITY...9 to 12 percent.

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

* ADDITIONAL DETAILS...Poor overnight humidity recoveries are 
  expected for the duration of the Red Flag Warning. Well above 
  average temperatures are also expected which will contribute 
  considerably to the dry conditions.

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.

&&

$$

184 
WWUS85 KCYS 201748
RFWCYS

URGENT - FIRE WEATHER MESSAGE
National Weather Service Cheyenne WY
1148 AM MDT Fri Mar 20 2026

...Multi Day Red Flag Warning...

.Critical fire conditions are expected through the week, with
poor overnight humidity recoveries and no precipitation.

NEZ434>437-WYZ417>419-430>433-211200-
/O.CON.KCYS.FW.W.0009.000000T0000Z-260322T0200Z/
Pine Ridge/Nebraska National Forest-
Box Butte/South Sioux/Niobrara River-
Lower North Platte River Basin/Scottsbluff National Monument-
Lodgepole Creek/Southern Nebraska Panhandle-
Niobrara/Lower Elevations of Converse/Thunder Basin National
Grassland-
Middle North Platte River Basin/Niobrara and Converse High Plains-
North Laramie Range and Adjacent High Plains-
Laramie Foothills and High Plains-Laramie East High Plains-
Bordeaux/Chugwater/Wheatland-Goshen/Middle-
Lower North Platte River Basin-
1148 AM MDT Fri Mar 20 2026

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT SATURDAY FOR
BREEZY WINDS, LOW RH, AND WARM TEMPERATURES FOR FIRE WEATHER 
ZONES 417, 418, 419, 430, 431, 432, 433, 434, 435, 436, AND 437...

* AFFECTED AREA...Fire weather zone 417, 418, 419, 430, 431, 
  432, 433, 434, 435, 436, and 437. 

* WIND...Sustained winds 15 to 25 mph, gusting up to 35 mph.

* HUMIDITY...7 to 12 percent.

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

* ADDITIONAL DETAILS...Poor overnight humidity recoveries are 
  expected for the duration of the Red Flag Warning. Well above 
  average temperatures are also expected which will contribute 
  considerably to the dry conditions.

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.

&&

$$

WYZ420>423-425-427>429-211200-
/O.CON.KCYS.FW.W.0009.000000T0000Z-260322T0200Z/
North Laramie Valley/Shirley Basin-
Ferris/Seminoe/Shirley Mountains-Central and West Carbon-
Southwest Carbon County-Upper North Platte River Basin-
North Snowy Range Foothills-Southern Laramie Valley-
Southern Laramie Range-
1148 AM MDT Fri Mar 20 2026

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT SATURDAY FOR
BREEZY WINDS, LOW RH, AND WARM TEMPERATURES FOR FIRE WEATHER 
ZONES 420, 421, 422, 423, 425, 427, 428, AND 429...

* AFFECTED AREA...Fire weather zone 420, 421, 422, 423, 425, 
  427,428 and 429. 

* WIND...Sustained winds 20 to 30 mph, gusting up to 40 mph.

* HUMIDITY...9 to 12 percent.

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

* ADDITIONAL DETAILS...Poor overnight humidity recoveries are 
  expected for the duration of the Red Flag Warning. Well above 
  average temperatures are also expected which will contribute 
  considerably to the dry conditions.

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.

&&

$$

729 
WWUS85 KCYS 210730
RFWCYS

URGENT - FIRE WEATHER MESSAGE
National Weather Service Cheyenne WY
130 AM MDT Sat Mar 21 2026

NEZ434>437-WYZ417>419-430>433-212130-
/O.CON.KCYS.FW.W.0009.000000T0000Z-260322T0200Z/
Pine Ridge/Nebraska National Forest-
Box Butte/South Sioux/Niobrara River-
Lower North Platte River Basin/Scottsbluff National Monument-
Lodgepole Creek/Southern Nebraska Panhandle-
Niobrara/Lower Elevations of Converse/Thunder Basin National
Grassland-
Middle North Platte River Basin/Niobrara and Converse High Plains-
North Laramie Range and Adjacent High Plains-
Laramie Foothills and High Plains-Laramie East High Plains-
Bordeaux/Chugwater/Wheatland-Goshen/Middle-
Lower North Platte River Basin-
130 AM MDT Sat Mar 21 2026

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING
FOR FIRE WEATHER ZONES 417, 418, 419, 430, 431, 432, 433, 434, 
435, 436, AND 437...

* AFFECTED AREA...Fire weather zone 417, 418, 419, 430, 431, 
  432, 433, 434, 435, 436, and 437. 

* WIND...Sustained winds 15 to 25 mph, gusting up to 35 mph.

* HUMIDITY...7 to 12 percent.

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

* ADDITIONAL DETAILS...Poor overnight humidity recoveries are
  expected early Saturday morning. Well above average 
  temperatures are also expected which will contribute 
  considerably to the dry conditions.

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.

&&

$$

WYZ420>423-425-427>429-212130-
/O.CON.KCYS.FW.W.0009.000000T0000Z-260322T0200Z/
North Laramie Valley/Shirley Basin-
Ferris/Seminoe/Shirley Mountains-Central and West Carbon-
Southwest Carbon County-Upper North Platte River Basin-
North Snowy Range Foothills-Southern Laramie Valley-
Southern Laramie Range-
130 AM MDT Sat Mar 21 2026

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING
FOR FIRE WEATHER ZONES 420, 421, 422, 423, 425, 427, 428, AND 
429...

* AFFECTED AREA...Fire weather zone 420, 421, 422, 423, 425, 
  427,428 and 429. 

* WIND...Sustained winds 20 to 30 mph, gusting up to 40 mph.

* HUMIDITY...9 to 12 percent.

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

* ADDITIONAL DETAILS...Poor overnight humidity recoveries are
  expected early Saturday morning. Well above average 
  temperatures are also expected which will contribute 
  considerably to the dry conditions.

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.

&&

$$

123 
WWUS85 KCYS 211642
RFWCYS

URGENT - FIRE WEATHER MESSAGE
National Weather Service Cheyenne WY
1042 AM MDT Sat Mar 21 2026

NEZ434>437-WYZ417>419-430>433-220200-
/O.CON.KCYS.FW.W.0009.000000T0000Z-260322T0200Z/
Pine Ridge/Nebraska National Forest-
Box Butte/South Sioux/Niobrara River-
Lower North Platte River Basin/Scottsbluff National Monument-
Lodgepole Creek/Southern Nebraska Panhandle-
Niobrara/Lower Elevations of Converse/Thunder Basin National
Grassland-
Middle North Platte River Basin/Niobrara and Converse High Plains-
North Laramie Range and Adjacent High Plains-
Laramie Foothills and High Plains-Laramie East High Plains-
Bordeaux/Chugwater/Wheatland-Goshen/Middle-
Lower North Platte River Basin-
1042 AM MDT Sat Mar 21 2026

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING
FOR FIRE WEATHER ZONES 417, 418, 419, 430, 431, 432, 433, 434,
435, 436, AND 437...

* AFFECTED AREA...Fire weather zone 417, 418, 419, 430, 431, 
  432, 433, 434, 435, 436, and 437. 

* WIND...Sustained winds 15 to 25 mph, gusting up to 35 mph.

* HUMIDITY...5 to 10 percent.

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

* ADDITIONAL DETAILS...Poor overnight humidity recoveries are 
  expected early Saturday morning. Well above average 
  temperatures are also expected which will contribute 
  considerably to the dry conditions.

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.

&&

$$

WYZ420>423-425-427>429-220200-
/O.CON.KCYS.FW.W.0009.000000T0000Z-260322T0200Z/
North Laramie Valley/Shirley Basin-
Ferris/Seminoe/Shirley Mountains-Central and West Carbon-
Southwest Carbon County-Upper North Platte River Basin-
North Snowy Range Foothills-Southern Laramie Valley-
Southern Laramie Range-
1042 AM MDT Sat Mar 21 2026

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING
FOR FIRE WEATHER ZONES 420, 421, 422, 423, 425, 427, 428, AND
429...

* AFFECTED AREA...Fire weather zone 420, 421, 422, 423, 425, 
  427,428 and 429. 

* WIND...Sustained winds 20 to 30 mph, gusting up to 40 mph.

* HUMIDITY...8 to 11 percent.

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

* ADDITIONAL DETAILS...Poor overnight humidity recoveries are 
  expected early Saturday morning. Well above average 
  temperatures are also expected which will contribute 
  considerably to the dry conditions.

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.

&&

$$

475 
WWUS85 KCYS 220137
RFWCYS

URGENT - FIRE WEATHER MESSAGE
National Weather Service Cheyenne WY
737 PM MDT Sat Mar 21 2026


NEZ434>437-WYZ417>419-430>433-220245-
/O.EXP.KCYS.FW.W.0009.000000T0000Z-260322T0200Z/
Pine Ridge/Nebraska National Forest-
Box Butte/South Sioux/Niobrara River-
Lower North Platte River Basin/Scottsbluff National Monument-
Lodgepole Creek/Southern Nebraska Panhandle-
Niobrara/Lower Elevations of Converse/Thunder Basin National
Grassland-
Middle North Platte River Basin/Niobrara and Converse High Plains-
North Laramie Range and Adjacent High Plains-
Laramie Foothills and High Plains-Laramie East High Plains-
Bordeaux/Chugwater/Wheatland-Goshen/Middle-
Lower North Platte River Basin-
737 PM MDT Sat Mar 21 2026

...RED FLAG WARNING WILL EXPIRE AT 8 PM MDT THIS EVENING FOR FIRE
WEATHER ZONES 417, 418, 419, 430, 431, 432, 433, 434, 435, 436,
AND 437...

Relative humidites continue to increase this evening along with 
winds decreasing. Therefore, the Red Flag Warnings will be 
allowed to expire.

$$

WYZ420>423-425-427>429-220245-
/O.EXP.KCYS.FW.W.0009.000000T0000Z-260322T0200Z/
North Laramie Valley/Shirley Basin-
Ferris/Seminoe/Shirley Mountains-Central and West Carbon-
Southwest Carbon County-Upper North Platte River Basin-
North Snowy Range Foothills-Southern Laramie Valley-
Southern Laramie Range-
737 PM MDT Sat Mar 21 2026

...RED FLAG WARNING WILL EXPIRE AT 8 PM MDT THIS EVENING FOR FIRE
WEATHER ZONES 420, 421, 422, 423, 425, 427, 428, AND 429...

Relative humidites continue to increase this evening along with 
winds decreasing. Therefore, the Red Flag Warnings will be 
allowed to expire.

$$

Area Forecast Discussion
National Weather Service Cheyenne WY
507 AM MDT Tue Mar 17 2026

.KEY MESSAGES...

- High Wind Warnings are in effect for the usual wind prone
  areas of southeast Wyoming today through Tuesday evening.
  Central Laramie County and the Laramie Valley are also in a
  High Wind Warning Tuesday.

- Dangerous fire conditions expected Tuesday afternoon with low
  humidity and very strong winds.

- A Fire Weather Watch is in effect for all areas along and
  east of the Laramie Range Wednesday morning through Saturday
  evening.

- Record breaking warm temperatures are expected across the
  entire area during the second half of the week.

&&

.SHORT TERM /THROUGH WEDNESDAY NIGHT/...
Issued at 1234 AM MDT Tue Mar 17 2026

Tuesday will be the most "active" day through the week, with high
winds expected in the wind prone areas as well as the Laramie Valley
and Central Laramie County. The upper-level ridge over the far
southwestern CONUS will continue to build throughout the day,
leading to warming temperatures across the CWA and drying
conditions. Northwesterly 700mb flow will continue today, with
height gradients elevated across the Laramie Range due to a subtle
shortwave trough moving through. Surface pressure gradients will be
elevated as well, leading to favorable conditions for very gusty
winds across the region. With Craig to Casper gradients in the 60s
and 70s, high winds are expected to continue near Arlington and Elk
Mountain through midnight tonight when 700mb flow starts to subside
as the ridge moves closer to the region. In-house random forest
guidance suggests 80% probability of high winds at Arlington, 65% at
Bordeaux, 75% near the I-80 Summit, and about 25% for Cheyenne and
Laramie. Therefore, the High Wind Warning will continue for these
locations through the afternoon and evening hours. Temperatures will
start the strong warming trend this afternoon, with highs expected
to be in the upper-50s to mid-70s as 700mb temperatures warm into
the 3 to 5C range. With very warm temperatures and continued
downslope flow, fire danger is increasing for this afternoon through
the rest of the week. The Red Flag Warning remains in effect and has
been expanded northward for this afternoon as afternoon humidities
are expected to be lower than anticipated.

Wednesday onwards will be dominated by the upper-level ridge
meandering very slowly to the east. The apex of the ridge is
expected to only be over Arizona by Saturday, leading to a very warm
week in store. Temperatures will continue to warm across the area
with very dry conditions anticipated. Fire Weather Watches have been
hoisted for many locations and will likely be upgraded after
Tuesday's Red Flag Warning expires. Overall, expect temperatures in
the 60s to 80s through the week with mostly clear skies.

&&

.LONG TERM /THURSDAY THROUGH MONDAY/...
Issued at 1234 AM MDT Tue Mar 17 2026

No major change. Record temperatures and critical fire conditions
expected through the week. Please see previous discussion for more
details...

Wednesday, The high winds will be dieing down over the course of the
morning but it will still be pretty windy throughout the day. The
Upper level ridge will be pushing through the Intermountain West.
This ridge will be responsible for killing our high wind chances for
the rest of the week as it redirects the jetstream and the 700mb jet
northward. However, this ridge is pretty stout and will advect warm
dry air from the desert southwest into the Intermountain West. This
advection of dry air will cause our dewpoints to dive into the teens
while the Surface temperatures climb into the 70's and 80's. This
will cause the RH values to plummet as well since the amount of
available moisture will be depleted. The dry environment coupled
with some breezy winds will cripple the agricultural sector as Fire
weather consumes our region. A multi-day Fire weather watch has been
issued for all areas east of the I-25 corridor to include towns in
the corridor like Cheyenne, Chugwater, and Wheatland. This will
likely be upgraded in the near future for a multi-day Red Flag
Warning. This weekend another system could impact the Intermountain
West but, each global model hasn't come to an agreement as to
whether or not this system will be strong enough to flatten our
ridge or if the ridge will be immovable and the upper level low will
just move up and other our ridge. If the ridge flattens then we
could see some precipitation possibly reach the ground but, if it
doesn't move then we will remain dry and arid.

&&

.AVIATION /12Z TAFS THROUGH 12Z WEDNESDAY/...
Issued at 506 AM MDT Tue Mar 17 2026

Another breezy day is expected across all terminals, with the
strongest winds expected at KCYS and KLAR, where gusts in excess
of 50kts will be possible. Winds remain largely westerly
throughout the day with lower cloud decks eroding through the
morning hours. VFR conditions expected for the TAF period, with
mostly clear skies returning this afternoon.

&&

.CYS WATCHES/WARNINGS/ADVISORIES...
WY...Fire Weather Watch from Wednesday morning through Saturday
     evening for WYZ417>419-430>433.
     Red Flag Warning from 10 AM this morning to 8 PM MDT this
     evening for WYZ430>433.
     High Wind Warning until 6 PM MDT this evening for WYZ106.
     High Wind Warning until midnight MDT tonight for WYZ110-116-
     117.
     High Wind Warning until 6 PM MDT this evening for WYZ115-118.
NE...Fire Weather Watch from Wednesday morning through Saturday
     evening for NEZ434>437.
     Red Flag Warning from 10 AM this morning to 8 PM MDT this
     evening for NEZ436-437.

&&

SHORT TERM...AM
LONG TERM...MM/AM
AVIATION...AM

Hazardous Weather Outlook
National Weather Service Cheyenne WY
322 AM MDT Tue Mar 17 2026

NEZ002-003-019>021-054-055-095-096-WYZ101>119-180930-
Dawes County-Box Butte County-Scotts Bluff County-Banner County-
Morrill County-Kimball County-Cheyenne County-
Northern Sioux County-Southern Sioux County-
Converse County Lower Elevations-Niobrara County-
North Laramie Range-Ferris/Seminoe/Shirley Mountains-
Shirley Basin-Central Laramie Range and Southwest Platte County-
East Platte County-Goshen County-Central Carbon County-
North Snowy Range Foothills-Southwest Carbon County-
Sierra Madre Range-Upper North Platte River Basin-Snowy Range-
Laramie Valley-South Laramie Range-South Laramie Range Foothills-
Central Laramie County-East Laramie County-
322 AM MDT Tue Mar 17 2026

This hazardous weather outlook is for portions of panhandle
Nebraska...east central Wyoming...south central Wyoming and
southeast Wyoming.

.DAY ONE...TODAY AND TONIGHT

Dangerous fire conditions expected Tuesday afternoon with low humidity
and very strong winds.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

Record breaking warm temperatures are expected across the entire
area. Fire Weather Watch is in effect for all areas along and
east of the Laramie Range Wednesday morning through Saturday
evening.

.Spotter information statement...

Spotter activation will not be needed.

Preliminary Local Storm Report
National Weather Service Cheyenne WY
603 AM MDT Tue Mar 17 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0502 AM     Non-Tstm Wnd Gst 7 ESE Arlington         41.55N 106.09W
03/17/2026  M67 MPH          Carbon             WY   Mesonet

            Mesonet station WY24 6.9 E Arlington
            (WYDOT).

0502 AM     Non-Tstm Wnd Gst 3 NW Arlington          41.62N 106.24W
03/17/2026  M62 MPH          Carbon             WY   Mesonet

            Mesonet station WY22 2.7 NW Arlington
            (WYDOT).

0516 AM     Non-Tstm Wnd Gst 2 E Arlington           41.59N 106.18W
03/17/2026  M69 MPH          Carbon             WY   Mesonet

            Mesonet station WY23 1.6 E Arlington
            (WYDOT).

0522 AM     Non-Tstm Wnd Gst 1 NNW Arlington         41.60N 106.21W
03/17/2026  M59 MPH          Carbon             WY   Mesonet

            Mesonet station KARL 0.6 NW Arlington
            (WYDOT).

0525 AM     Non-Tstm Wnd Gst 3 NE Pumpkin Vine       41.08N 105.42W
03/17/2026  M62 MPH          Albany             WY   Mesonet

            Mesonet station UR351 3.1 NE Pumpkin Vine
            (UPR).

0526 AM     Non-Tstm Wnd Gst Vedauwoo                41.16N 105.40W
03/17/2026  M62 MPH          Albany             WY   Mesonet

            Mesonet station KVDW Vedauwoo (WYDOT).

0542 AM     Non-Tstm Wnd Gst 1 SSE Bordeaux          41.93N 104.94W
03/17/2026  M61 MPH          Platte             WY   Mesonet

            Mesonet station KBRX 1.4 S Bordeaux (WYDOT).

0546 AM     Non-Tstm Wnd Gst 5 E Buford              41.10N 105.21W
03/17/2026  M65 MPH          Laramie            WY   Mesonet

            Mesonet station WY29 4.8 E Buford (WYDOT).

0552 AM     Non-Tstm Wnd Gst 7 SW Federal            41.19N 105.20W
03/17/2026  M64 MPH          Laramie            WY   Mesonet

            Mesonet station WY48 7.4 SW Federal (WYDOT).

0552 AM     Non-Tstm Wnd Gst 8 S Chugwater           41.65N 104.85W
03/17/2026  M61 MPH          Laramie            WY   Mesonet

            Mesonet station WY40 7.5 S Chugwater
            (WYDOT).

&&

Preliminary Local Storm Report
National Weather Service Cheyenne WY
1122 AM MDT Tue Mar 17 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1056 AM     Non-Tstm Wnd Gst Pumpkin Vine            41.05N 105.47W
03/17/2026  M62 MPH          Albany             WY   Dept of Highways

            Mesonet station KPUM Pumpkin Vine (WYDOT).

1052 AM     Non-Tstm Wnd Gst 7 NW Elk Mountain       41.75N 106.51W
03/17/2026  M58 MPH          Carbon             WY   Dept of Highways

            Mesonet station WY18 Halleck Ridge (WYDOT).

1042 AM     Non-Tstm Wnd Gst 1 NNW Arlington         41.60N 106.21W
03/17/2026  M61 MPH          Carbon             WY   Dept of Highways

            Mesonet station KARL 0.6 NW Arlington
            (WYDOT).

1036 AM     Non-Tstm Wnd Gst 5 E Buford              41.10N 105.21W
03/17/2026  M58 MPH          Laramie            WY   Dept of Highways

            Mesonet station WY29 4.8 E Buford (WYDOT).

1036 AM     Non-Tstm Wnd Gst 2 E Arlington           41.59N 106.18W
03/17/2026  M59 MPH          Carbon             WY   Dept of Highways

            Mesonet station WY23 1.6 E Arlington
            (WYDOT).

1032 AM     Non-Tstm Wnd Gst Vedauwoo                41.16N 105.40W
03/17/2026  M68 MPH          Albany             WY   Dept of Highways

            Mesonet station KVDW Vedauwoo (WYDOT).

1026 AM     Non-Tstm Wnd Gst 7 SW Federal            41.19N 105.20W
03/17/2026  M58 MPH          Laramie            WY   Dept of Highways

            Mesonet station WY48 7.4 SW Federal (WYDOT).

1002 AM     Non-Tstm Wnd Gst 1 NNW Whitaker          41.42N 104.88W
03/17/2026  M58 MPH          Laramie            WY   Dept of Highways

            Mesonet station KWTR 0.6 NW Whitaker
            (WYDOT).

0942 AM     Non-Tstm Wnd Gst Vedauwoo                41.16N 105.40W
03/17/2026  M66 MPH          Albany             WY   Dept of Highways

            Mesonet station KVDW Vedauwoo (WYDOT).

0922 AM     Non-Tstm Wnd Gst 7 ESE Arlington         41.55N 106.09W
03/17/2026  M65 MPH          Carbon             WY   Dept of Highways

            Mesonet station WY24 6.9 E Arlington
            (WYDOT).

0906 AM     Non-Tstm Wnd Gst 5 NW Arlington          41.64N 106.29W
03/17/2026  M59 MPH          Carbon             WY   Dept of Highways

            Mesonet station WY21 5.5 NW Arlington
            (WYDOT).

0906 AM     Non-Tstm Wnd Gst Pumpkin Vine            41.05N 105.47W
03/17/2026  M58 MPH          Albany             WY   Dept of Highways

            Mesonet station KPUM Pumpkin Vine (WYDOT).

0802 AM     Non-Tstm Wnd Gst 8 S Chugwater           41.65N 104.85W
03/17/2026  M62 MPH          Laramie            WY   Dept of Highways

            Mesonet station WY40 7.5 S Chugwater
            (WYDOT).

0732 AM     Non-Tstm Wnd Gst 7 WSW Warren Af Base    41.11N 104.97W
03/17/2026  M60 MPH          Laramie            WY   Dept of Highways

            Mesonet station WY39 6.7 W Warren Af Base
            (WYDOT).

0722 AM     Non-Tstm Wnd Gst 5 E Buford              41.10N 105.21W
03/17/2026  M60 MPH          Laramie            WY   Dept of Highways

            Mesonet station WY29 4.8 E Buford (WYDOT).

0706 AM     Non-Tstm Wnd Gst 7 SW Federal            41.19N 105.20W
03/17/2026  M58 MPH          Laramie            WY   Mesonet

            Mesonet station WY48 7.4 SW Federal (WYDOT).

0658 AM     Non-Tstm Wnd Gst 11 WSW Warren Af Base   41.08N 105.04W
03/17/2026  M65 MPH          Laramie            WY   Mesonet

            Mesonet station UP226 10.5 NW Natural Fort
            (UPR).

0656 AM     Non-Tstm Wnd Gst 12 WSW Warren Af Base   41.10N 105.07W
03/17/2026  M59 MPH          Laramie            WY   Dept of Highways

            Mesonet station WY38 11.8 S Federal (WYDOT).

0642 AM     Non-Tstm Wnd Gst 5 E Buford              41.10N 105.21W
03/17/2026  M65 MPH          Laramie            WY   Dept of Highways

            Mesonet station WY29 4.8 E Buford (WYDOT).

0626 AM     Non-Tstm Wnd Gst 1 SSE Bordeaux          41.93N 104.94W
03/17/2026  M58 MPH          Platte             WY   Dept of Highways

            Mesonet station KBRX 1.4 S Bordeaux (WYDOT).

0622 AM     Non-Tstm Wnd Gst 8 S Chugwater           41.65N 104.85W
03/17/2026  M66 MPH          Laramie            WY   Dept of Highways

            Mesonet station WY40 7.5 S Chugwater
            (WYDOT).

0622 AM     Non-Tstm Wnd Gst 7 ESE Arlington         41.55N 106.09W
03/17/2026  M64 MPH          Carbon             WY   Dept of Highways

            Mesonet station WY24 6.9 E Arlington
            (WYDOT).

&&