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Winter Weather Advisory 0039
Issued by the Billings Forecast Office

Action Issued Starts Expiration
New 2025-12-04 04:43:36 2025-12-04 18:00:00 2025-12-05 15:00:00
Continued 2025-12-04 13:57:26 2025-12-04 18:00:00 2025-12-05 15:00:00
Continued 2025-12-05 02:59:16 2025-12-05 15:00:00
Time and Area Extended 2025-12-05 10:23:17 2025-12-06 15:00:00
Time Extended 2025-12-05 10:23:17 2025-12-06 15:00:00
Continued 2025-12-05 15:29:23 2025-12-06 15:00:00
Continued 2025-12-06 02:50:41 2025-12-06 15:00:00
Time Extended 2025-12-06 14:47:22 2025-12-06 18:00:00


Action: New
Issued At: 2025-12-04 04:43:36

433 
WWUS45 KBYZ 041043
WSWBYZ

URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
343 AM MST Thu Dec 4 2025

MTZ067-068-051045-
/O.NEW.KBYZ.WS.W.0017.251204T2100Z-251206T2100Z/
Absaroka/Beartooth Mountains-Crazy Mountains-
Including the locations of Cooke City
343 AM MST Thu Dec 4 2025

...WINTER STORM WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO 2 PM
MST SATURDAY...

* WHAT...Periods of moderate to heavy snow expected. Total snow
  accumulations between 12 and 24 inches, greatest on west facing
  slopes where locally higher amounts are possible. Winds gusting as
  high as 45 mph.

* WHERE...Absaroka/Beartooth Mountains and Crazy Mountains.

* WHEN...From 2 PM this afternoon to 2 PM MST Saturday.

* IMPACTS...Recreation in the backcountry will be impacted by heavy
  accumulating snow and blowing snow.

* ADDITIONAL DETAILS...Snowfall amounts on the northeast facing
  slopes around Nye to Red Lodge are much less, around 3 to 6 inches.

A temporary break in the snowfall is expected Friday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Those in the backcountry should ensure they are prepared for
dangerous winter conditions.

&&

$$

MTZ171-051045-
/O.NEW.KBYZ.WW.Y.0039.251205T0000Z-251205T2100Z/
Pryor/Northern Bighorn Mountains-
343 AM MST Thu Dec 4 2025

...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM THIS AFTERNOON TO 2 PM
MST FRIDAY...

* WHAT...Snow expected. Total snow accumulations between 4 and 8
  inches, greatest on northwest facing slopes. Winds gusting as high
  as 30 mph.

* WHERE...Pryor/Northern Bighorn Mountains.

* WHEN...From 5 PM this afternoon to 2 PM MST Friday.

* IMPACTS...Recreation in the backcountry will be impacted by heavy
  accumulating snow and blowing snow.

* ADDITIONAL DETAILS...Those in the backcountry should ensure they
  are prepared for dangerous winter conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. For the latest road
conditions, call 5 1 1.

&&

$$

Additional graphics for this hazard can be found at
http://www.weather.gov/billings

Arends


Action: Continued
Issued At: 2025-12-04 13:57:26

223 
WWUS45 KBYZ 041956
WSWBYZ

URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
1256 PM MST Thu Dec 4 2025

MTZ067-068-052000-
/O.CON.KBYZ.WS.W.0017.251204T2100Z-251206T2100Z/
Absaroka/Beartooth Mountains-Crazy Mountains-
Including the locations of Cooke City
1256 PM MST Thu Dec 4 2025

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 2 PM MST SATURDAY...

* WHAT...Periods of moderate to heavy snow expected. Total snow
  accumulations between 12 and 24 inches, greatest on west facing
  slopes where locally higher amounts are possible. Winds gusting as
  high as 45 mph.

* WHERE...Absaroka/Beartooth Mountains and Crazy Mountains.

* WHEN...Until 2 PM MST Saturday.

* IMPACTS...Recreation in the backcountry will be impacted by heavy
  accumulating snow and blowing snow. Localized whiteout conditions
  are possible.

* ADDITIONAL DETAILS...Snowfall amounts on the northeast facing
  slopes around Nye to Red Lodge are much less, around 3 to 6 inches.

A temporary break in the snowfall is expected Friday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Those in the backcountry should ensure they are prepared for
dangerous winter conditions.

&&

$$

MTZ171-052000-
/O.CON.KBYZ.WW.Y.0039.251205T0000Z-251205T2100Z/
Pryor/Northern Bighorn Mountains-
1256 PM MST Thu Dec 4 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 PM THIS AFTERNOON
TO 2 PM MST FRIDAY...

* WHAT...Snow expected. Total snow accumulations between 4 and 8
  inches, greatest on northwest facing slopes. Winds gusting as high
  as 30 mph.

* WHERE...Pryor/Northern Bighorn Mountains.

* WHEN...From 5 PM this afternoon to 2 PM MST Friday.

* IMPACTS...Recreation in the backcountry will be impacted by heavy
  accumulating snow and blowing snow.

* ADDITIONAL DETAILS...Those in the backcountry should ensure they
  are prepared for dangerous winter conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. For the latest road
conditions, call 5 1 1.

&&

$$

Additional graphics for this hazard can be found at
http://www.weather.gov/billings

WMR/TC


Action: Continued
Issued At: 2025-12-05 02:59:16

128 
WWUS45 KBYZ 050859
WSWBYZ

URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
159 AM MST Fri Dec 5 2025

MTZ067-068-060900-
/O.CON.KBYZ.WS.W.0017.000000T0000Z-251206T2100Z/
Absaroka/Beartooth Mountains-Crazy Mountains-
Including the locations of Cooke City
159 AM MST Fri Dec 5 2025

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 2 PM MST SATURDAY...

* WHAT...Periods of moderate to heavy snowfall. Total snow
  accumulations between 12 and 24 inches, greatest on west facing
  slopes including the mountains around Cooke City. Mountain top
  winds gusting as high as 50 mph.

* WHERE...Absaroka/Beartooth Mountains and Crazy Mountains.

* WHEN...Until 2 PM MST Saturday.

* IMPACTS...Mountain recreation will be impacted by heavy
  accumulating snow and blowing snow.

* ADDITIONAL DETAILS...The mountains around Red Lodge will see much
  less snowfall, 1 to 5 inches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Those in the backcountry should ensure they are prepared for
dangerous winter conditions.

&&

$$

MTZ171-052100-
/O.CON.KBYZ.WW.Y.0039.000000T0000Z-251205T2100Z/
Pryor/Northern Bighorn Mountains-
159 AM MST Fri Dec 5 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 2 PM MST THIS
AFTERNOON...

* WHAT...Occasional snow. Total snow accumulations between 4 and 8
  inches, greatest on northwest aspects. Winds gusting as high as 35
  mph.

* WHERE...Pryor/Northern Bighorn Mountains.

* WHEN...Until 2 PM MST this afternoon.

* IMPACTS...Mountain recreation will be impacted by accumulating snow
  and areas of blowing snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Those in the backcountry should ensure they are prepared for wintry
conditions.

&&

$$

Additional graphics for this hazard can be found at
http://www.weather.gov/billings

Lester


Action: Time and Area Extended
Issued At: 2025-12-05 10:23:17

055 
WWUS45 KBYZ 051622
WSWBYZ

URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
922 AM MST Fri Dec 5 2025

MTZ067-068-061630-
/O.CON.KBYZ.WS.W.0017.000000T0000Z-251206T2100Z/
Absaroka/Beartooth Mountains-Crazy Mountains-
Including the locations of Cooke City
922 AM MST Fri Dec 5 2025

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 2 PM MST SATURDAY...

* WHAT...Periods of moderate to heavy snowfall, strong winds, and
  blowing snow. Additional snow accumulations between 6 and 14
  inches. Winds gusting as high as 65 mph.

* WHERE...Absaroka/Beartooth Mountains and Crazy Mountains.

* WHEN...Until 2 PM MST Saturday.

* IMPACTS...Mountain recreation will be impacted by heavy
  accumulating snow and blowing snow. Whiteout conditions are
  expected at times.

* ADDITIONAL DETAILS...The heaviest snowfall will occur on west and
  northwest facing slopes. The mountains around Red Lodge will see
  much less snowfall, 2 to 6 inches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in your
vehicle in case of an emergency. For the latest road conditions, call
5 1 1.

&&

$$

WYZ198-061630-
/O.EXB.KBYZ.WW.Y.0039.000000T0000Z-251206T2100Z/
Northeast Bighorn Mountains-
Including the locations of Burgess Jct and Story
922 AM MST Fri Dec 5 2025

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 2 PM MST SATURDAY...

* WHAT...Periods of light to moderate snow and blowing snow.
  Additional snow accumulations between 3 and 7 inches. Winds gusting
  as high as 45 mph.

* WHERE...Northeast Bighorn Mountains.

* WHEN...Until 2 PM MST Saturday.

* IMPACTS...The heaviest snowfall is expected late this evening
  through Saturday morning. Travel on US-14 and outdoor recreation
  could be very difficult. Whiteout conditions are expected at times
  due to snow and blowing snow.

* ADDITIONAL DETAILS...Those in the backcountry should ensure they
  are prepared for difficult winter conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. For the latest road
conditions, call 5 1 1.

&&

$$

MTZ171-061630-
/O.EXT.KBYZ.WW.Y.0039.000000T0000Z-251206T2100Z/
Pryor/Northern Bighorn Mountains-
922 AM MST Fri Dec 5 2025

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 2 PM MST SATURDAY...

* WHAT...Periods of light to moderate snow and blowing snow.
  Additional snow accumulations between 4 and 8 inches. Winds gusting
  as high as 45 mph.

* WHERE...Pryor/Northern Bighorn Mountains.

* WHEN...Until 2 PM MST Saturday.

* IMPACTS...The heaviest snowfall is expected late this evening
  through Saturday morning. Outdoor recreation could be very
  difficult. Whiteout conditions are expected at times due to snow
  and blowing snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Those recreating in the backcountry should ensure they are prepared
for difficult wintry conditions.

&&

$$

Additional graphics for this hazard can be found at
http://www.weather.gov/billings

Chambers


Action: Time Extended
Issued At: 2025-12-05 10:23:17

055 
WWUS45 KBYZ 051622
WSWBYZ

URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
922 AM MST Fri Dec 5 2025

MTZ067-068-061630-
/O.CON.KBYZ.WS.W.0017.000000T0000Z-251206T2100Z/
Absaroka/Beartooth Mountains-Crazy Mountains-
Including the locations of Cooke City
922 AM MST Fri Dec 5 2025

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 2 PM MST SATURDAY...

* WHAT...Periods of moderate to heavy snowfall, strong winds, and
  blowing snow. Additional snow accumulations between 6 and 14
  inches. Winds gusting as high as 65 mph.

* WHERE...Absaroka/Beartooth Mountains and Crazy Mountains.

* WHEN...Until 2 PM MST Saturday.

* IMPACTS...Mountain recreation will be impacted by heavy
  accumulating snow and blowing snow. Whiteout conditions are
  expected at times.

* ADDITIONAL DETAILS...The heaviest snowfall will occur on west and
  northwest facing slopes. The mountains around Red Lodge will see
  much less snowfall, 2 to 6 inches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in your
vehicle in case of an emergency. For the latest road conditions, call
5 1 1.

&&

$$

WYZ198-061630-
/O.EXB.KBYZ.WW.Y.0039.000000T0000Z-251206T2100Z/
Northeast Bighorn Mountains-
Including the locations of Burgess Jct and Story
922 AM MST Fri Dec 5 2025

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 2 PM MST SATURDAY...

* WHAT...Periods of light to moderate snow and blowing snow.
  Additional snow accumulations between 3 and 7 inches. Winds gusting
  as high as 45 mph.

* WHERE...Northeast Bighorn Mountains.

* WHEN...Until 2 PM MST Saturday.

* IMPACTS...The heaviest snowfall is expected late this evening
  through Saturday morning. Travel on US-14 and outdoor recreation
  could be very difficult. Whiteout conditions are expected at times
  due to snow and blowing snow.

* ADDITIONAL DETAILS...Those in the backcountry should ensure they
  are prepared for difficult winter conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. For the latest road
conditions, call 5 1 1.

&&

$$

MTZ171-061630-
/O.EXT.KBYZ.WW.Y.0039.000000T0000Z-251206T2100Z/
Pryor/Northern Bighorn Mountains-
922 AM MST Fri Dec 5 2025

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 2 PM MST SATURDAY...

* WHAT...Periods of light to moderate snow and blowing snow.
  Additional snow accumulations between 4 and 8 inches. Winds gusting
  as high as 45 mph.

* WHERE...Pryor/Northern Bighorn Mountains.

* WHEN...Until 2 PM MST Saturday.

* IMPACTS...The heaviest snowfall is expected late this evening
  through Saturday morning. Outdoor recreation could be very
  difficult. Whiteout conditions are expected at times due to snow
  and blowing snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Those recreating in the backcountry should ensure they are prepared
for difficult wintry conditions.

&&

$$

Additional graphics for this hazard can be found at
http://www.weather.gov/billings

Chambers


Action: Continued
Issued At: 2025-12-05 15:29:23

042 
WWUS45 KBYZ 052129
WSWBYZ

URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
229 PM MST Fri Dec 5 2025

MTZ067-068-062100-
/O.CON.KBYZ.WS.W.0017.000000T0000Z-251206T2100Z/
Absaroka/Beartooth Mountains-Crazy Mountains-
Including the locations of Cooke City
229 PM MST Fri Dec 5 2025

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 2 PM MST SATURDAY...

* WHAT...Periods of moderate to heavy snowfall, strong winds, and
  blowing snow. Additional snow accumulations between 6 and 14
  inches. Winds gusting as high as 75 mph.

* WHERE...Absaroka/Beartooth Mountains and Crazy Mountains.

* WHEN...Until 2 PM MST Saturday.

* IMPACTS...Mountain recreation will be impacted by heavy
  accumulating snow and blowing snow. Whiteout conditions are
  expected at times.

* ADDITIONAL DETAILS...The heaviest snowfall will occur on west and
  northwest facing slopes. The mountains around Red Lodge and Nye
  will see much less snowfall, 2 to 6 inches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Those in the backcountry should ensure they are prepared for
dangerous winter conditions.

&&

$$

MTZ171-WYZ198-062100-
/O.CON.KBYZ.WW.Y.0039.000000T0000Z-251206T2100Z/
Pryor/Northern Bighorn Mountains-Northeast Bighorn Mountains-
Including the locations of Burgess Jct and Story
229 PM MST Fri Dec 5 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 2 PM MST
SATURDAY...

* WHAT...Periods of light to moderate snow and blowing snow.
  Additional snow accumulations between 4 and 8 inches. Winds gusting
  as high as 45 mph.

* WHERE...In Montana, Pryor/Northern Bighorn Mountains. In Wyoming,
  Northeast Bighorn Mountains.

* WHEN...Until 2 PM MST Saturday.

* IMPACTS...The heaviest snowfall is expected late this evening
  through Saturday morning. Outdoor recreation could be very
  difficult. Whiteout conditions are expected at times due to snow
  and blowing snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Those recreating in the backcountry should ensure they are prepared
for difficult wintry conditions.

&&

$$

Additional graphics for this hazard can be found at
http://www.weather.gov/billings

Chambers


Action: Continued
Issued At: 2025-12-06 02:50:41

880 
WWUS45 KBYZ 060850
WSWBYZ

URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
150 AM MST Sat Dec 6 2025

MTZ067-068-070700-
/O.EXT.KBYZ.WS.W.0017.000000T0000Z-251207T0700Z/
Absaroka/Beartooth Mountains-Crazy Mountains-
Including the locations of Cooke City
150 AM MST Sat Dec 6 2025

...WINTER STORM WARNING NOW IN EFFECT UNTIL MIDNIGHT MST TONIGHT...

* WHAT...Periods of moderate to heavy snow, strong winds and blowing
  snow. Additional snow accumulations between 8 and 15 inches. Winds
  gusting as high as 60 mph on the mountain tops.

* WHERE...Absaroka/Beartooth Mountains and Crazy Mountains.

* WHEN...Until midnight MST tonight.

* IMPACTS...Mountain recreation will be impacted by heavy
  accumulating snow and blowing snow.

* ADDITIONAL DETAILS...The heaviest snowfall will occur on west and
  northwest facing slopes, including the mountains near Cooke City.
  The mountains around Red Lodge will see much less snowfall, 1 to 5
  inches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Those in the backcountry should ensure they are prepared for
dangerous winter conditions.

&&

$$

MTZ171-WYZ198-062100-
/O.CON.KBYZ.WW.Y.0039.000000T0000Z-251206T2100Z/
Pryor/Northern Bighorn Mountains-Northeast Bighorn Mountains-
Including the locations of Story and Burgess Jct
150 AM MST Sat Dec 6 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 2 PM MST THIS
AFTERNOON...

* WHAT...Occasional snow and blowing snow. Additional snow
  accumulations of 4 to 7 inches. Winds gusting as high as 40 mph.

* WHERE...In Montana, Pryor/Northern Bighorn Mountains. In Wyoming,
  Northeast Bighorn Mountains.

* WHEN...Until 2 PM MST this afternoon.

* IMPACTS...Outdoor recreation will be impacted by wintry conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Those recreating in the backcountry should ensure they are prepared
for difficult wintry conditions.

&&

$$

Additional graphics for this hazard can be found at
http://www.weather.gov/billings

Lester


Action: Time Extended
Issued At: 2025-12-06 14:47:22

540 
WWUS45 KBYZ 062046
WSWBYZ

URGENT - WINTER WEATHER MESSAGE
National Weather Service Billings MT
146 PM MST Sat Dec 6 2025

MTZ067-068-070700-
/O.CON.KBYZ.WS.W.0017.000000T0000Z-251207T0700Z/
Absaroka/Beartooth Mountains-Crazy Mountains-
Including the locations of Cooke City
146 PM MST Sat Dec 6 2025

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT MST
TONIGHT...

* WHAT...Heavy snow occurring. Additional snow accumulations of 3 to
  6 inches. Winds gusting as high as 50 mph in exposed areas.

* WHERE...Absaroka/Beartooth Mountains and Crazy Mountains.

* WHEN...Until midnight MST tonight.

* IMPACTS...Mountain recreation will be impacted by heavy
  accumulating snow and blowing snow.

* ADDITIONAL DETAILS...The heaviest snowfall will occur on west and
  northwest facing slopes, including the mountains near Cooke City.
  The mountains around Red Lodge will see much less additional
  snowfall, 0 to 3 inches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Those in the backcountry should ensure they are prepared for
dangerous winter conditions.

&&

$$

MTZ171-WYZ198-070000-
/O.EXT.KBYZ.WW.Y.0039.000000T0000Z-251207T0000Z/
Pryor/Northern Bighorn Mountains-Northeast Bighorn Mountains-
Including the locations of Burgess Jct and Story
146 PM MST Sat Dec 6 2025

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 5 PM MST THIS
AFTERNOON...

* WHAT...Snow occuring. Additional snow accumulations of 1 to 3
  inches.

* WHERE...In Montana, Pryor/Northern Bighorn Mountains. In Wyoming,
  Northeast Bighorn Mountains.

* WHEN...Until 5 PM MST this afternoon.

* IMPACTS...Outdoor recreation will be impacted by wintry conditions.

* ADDITIONAL DETAILS...Travel on highway 14 will be impacted by
  wintry conditions and slick roads.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. For the latest road
conditions, call 5 1 1.

&&

$$

Additional graphics for this hazard can be found at
http://www.weather.gov/billings

Torgerson



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