WWUS45 KBYZ 122045

WSWBYZ



URGENT - WINTER WEATHER MESSAGE

National Weather Service Billings MT

145 PM MST Fri Dec 12 2025



MTZ034-068-141-172-235-122145-

/O.CAN.KBYZ.WS.W.0019.000000T0000Z-251213T0300Z/

Northern Stillwater-Crazy Mountains-Northern Sweet Grass-Melville

Foothills-Southwestern Yellowstone-

145 PM MST Fri Dec 12 2025



...WINTER STORM WARNING IS CANCELLED...



Snow has ended. Those recreating in the high country should remain

prepared for difficult conditions.



$$



MTZ042-228-122145-

/O.CAN.KBYZ.WS.W.0019.000000T0000Z-251213T0600Z/

Golden Valley-Southern Wheatland-

145 PM MST Fri Dec 12 2025



...WINTER STORM WARNING IS CANCELLED...



Snowfall has ended across the area. Those traveling should expect

difficult travel on roadways due to heavy snowfall. Additional light

snow showers are possible late tonight into Saturday morning.



$$



MTZ029-063-173-130600-

/O.CON.KBYZ.WS.W.0019.000000T0000Z-251213T0600Z/

Musselshell-Judith Gap-Northeastern Yellowstone-

Including the locations of Roundup, Musselshell, Melstone, Custer,

Pompeys Pillar, and Judith Gap

145 PM MST Fri Dec 12 2025



...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS

EVENING...



* WHAT...Moderate to heavy snow occurring. Additional snow

  accumulations up to two inches.



* WHERE...Judith Gap, Musselshell, and Northeastern Yellowstone.



* WHEN...Until 11 PM MST this evening.



* IMPACTS...Travel will be very difficult with slick and snow covered

  roads.



* ADDITIONAL DETAILS...Snow showers will gradually diminish through

  the afternoon with additional snow showers bringing light

  accumulations Saturday morning.



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.



&&



$$



MTZ030>032-131500-

/O.CON.KBYZ.WS.W.0019.000000T0000Z-251213T1500Z/

Treasure-Northern Rosebud-Custer-

Including the locations of Forsyth, Ingomar, Angela, Miles City,

Hysham, Volborg, Colstrip, Ismay, and Bighorn

145 PM MST Fri Dec 12 2025



...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 AM MST SATURDAY...



* WHAT...Moderate to heavy snow occurring. Additional snow

  accumulations between 3 and 5 inches.



* WHERE...Treasure, Custer, and Northern Rosebud.



* WHEN...Until 8 AM MST Saturday.



* IMPACTS...Travel conditions will remain difficult into Saturday due

  to heavy accumulating snow.



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.



&&



$$



MTZ057-058-138-130300-

/O.CON.KBYZ.WS.W.0019.000000T0000Z-251213T0300Z/

Northern Big Horn-Southern Rosebud-Southern Big Horn-

Including the locations of Busby, Lame Deer, Ashland, Hardin, Birney,

Wyola, Pryor, Crow Agency, and Lodge Grass

145 PM MST Fri Dec 12 2025



...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS

EVENING...



* WHAT...Snow occurring. Additional snow accumulations up to one

  inch.



* WHERE...Northern Big Horn, Southern Big Horn, and Southern Rosebud.



* WHEN...Until 8 PM MST this evening.



* IMPACTS...Travel will be very difficult with slick and snow covered

  roads, and areas of poor visibility.



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.



&&



$$



MTZ033-036-037-131500-

/O.CON.KBYZ.WW.Y.0041.000000T0000Z-251213T1500Z/

Fallon-Powder River-Carter-

Including the locations of Plevna, Alzada, Baker, Biddle, Ekalaka,

Sonnette, Powderville, Hammond, Webster, Broadus, and Belltower

145 PM MST Fri Dec 12 2025



...WINTER WEATHER ADVISORY REMAINS INEFFECT UNTIL 8 AM MST

SATURDAY...



* WHAT...Snow occurring. Additional snow accumulations up to 5

  inches.



* WHERE...Carter, Fallon, and Powder River.



* WHEN...Until 8 AM MST Saturday.



* IMPACTS...Travel may become treacherous and will remain difficult

  into Saturday due to accumulating snow.



* ADDITIONAL DETAILS...Lower snowfall totals will occur in Powder

  River and Carter Counties with higher amounts in Fallon County.

  Snowfall in parts of Fallon county may exceed 6 inches.



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



Matos