WWUS45 KBYZ 122355

WSWBYZ



URGENT - WINTER WEATHER MESSAGE

National Weather Service Billings MT

455 PM MST Fri Dec 12 2025



MTZ029-173-130100-

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

Musselshell-Northeastern Yellowstone-

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

and Pompeys Pillar

455 PM MST Fri Dec 12 2025



...WINTER STORM WARNING IS CANCELLED...



Heavy snow threat has ended with only light additional accumulations

expected this evening. Roads are slick and snow covered so continue

to use extra caution traveling tonight and allow extra time to get to

your destination safely.



$$



MTZ030>032-131500-

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

Treasure-Northern Rosebud-Custer-

Including the locations of Ismay, Angela, Colstrip, Hysham, Bighorn,

Volborg, Miles City, Ingomar, and Forsyth

455 PM MST Fri Dec 12 2025



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



* WHAT...Snow, heavy at times. Additional snow accumulations up to 3

  inches.



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



* WHEN...Until 8 AM MST Saturday.



* IMPACTS...Slick and snow covered roads will make travel difficult.

  Travel on rural roads may be impossible.



* ADDITIONAL DETAILS...The highest snowfall amounts are forecast for

  Custer County.



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 Webster, Ekalaka, Sonnette, Plevna,

Powderville, Baker, Alzada, Hammond, Biddle, Broadus, and Belltower

455 PM MST Fri Dec 12 2025



...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM MST

SATURDAY...



* WHAT...Snow occurring. Additional snow accumulations up to 3

  inches.



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



* WHEN...Until 8 AM MST Saturday.



* IMPACTS...Travel may be treacherous in spots, 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.

  Total 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



Chambers