305
WWUS45 KBYZ 122159
WSWBYZ
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BILLINGS MT
259 PM MST FRI DEC 12 2025
MTZ057-058-138-122300-
/O.CAN.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
259 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.
MTZ063-122300-
/O.CAN.KBYZ.WS.W.0019.000000T0000Z-251213T0600Z/
JUDITH GAP-
259 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.
MTZ029-173-130600-
/O.CON.KBYZ.WS.W.0019.000000T0000Z-251213T0600Z/
MUSSELSHELL-NORTHEASTERN YELLOWSTONE-
INCLUDING THE LOCATIONS OF ROUNDUP, MUSSELSHELL, MELSTONE, CUSTER,
AND POMPEYS PILLAR
259 PM MST FRI DEC 12 2025
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 11 PM MST THIS
EVENING...
* WHAT...SNOW OCCURRING. ADDITIONAL SNOW ACCUMULATIONS UP TO ONE
INCH.
* WHERE...MUSSELSHELL AND NORTHEASTERN YELLOWSTONE.
* WHEN...UNTIL 11 PM MST THIS EVENING.
* IMPACTS...PLAN ON SLIPPERY ROAD CONDITIONS. THE HAZARDOUS
CONDITIONS WILL IMPACT THE FRIDAY EVENING COMMUTE.
* 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
259 PM MST FRI DEC 12 2025
..WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 AM MST SATURDAY
* WHAT...HEAVY SNOW OCCURRING. ADDITIONAL SNOW ACCUMULATIONS BETWEEN
2 AND 5 INCHES.
* WHERE...TREASURE, CUSTER, AND NORTHERN ROSEBUD.
* WHEN...UNTIL 8 AM MST SATURDAY.
* IMPACTS...PLAN ON SLIPPERY ROAD CONDITIONS. THE HAZARDOUS
CONDITIONS WILL IMPACT THE EVENING COMMUTE.
* 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 PLEVNA, ALZADA, BAKER, BIDDLE, EKALAKA,
SONNETTE, POWDERVILLE, HAMMOND, WEBSTER, BROADUS, AND BELLTOWER
259 PM MST FRI DEC 12 2025
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM MST
SATURDAY...
* WHAT...SNOW OCCURRING. ADDITIONAL SNOW ACCUMULATIONS BETWEEN 2 AND
5 INCHES.
* WHERE...CARTER, FALLON, AND POWDER RIVER.
* WHEN...UNTIL 8 AM MST SATURDAY.
* IMPACTS...PLAN ON SLIPPERY ROAD CONDITIONS. THE HAZARDOUS
CONDITIONS WILL IMPACT THE FRIDAY EVENING COMMUTE.
* 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
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