368
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 IN EFFECT 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
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