142
WWUS45 KBYZ 130746
WSWBYZ
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BILLINGS MT
146 AM MDT FRI MAR 13 2026
MTZ029-034-042-063-141-172-173-228-235-140800-
/O.CON.KBYZ.WS.W.0004.000000T0000Z-260315T1200Z/
MUSSELSHELL-NORTHERN STILLWATER-GOLDEN VALLEY-JUDITH GAP-NORTHERN
SWEET GRASS-MELVILLE FOOTHILLS-NORTHEASTERN YELLOWSTONE-SOUTHERN
WHEATLAND-SOUTHWESTERN YELLOWSTONE-
INCLUDING THE LOCATIONS OF BROADVIEW, MELSTONE, BILLINGS, JUDITH GAP,
RYEGATE, LAVINA, REED POINT, PARK CITY, BIG TIMBER, HARLOWTON,
MELVILLE, SHAWMUT, ROUNDUP, RAPELJE, TWODOT, ABSAROKEE, MUSSELSHELL,
HUNTLEY, CUSTER, LAUREL, COLUMBUS, AND POMPEYS PILLAR
146 AM MDT FRI MAR 13 2026
..WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT SUNDAY
* WHAT...PERIODS OF SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS BETWEEN 7
AND 14 INCHES, GREATEST OVER THE HIGHER HILLS. LOCALLY HIGHER
TOTALS ARE POSSIBLE.
* WHERE...PORTIONS OF CENTRAL AND SOUTH CENTRAL MONTANA.
* WHEN...UNTIL 6 AM MDT SUNDAY.
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT AT TIMES. THE HAZARDOUS
CONDITIONS WILL IMPACT THE FRIDAY COMMUTES. COLD AND WET CONDITIONS
WILL BE DANGEROUS FOR YOUNG LIVESTOCK.
* ADDITIONAL DETAILS...ROADS ARE EXPECTED TO BE SLUSHY IN MOST AREAS
THROUGH THE DAY FRIDAY. HEAVIER SNOW IS EXPECTED FRIDAY NIGHT
THROUGH SATURDAY EVENING WITH ROADS CONDITIONS DETERIORATING
FURTHER AT THAT TIME.
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.
MTZ030-057-138-140800-
/O.CON.KBYZ.WS.W.0004.000000T0000Z-260315T1200Z/
TREASURE-NORTHERN BIG HORN-SOUTHERN BIG HORN-
INCLUDING THE LOCATIONS OF HARDIN, BUSBY, LODGE GRASS, PRYOR, WYOLA,
CROW AGENCY, HYSHAM, AND BIGHORN
146 AM MDT FRI MAR 13 2026
..WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT SUNDAY
* WHAT...PERIODS OF HEAVY SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS
BETWEEN 7 AND 14 INCHES, GREATEST OVER THE HIGHER HILLS.
* WHERE...NORTHERN BIG HORN, SOUTHERN BIG HORN, AND TREASURE.
* WHEN...UNTIL 6 AM MDT SUNDAY.
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT AT TIMES. THE HAZARDOUS
CONDITIONS WILL IMPACT THE FRIDAY COMMUTES. COLD AND WET CONDITIONS
WILL BE DANGEROUS FOR YOUNG LIVESTOCK.
* ADDITIONAL DETAILS...ROADS ARE EXPECTED TO BE SLUSHY IN MOST AREAS
THROUGH THE DAY FRIDAY. HEAVIER SNOW IS EXPECTED FRIDAY NIGHT
THROUGH SATURDAY EVENING WITH ROADS CONDITIONS DETERIORATING
FURTHER AT THAT TIME.
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.
MTZ036-058-140800-
/O.CON.KBYZ.WS.W.0004.000000T0000Z-260315T1200Z/
POWDER RIVER-SOUTHERN ROSEBUD-
INCLUDING THE LOCATIONS OF SONNETTE, BIRNEY, BIDDLE, LAME DEER,
POWDERVILLE, ASHLAND, AND BROADUS
146 AM MDT FRI MAR 13 2026
..WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT SUNDAY
* WHAT...PERIODS OF SNOW. HEAVIEST SNOWFALL IS EXPECTED FRIDAY NIGHT.
TOTAL SNOW ACCUMULATIONS BETWEEN 5 AND 10 INCHES.
* WHERE...POWDER RIVER AND SOUTHERN ROSEBUD.
* WHEN...UNTIL 6 AM MDT SUNDAY.
* IMPACTS...ROADS, AND ESPECIALLY BRIDGES AND OVERPASSES, WILL LIKELY
BECOME SLICK AND HAZARDOUS. TRAVEL COULD BECOME DIFFICULT AT TIMES,
ESPECIALLY OVER THE LAME DEER DIVIDE VICINITY. COLD AND WET
CONDITIONS WILL BE DANGEROUS FOR YOUNG LIVESTOCK.
* ADDITIONAL DETAILS...ROADS ARE EXPECTED TO BE SLUSHY IN MOST AREAS
DURING THE DAY FRIDAY. HEAVIER SNOW IS EXPECTED FRIDAY NIGHT
THROUGH SATURDAY EVENING WITH ROADS CONDITIONS DETERIORATING
FURTHER AT THAT TIME.
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.
MTZ067-140800-
/O.CON.KBYZ.WS.W.0004.000000T0000Z-260315T1200Z/
ABSAROKA/BEARTOOTH MOUNTAINS-
INCLUDING THE LOCATIONS OF COOKE CITY
146 AM MDT FRI MAR 13 2026
..WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT SUNDAY
* WHAT...PROLONGED PERIODS OF HEAVY SNOW EXPECTED. TOTAL SNOW
ACCUMULATIONS BETWEEN 1 AND 4 FEET, GREATEST ON SOUTH AND WEST
FACING ASPECTS. LOCALLY HIGHER TOTALS ARE POSSIBLE.
* WHERE...ABSAROKA/BEARTOOTH MOUNTAINS.
* WHEN...UNTIL 6 AM MDT SUNDAY.
* IMPACTS...RECREATION IN THE HIGH COUNTRY WILL BE SEVERELY IMPACTED
BY HEAVY ACCUMULATING AND BLOWING SNOW. WIDESPREAD BLOWING SNOW
COULD SIGNIFICANTLY REDUCE VISIBILITY. AVALANCHE DANGER IS EXPECTED
TO INCREASE OVER THE NEXT FEW DAYS.
* ADDITIONAL DETAILS...SNOW MAY NOT BEGIN FALLING ON THE NORTH
ASPECTS UNTIL FRIDAY.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DO NOT GET CAUGHT UNPREPARED IN THE HIGH COUNTRY. SEVERE WINTER
CONDITIONS ARE EXPECTED.
MTZ068-140800-
/O.CON.KBYZ.WS.W.0004.000000T0000Z-260315T1200Z/
CRAZY MOUNTAINS-
146 AM MDT FRI MAR 13 2026
..WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT SUNDAY
* WHAT...PROLONGED PERIODS OF HEAVY SNOW EXPECTED. TOTAL SNOW
ACCUMULATIONS BETWEEN 1 AND 4 FEET, WITH LOCALLY HIGHER TOTALS
POSSIBLE.
* WHERE...CRAZY MOUNTAINS.
* WHEN...UNTIL 6 AM MDT SUNDAY.
* IMPACTS...RECREATION IN THE HIGH COUNTRY WILL BE IMPACTED BY HEAVY
ACCUMULATING SNOW. AVALANCHE DANGER WILL INCREASE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DO NOT GET CAUGHT UNPREPARED IN THE HIGH COUNTRY. SEVERE WINTER
CONDITIONS ARE EXPECTED.
MTZ171-WYZ198-140800-
/O.CON.KBYZ.WS.W.0004.000000T0000Z-260315T1200Z/
PRYOR/NORTHERN BIGHORN MOUNTAINS-NORTHEAST BIGHORN MOUNTAINS-
INCLUDING THE LOCATIONS OF STORY AND BURGESS JCT
146 AM MDT FRI MAR 13 2026
..WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT SUNDAY
* WHAT...PROLONGED PERIODS OF SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS
BETWEEN 1 AND 2 FEET EXPECTED.
* WHERE...IN MONTANA, PRYOR/NORTHERN BIGHORN MOUNTAINS. IN WYOMING,
NORTHEAST BIGHORN MOUNTAINS.
* WHEN...UNTIL 6 AM MDT SUNDAY.
* IMPACTS...RECREATION IN THE HIGH COUNTRY COULD BE SEVERELY IMPACTED
BY HEAVY ACCUMULATING SNOW. TRAVEL COULD BE VERY DIFFICULT,
INCLUDING ALONG US-14 THROUGH BURGESS JUNCTION. BLOWING SNOW COULD
SIGNIFICANTLY REDUCE 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. RECREATION IN THE HIGH COUNTRY WILL BE IMPACTED BY HEAVY
ACCUMULATING SNOW.
MTZ031-140800-
/O.CON.KBYZ.WS.W.0004.260313T0900Z-260315T1200Z/
NORTHERN ROSEBUD-
INCLUDING THE LOCATIONS OF INGOMAR, COLSTRIP, ANGELA, AND FORSYTH
146 AM MDT FRI MAR 13 2026
..WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT SUNDAY
* WHAT...PERIODS OF SNOWFALL EXPECTED. HEAVIEST SNOWFALL IS EXPECTED
FRIDAY NIGHT THROUGH SATURDAY NIGHT. TOTAL SNOW ACCUMULATIONS
BETWEEN 6 TO 10 INCHES.
* WHERE...NORTHERN ROSEBUD.
* WHEN...UNTIL 6 AM MDT SUNDAY.
* IMPACTS...ROADS, AND ESPECIALLY BRIDGES AND OVERPASSES, WILL LIKELY
BECOME SLICK AND HAZARDOUS. TRAVEL COULD BE DIFFICULT.
* ADDITIONAL DETAILS...AREAS OF SNOW ARE EXPECTED TO DEVELOP TONIGHT,
BUT REMAIN RELATIVELY LIGHT THROUGH FRIDAY, WITH MAINLY SLUSHY
ROADS DURING THE DAY FRIDAY. SNOWFALL INTENSITY WILL PICK UP FRIDAY
NIGHT THROUGH SATURDAY NIGHT WITH HAZARDOUS ROAD CONDITIONS
DEVELOPING.
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.
WYZ199-131800-
/O.CON.KBYZ.WW.Y.0011.000000T0000Z-260313T1800Z/
SHERIDAN FOOTHILLS-
INCLUDING THE LOCATIONS OF RANCHESTER, SHERIDAN, CLEARMONT, DAYTON,
AND BIG HORN
146 AM MDT FRI MAR 13 2026
..WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT TODAY
* WHAT...SNOW OCCURRING. ADDITIONAL SNOW ACCUMULATIONS BETWEEN 1 AND
5 INCHES, WITH HIGHEST ACCUMULATIONS ON THE HIGHER HILLS.
* WHERE...SHERIDAN FOOTHILLS.
* WHEN...UNTIL NOON MDT TODAY.
* IMPACTS...PLAN ON SLIPPERY ROAD CONDITIONS WITH REDUCED VISIBILITY
DOWN TO A MILE AT TIMES. THE HAZARDOUS CONDITIONS WILL IMPACT THE
FRIDAY MORNING COMMUTE.
* ADDITIONAL DETAILS...AFTER SNOWFALL THROUGH THE MORNING, A BREAK IN
PRECIPITATION WILL LIKELY OCCUR FRIDAY AFTERNOON, PICKING UP AGAIN
SATURDAY AFTERNOON AND EVENING.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SLOW DOWN AND USE CAUTION WHILE TRAVELING. FOR THE LATEST ROAD
CONDITIONS, CALL 5 1 1.
MTZ032-033-037-140800-
/O.EXB.KBYZ.WS.A.0002.260314T1200Z-260315T1800Z/
CUSTER-FALLON-CARTER-
INCLUDING THE LOCATIONS OF EKALAKA, VOLBORG, BAKER, MILES CITY,
HAMMOND, ISMAY, PLEVNA, BELLTOWER, WEBSTER, AND ALZADA
146 AM MDT FRI MAR 13 2026
...WINTER STORM WATCH IN EFFECT FROM SATURDAY MORNING THROUGH SUNDAY
MORNING...
* WHAT...HEAVY SNOW POSSIBLE. TOTAL SNOW ACCUMULATIONS BETWEEN 4 AND
8INCHES POSSIBLE.
* WHERE...CARTER, CUSTER, AND FALLON.
* WHEN...FROM SATURDAY MORNING THROUGH SUNDAY MORNING.
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT AT TIMES. THE COLD WET
CONDITIONS WILL BE DANGEROUS FOR YOUNG LIVESTOCK.
* ADDITIONAL DETAILS...THE HEAVIEST ACCUMULATIONS ARE EXPECTED OVER
THE HIGHER HILLS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MONITOR THE LATEST FORECASTS FOR UPDATES ON THIS SITUATION.
PERSONS SHOULD CONSIDER DELAYING ALL TRAVEL DURING THIS PERIOD. IF
TRAVEL IS ABSOLUTELY NECESSARY, DRIVE WITH EXTREME CAUTION. CONSIDER
TAKING A WINTER STORM KIT ALONG WITH YOU, INCLUDING SUCH ITEMS AS
TIRE CHAINS, BOOSTER CABLES, FLASHLIGHT, SHOVEL, BLANKETS AND EXTRA
CLOTHING. ALSO TAKE WATER, A FIRST AID KIT, AND ANYTHING ELSE THAT
WOULD HELP YOU SURVIVE IN CASE YOU BECOME STRANDED.
MTZ056-066-140800-
/O.CON.KBYZ.WS.A.0002.260313T2100Z-260315T1200Z/
RED LODGE FOOTHILLS-BEARTOOTH FOOTHILLS-
INCLUDING THE LOCATIONS OF ROSCOE, ROBERTS, RED LODGE, NYE, FISHTAIL,
AND MCLEOD
146 AM MDT FRI MAR 13 2026
...WINTER STORM WATCH REMAINS IN EFFECT FROM THIS AFTERNOON THROUGH
LATE SATURDAY NIGHT...
* WHAT...PERIODS OF SNOW POSSIBLE. THE HEAVIEST SNOWFALL IS NOT
EXPECTED UNTIL FRIDAY NIGHT INTO SATURDAY. TOTAL SNOW ACCUMULATIONS
BETWEEN 5 AND 9 INCHES POSSIBLE.
* WHERE...BEARTOOTH FOOTHILLS AND RED LODGE FOOTHILLS.
* WHEN...FROM THIS AFTERNOON THROUGH LATE SATURDAY NIGHT.
* IMPACTS...TRAVEL COULD BE DIFFICULT. THE HAZARDOUS CONDITIONS COULD
IMPACT THE FRIDAY EVENING COMMUTE.
* ADDITIONAL DETAILS...WEST WINDS MAY KEEP THE COLDER AIR AND
ACCUMULATING SNOWFALL OFF THE FOOTHILLS UNTIL LATE FRIDAY OR FRIDAY
NIGHT. BEST CHANCE OF ACCUMULATING SNOWFALL IS SATURDAY THROUGH
SATURDAY NIGHT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
MONITOR THE LATEST FORECASTS FOR UPDATES ON THIS SITUATION.
ADDITIONAL GRAPHICS FOR THIS HAZARD CAN BE FOUND AT
HTTP://WWW.WEATHER.GOV/BILLINGS
CHAMBERS
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