174
WWUS45 KBYZ 012117
WSWBYZ
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BILLINGS MT
217 PM MST MON DEC 1 2025
MTZ036-037-057-058-138-022130-
/O.NEW.KBYZ.WW.Y.0038.251202T1200Z-251203T1200Z/
POWDER RIVER-CARTER-NORTHERN BIG HORN-SOUTHERN ROSEBUD-SOUTHERN
BIG HORN-
INCLUDING THE LOCATIONS OF BUSBY, HARDIN, BIRNEY, LODGE GRASS, CROW
AGENCY, BROADUS, LAME DEER, PRYOR, BELLTOWER, ALZADA, HAMMOND,
POWDERVILLE, ASHLAND, BIDDLE, SONNETTE, EKALAKA, AND WYOLA
217 PM MST MON DEC 1 2025
...WINTER WEATHER ADVISORY IN EFFECT FROM 5 AM TUESDAY TO 5 AM MST
WEDNESDAY...
* WHAT...PERIODS OF SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS UP TO 4
INCHES, GREATEST OVER THE HIGHER HILLS. LOCALLY HIGHER TOTALS IN
THE WOLF MOUNTAINS. WINDS GUSTING AS HIGH AS 30 MPH.
* WHERE...NORTHERN BIG HORN, SOUTHERN BIG HORN, CARTER, POWDER RIVER,
AND SOUTHERN ROSEBUD.
* WHEN...FROM 5 AM TUESDAY TO 5 AM MST WEDNESDAY.
* IMPACTS...PLAN ON SLIPPERY ROAD CONDITIONS. THE HAZARDOUS
CONDITIONS WILL IMPACT THE TUESDAY MORNING AND EVENING COMMUTES.
* ADDITIONAL DETAILS...WET OR SLUSHY SURFACES WILL LIKELY FREEZE
TUESDAY EVENING.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SLOW DOWN AND USE CAUTION WHILE TRAVELING. FOR THE LATEST ROAD
CONDITIONS, CALL 5 1 1.
MTZ171-022130-
/O.NEW.KBYZ.WW.Y.0038.251202T1800Z-251203T1200Z/
PRYOR/NORTHERN BIGHORN MOUNTAINS-
217 PM MST MON DEC 1 2025
...WINTER WEATHER ADVISORY IN EFFECT FROM 11 AM TUESDAY TO 5 AM MST
WEDNESDAY...
* WHAT...SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS BETWEEN 5 AND 9
INCHES. WINDS GUSTING AS HIGH AS 30 MPH.
* WHERE...PRYOR/NORTHERN BIGHORN MOUNTAINS.
* WHEN...FROM 11 AM TUESDAY TO 5 AM MST WEDNESDAY.
* IMPACTS...RECREATION IN THE HIGH COUNTRY WILL BE IMPACTED BY
ACCUMULATING SNOW AND BLOWING SNOW.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
PREPARE FOR WINTER WEATHER.
MTZ056-066-022130-
/O.NEW.KBYZ.WW.Y.0038.251203T0000Z-251203T1200Z/
RED LODGE FOOTHILLS-BEARTOOTH FOOTHILLS-
INCLUDING THE LOCATIONS OF RED LODGE, ROSCOE, MCLEOD, ROBERTS,
FISHTAIL, AND NYE
217 PM MST MON DEC 1 2025
...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM TUESDAY TO 5 AM MST
WEDNESDAY...
* WHAT...SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS OF 2 TO 5 INCHES,
WITH LOCALLY HIGHER TOTALS POSSIBLE.
* WHERE...BEARTOOTH FOOTHILLS AND RED LODGE FOOTHILLS.
* WHEN...FROM 5 PM TUESDAY TO 5 AM MST WEDNESDAY.
* IMPACTS...PLAN ON SLIPPERY ROAD CONDITIONS. THE HAZARDOUS
CONDITIONS WILL IMPACT THE TUESDAY EVENING COMMUTE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SLOW DOWN AND USE CAUTION WHILE TRAVELING. FOR THE LATEST ROAD
CONDITIONS, CALL 5 1 1.
MTZ169-WYZ199-022130-
/O.NEW.KBYZ.WW.Y.0038.251203T0000Z-251203T1200Z/
BIGHORN CANYON-SHERIDAN FOOTHILLS-
INCLUDING THE LOCATIONS OF CLEARMONT, FORT SMITH, BIG HORN, DAYTON,
RANCHESTER, AND SHERIDAN
217 PM MST MON DEC 1 2025
...WINTER WEATHER ADVISORY IN EFFECT FROM 5 PM TUESDAY TO 5 AM MST
WEDNESDAY...
* WHAT...SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS UP TO 3 INCHES,
GREATEST OVER THE HIGHER HILLS AND NEAR THE BIGHORN MOUNTAINS.
WINDS GUSTING AS HIGH AS 30 MPH.
* WHERE...IN MONTANA, BIGHORN CANYON. IN WYOMING, SHERIDAN FOOTHILLS.
* WHEN...FROM 5 PM TUESDAY TO 5 AM MST WEDNESDAY.
* IMPACTS...PLAN ON SLIPPERY ROAD CONDITIONS. THE HAZARDOUS
CONDITIONS WILL IMPACT THE TUESDAY EVENING COMMUTE.
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
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