576
WWUS45 KBYZ 270251
WSWBYZ
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE BILLINGS MT
851 PM MDT SUN APR 26 2026
MTZ036-271800-
/O.EXA.KBYZ.WW.Y.0017.000000T0000Z-260427T1800Z/
POWDER RIVER-
INCLUDING THE LOCATIONS OF BIDDLE, POWDERVILLE, SONNETTE, AND BROADUS
851 PM MDT SUN APR 26 2026
..WINTER WEATHER ADVISORY IN EFFECT UNTIL NOON MDT MONDAY
* WHAT...SNOW EXPECTED. SNOW ACCUMULATIONS 1-3 INCHES, GREATEST OVER
HIGHER HILLS INCLUDING THE HOME CREEK DIVIDE.
* WHERE...POWDER RIVER.
* WHEN...UNTIL NOON MDT MONDAY.
* IMPACTS...PLAN ON SLUSHY AND SLICK ROADS WITH REDUCED VISIBILITY.
THIS INCLUDES US-212, ESPECIALLY OVER THE HOME CREEK DIVIDE AREA.
* ADDITIONAL DETAILS...WINTRY CONDITIONS MAY AFFECT THE MONDAY
MORNING COMMUTE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SLOW DOWN AND USE CAUTION WHILE TRAVELING. FOR THE LATEST ROAD
CONDITIONS, CALL 5 1 1.
MTZ030-031-271500-
/O.CON.KBYZ.WW.Y.0017.000000T0000Z-260427T1500Z/
TREASURE-NORTHERN ROSEBUD-
INCLUDING THE LOCATIONS OF BIGHORN, HYSHAM, INGOMAR, ANGELA, FORSYTH,
AND COLSTRIP
851 PM MDT SUN APR 26 2026
..WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 9 AM MDT MONDAY
* WHAT...SNOW OCCURRING. SNOW ACCUMULATIONS 1 TO 3 INCHES, GREATEST
OVER HIGHER HILLS. WINDS GUSTING AS HIGH AS 30 MPH.
* WHERE...TREASURE AND NORTHERN ROSEBUD.
* WHEN...UNTIL 9 AM MDT MONDAY.
* IMPACTS...PLAN ON SLICK OR SLUSHY ROAD CONDITIONS AND REDUCED
VISIBILITY. WINTRY CONDITIONS MAY AFFECT THE MONDAY MORNING
COMMUTE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SLOW DOWN AND USE CAUTION WHILE TRAVELING. FOR THE LATEST ROAD
CONDITIONS, CALL 5 1 1.
MTZ057-058-138-169-WYZ199-271800-
/O.CON.KBYZ.WW.Y.0017.000000T0000Z-260427T1800Z/
NORTHERN BIG HORN-SOUTHERN ROSEBUD-SOUTHERN BIG HORN-BIGHORN
CANYON-SHERIDAN FOOTHILLS-
INCLUDING THE LOCATIONS OF CLEARMONT, ASHLAND, PRYOR, SHERIDAN, BIG
HORN, WYOLA, LAME DEER, FORT SMITH, DAYTON, BUSBY, HARDIN,
RANCHESTER, BIRNEY, CROW AGENCY, AND LODGE GRASS
851 PM MDT SUN APR 26 2026
..WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT MONDAY
* WHAT...SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS BETWEEN 1 AND 4
INCHES, GREATEST OVER THE HIGHER ELEVATIONS. WINDS GUSTING AS HIGH
AS 30 MPH.
* WHERE...IN MONTANA, BIGHORN CANYON, NORTHERN BIG HORN, SOUTHERN BIG
HORN, AND SOUTHERN ROSEBUD. IN WYOMING, SHERIDAN FOOTHILLS.
* WHEN...UNTIL NOON MDT MONDAY.
* IMPACTS...PLAN ON SLUSHY ROAD CONDITIONS AND REDUCED VISIBILITY.
THIS INCLUDES I-90 FROM LODGE GRASS TO SHERIDAN, AND US-212 OVER
LAME DEER DIVIDE. THE HAZARDOUS CONDITIONS WILL IMPACT THE MONDAY
MORNING COMMUTE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SLOW DOWN AND USE CAUTION WHILE TRAVELING. FOR THE LATEST ROAD
CONDITIONS, CALL 5 1 1.
MTZ171-WYZ198-271800-
/O.CON.KBYZ.WW.Y.0017.000000T0000Z-260427T1800Z/
PRYOR/NORTHERN BIGHORN MOUNTAINS-NORTHEAST BIGHORN MOUNTAINS-
INCLUDING THE LOCATIONS OF STORY AND BURGESS JCT
851 PM MDT SUN APR 26 2026
..WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON MDT MONDAY
* WHAT...SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS BETWEEN 5 AND 10
INCHES. WINDS GUSTING AS HIGH AS 35 MPH.
* WHERE...IN MONTANA, PRYOR/NORTHERN BIGHORN MOUNTAINS. IN WYOMING,
NORTHEAST BIGHORN MOUNTAINS.
* WHEN...UNTIL NOON MDT MONDAY.
* IMPACTS...TRAVEL ON HIGHWAY 14 THROUGH THE BIGHORNS COULD BE VERY
DIFFICULT. OUTDOOR RECREATION WILL BE IMPACTED BY WINTRY
CONDITIONS.
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
TESAR
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