030  
WWUS45 KBYZ 110905  
WSWBYZ  
 
URGENT - WINTER WEATHER MESSAGE  
NATIONAL WEATHER SERVICE BILLINGS MT  
205 AM MST SAT JAN 11 2025  
 
MTZ057-058-138-169-120915-  
/O.CON.KBYZ.WS.W.0002.000000T0000Z-250113T1200Z/  
NORTHERN BIG HORN-SOUTHERN ROSEBUD-SOUTHERN BIG HORN-BIGHORN  
CANYON-  
INCLUDING THE LOCATIONS OF ASHLAND, CROW AGENCY, LAME DEER,  
HARDIN, BIRNEY, LODGE GRASS, FORT SMITH, PRYOR, WYOLA, AND BUSBY  
205 AM MST SAT JAN 11 2025  
   
..WINTER STORM WARNING REMAINS IN EFFECT UNTIL 5 AM MST MONDAY
 
 
* WHAT...HEAVY SNOW AND BLOWING SNOW. TOTAL SNOW ACCUMULATIONS  
BETWEEN 3 AND 10 INCHES, WITH LOCALLY UP TO 16 INCHES IN THE  
HIGHER HILLS. WINDS GUSTING AS HIGH AS 45 MPH TODAY.  
 
* WHERE...BIGHORN CANYON, NORTHERN BIG HORN, SOUTHERN BIG HORN, AND  
SOUTHERN ROSEBUD.  
 
* WHEN...UNTIL 5 AM MST MONDAY.  
 
* IMPACTS...TRAVEL COULD BE VERY DIFFICULT TO LOCALLY IMPOSSIBLE AT  
TIMES. THIS INCLUDES PORTIONS OF I-90 SOUTH OF CROW AGENCY THROUGH  
THE WYOMING STATE LINE, AND US-212 EAST OF CROW AGENCY TO ASHLAND.  
WIDESPREAD BLOWING SNOW COULD SIGNIFICANTLY REDUCE VISIBILITY,  
WITH NEAR WHITE OUT CONDITIONS AT TIMES.  
 
* ADDITIONAL DETAILS...THE HEAVIEST SNOWFALL IS EXPECTED IN THE  
HIGHER HILLS INCLUDING THE WOLF MOUNTAINS, AND THE NORTH FACING  
FOOTHILLS OF THE PRYOR AND BIGHORN MOUNTAINS. THE MOST INTENSE  
SNOWFALL IS EXPECTED THIS AFTERNOON THROUGH SUNDAY MORNING.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
PERSONS SHOULD CONSIDER DELAYING ALL TRAVEL THROUGH THE WARNED AREA.  
MOTORISTS SHOULD USE EXTREME CAUTION IF TRAVEL IS ABSOLUTELY  
NECESSARY.  
 
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.  
 

 
 

 
 
MTZ067-068-120915-  
/O.CON.KBYZ.WS.W.0002.000000T0000Z-250113T0100Z/  
ABSAROKA/BEARTOOTH MOUNTAINS-CRAZY MOUNTAINS-  
INCLUDING THE LOCATIONS OF COOKE CITY  
205 AM MST SAT JAN 11 2025  
   
..WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MST SUNDAY
 
 
* WHAT...HEAVY SNOW AND BLOWING SNOW. TOTAL SNOW ACCUMULATIONS  
BETWEEN 8 AND 16 INCHES, WITH LOCALLY HEAVIER ACCUMULATIONS OVER  
20 INCHES POSSIBLE. WINDS GUSTING AS HIGH AS 60 MPH TODAY.  
 
* WHERE...ABSAROKA/BEARTOOTH MOUNTAINS AND CRAZY MOUNTAINS.  
 
* WHEN...UNTIL 6 PM MST SUNDAY.  
 
* IMPACTS...RECREATION IN THE HIGH COUNTRY WILL BE IMPACTED BY HEAVY  
SNOWFALL AND SIGNIFICANT BLOWING AND DRIFTING SNOW. BACK COUNTRY  
TRAVEL AND ACTIVITIES COULD BE VERY DIFFICULT TO DANGEROUS.  
WIDESPREAD BLOWING SNOW WILL RESULT IN NEAR WHITEOUT CONDITIONS AT  
TIMES.  
 
* ADDITIONAL DETAILS...THE HEAVIEST SNOWFALL IS EXPECTED ON WEST TO  
NORTHWEST FACING ASPECTS. EXPECT AVALANCHE DANGER TO INCREASE DUE  
TO THE HEAVY SNOW AND STRONG WINDS.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
IF YOU ARE HEADING TO THE BACK COUNTRY BE SURE TO BE PREPARED FOR  
SEVERE WINTER CONDITIONS, AND LET SOMEONE KNOW OF YOUR PLANS IN CASE  
YOU BECOME STRANDED.  
 

 
 

 
 
MTZ171-WYZ198-120915-  
/O.CON.KBYZ.WS.W.0002.000000T0000Z-250113T0100Z/  
PRYOR/NORTHERN BIGHORN MOUNTAINS-NORTHEAST BIGHORN MOUNTAINS-  
INCLUDING THE LOCATIONS OF BURGESS JCT AND STORY  
205 AM MST SAT JAN 11 2025  
   
..WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MST SUNDAY
 
 
* WHAT...HEAVY SNOW AND BLOWING SNOW. TOTAL SNOW ACCUMULATIONS  
BETWEEN 8 AND 16 INCHES WITH LOCALLY HEAVIER ACCUMULATIONS OVER 20  
INCHES POSSIBLE. WINDS GUSTING AS HIGH AS 55 MPH TODAY.  
 
* WHERE...IN MONTANA, PRYOR/NORTHERN BIGHORN MOUNTAINS. IN WYOMING,  
NORTHEAST BIGHORN MOUNTAINS.  
 
* WHEN...UNTIL 6 PM MST SUNDAY.  
 
* IMPACTS...RECREATION IN THE HIGH COUNTRY WILL BE IMPACTED BY HEAVY  
SNOWFALL AND SIGNIFICANT BLOWING AND DRIFTING SNOW. BACK COUNTRY  
TRAVEL AND ACTIVITIES COULD BE VERY DIFFICULT TO DANGEROUS.  
WIDESPREAD BLOWING SNOW WILL RESULT IN NEAR WHITEOUT CONDITIONS AT  
TIMES.  
 
* ADDITIONAL DETAILS...TRAVEL OVER US-14 IN THE BIGHORN MOUNTAINS  
MAY BE IMPOSSIBLE AT TIMES DUE TO HEAVY SNOW, NEAR WHITEOUT  
CONDITIONS IN BLOWING SNOW, AND SIGNIFICANT DRIFTING.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
PERSONS SHOULD CONSIDER DELAYING ALL TRAVEL. MOTORISTS SHOULD USE  
EXTREME CAUTION IF TRAVEL IS ABSOLUTELY NECESSARY.  
 
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>033-036-037-120915-  
/O.CON.KBYZ.WW.Y.0006.000000T0000Z-250112T1200Z/  
TREASURE-NORTHERN ROSEBUD-CUSTER-FALLON-POWDER RIVER-CARTER-  
INCLUDING THE LOCATIONS OF HYSHAM, BROADUS, BAKER, ANGELA, ISMAY,  
COLSTRIP, WEBSTER, BIGHORN, MILES CITY, BIDDLE, POWDERVILLE,  
EKALAKA, SONNETTE, INGOMAR, BELLTOWER, VOLBORG, PLEVNA, ALZADA,  
HAMMOND, AND FORSYTH  
205 AM MST SAT JAN 11 2025  
   
..WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 5 AM MST SUNDAY
 
 
* WHAT...SNOW AND BLOWING SNOW. TOTAL SNOW ACCUMULATIONS BETWEEN 2  
AND 5 INCHES, WITH LOCALLY HEAVIER ACCUMULATIONS POSSIBLE OVER THE  
HIGHER HILLS. WINDS GUSTING AS HIGH AS 45 MPH TODAY.  
 
* WHERE...PORTIONS OF SOUTH CENTRAL AND SOUTHEAST MONTANA.  
 
* WHEN...UNTIL 5 AM MST SUNDAY.  
 
* IMPACTS...ROADS, AND ESPECIALLY BRIDGES AND OVERPASSES, WILL  
LIKELY BECOME SLICK AND HAZARDOUS. PLAN ON DIFFICULT TRAVEL  
CONDITIONS WITH SNOW COVERED ROADS, POOR VISIBILITY, AND GUSTY  
WINDS.  
 
* ADDITIONAL DETAILS...THE MOST INTENSE SNOWFALL IS EXPECTED FROM  
LATE THIS AFTERNOON THROUGH SATURDAY NIGHT.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
SLOW DOWN AND USE CAUTION WHILE TRAVELING. FOR THE LATEST ROAD  
CONDITIONS, CALL 5 1 1.  
 

 
 

 
 
MTZ063-120915-  
/O.CON.KBYZ.WW.Y.0006.000000T0000Z-250113T0100Z/  
JUDITH GAP-  
INCLUDING THE LOCATIONS OF JUDITH GAP  
205 AM MST SAT JAN 11 2025  
   
..WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST SUNDAY
 
 
* WHAT...SNOW AND BLOWING SNOW. TOTAL SNOW ACCUMULATIONS BETWEEN 2  
AND 5 INCHES. WINDS GUSTING AS HIGH AS 50 MPH TODAY.  
 
* WHERE...JUDITH GAP.  
 
* WHEN...UNTIL 6 PM MST SUNDAY.  
 
* IMPACTS...ROADS, AND ESPECIALLY BRIDGES AND OVERPASSES, WILL  
LIKELY BECOME SLICK AND HAZARDOUS. PLAN ON DIFFICULT TRAVEL  
CONDITIONS WITH SNOW COVERED ROADS, POOR VISIBILITY, AND GUSTY  
WINDS.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
SLOW DOWN AND USE CAUTION WHILE TRAVELING. FOR THE LATEST ROAD  
CONDITIONS, CALL 5 1 1.  
 

 
 

 
 
WYZ199-120915-  
/O.CON.KBYZ.WW.Y.0006.000000T0000Z-250113T0100Z/  
SHERIDAN FOOTHILLS-  
INCLUDING THE LOCATIONS OF DAYTON, CLEARMONT, SHERIDAN, BIG HORN,  
AND RANCHESTER  
205 AM MST SAT JAN 11 2025  
   
..WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MST SUNDAY
 
 
* WHAT...SNOW AND BLOWING SNOW. TOTAL SNOW ACCUMULATIONS BETWEEN 3  
AND 6 INCHES, WITH LOCALLY HEAVIER ACCUMULATIONS POSSIBLE. WINDS  
GUSTING AS HIGH AS 50 MPH TODAY.  
 
* WHERE...SHERIDAN FOOTHILLS.  
 
* WHEN...UNTIL 6 PM MST SUNDAY.  
 
* IMPACTS...ROADS, AND ESPECIALLY BRIDGES AND OVERPASSES, WILL  
LIKELY BECOME SLICK AND HAZARDOUS. PLAN ON DIFFICULT TRAVEL  
CONDITIONS WITH SNOW COVERED ROADS, POOR VISIBILITY, AND GUSTY  
WINDS.  
 
* ADDITIONAL DETAILS...LOCALLY HEAVIER SNOWFALL IS POSSIBLE OVER THE  
HIGHER HILLS FROM DAYTON NORTH TO THE STATE LINE, AND SOUTH OF  
SHERIDAN TO NEAR STORY.  
 
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  
 
CHAMBERS  
 
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