006  
WWUS45 KBYZ 210204  
WSWBYZ  
 
URGENT - WINTER WEATHER MESSAGE  
NATIONAL WEATHER SERVICE BILLINGS MT  
804 PM MDT WED MAY 20 2026  
 
MTZ067-220000-  
/O.CON.KBYZ.WS.W.0009.000000T0000Z-260522T0000Z/  
ABSAROKA/BEARTOOTH MOUNTAINS-  
INCLUDING THE LOCATIONS OF COOKE CITY  
804 PM MDT WED MAY 20 2026  
   
..WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THURSDAY  
 
* WHAT...PERIODS OF HEAVY SNOW...MAINLY ON NORTH FACING SLOPES ABOVE  
7000 FT. TOTAL SNOW ACCUMULATIONS 8-15 INCHES. NORTH WINDS GUSTING  
AS HIGH AS 30 MPH.  
 
* WHERE...ABSAROKA/BEARTOOTH MOUNTAINS.  
 
* WHEN...UNTIL 6 PM MDT THURSDAY.  
 
* IMPACTS...RECREATION IN THE HIGH COUNTRY WILL BE IMPACTED BY HEAVY  
ACCUMULATING SNOW.  
 
* ADDITIONAL DETAILS...SEVERAL INCHES OF SNOW ARE EXPECTED OVER  
BEARTOOTH PASS, WHICH MAY IMPACT THE OPENING OF THE HIGHWAY AT THE  
END OF THE WEEK. BE SURE TO MONITOR ROAD CONDITIONS BEFORE  
TRAVELING.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
DON'T BE CAUGHT UNPREPARED IN THE HIGH COUNTRY DURING THIS WINTER  
STORM. FOR THE LATEST ROAD CONDITIONS, CALL 5 1 1.  
 
 
 
 
 
MTZ171-WYZ198-220215-  
/O.CON.KBYZ.WW.Y.0019.260521T0900Z-260522T0300Z/  
PRYOR/NORTHERN BIGHORN MOUNTAINS-NORTHEAST BIGHORN MOUNTAINS-  
INCLUDING THE LOCATIONS OF STORY AND BURGESS JCT  
804 PM MDT WED MAY 20 2026  
 
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 3 AM TO 9 PM MDT  
THURSDAY...  
 
* WHAT...SNOW EXPECTED. TOTAL SNOW ACCUMULATIONS 5 TO 10 INCHES.  
NORTH WINDS GUSTING AS HIGH AS 30 MPH.  
 
* WHERE...IN MONTANA, PRYOR/NORTHERN BIGHORN MOUNTAINS. IN WYOMING,  
NORTHEAST BIGHORN MOUNTAINS.  
 
* WHEN...FROM 3 AM TO 9 PM MDT THURSDAY.  
 
* IMPACTS...EXPECT WINTRY TRAVEL CONDITIONS ON US-14 THROUGH BURGESS  
JUNCTION. RECREATION IN THE HIGH COUNTRY WILL BE IMPACTED BY HEAVY  
ACCUMULATING SNOW.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
FOR THE LATEST ROAD CONDITIONS, CALL 5 1 1.  
 
 
 
 
 
ADDITIONAL GRAPHICS FOR THIS HAZARD CAN BE FOUND AT  
HTTP://WWW.WEATHER.GOV/BILLINGS  
 
LESTER  
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