834  
WWUS85 KBYZ 181252  
SPSBYZ  
 
SPECIAL WEATHER STATEMENT  
NATIONAL WEATHER SERVICE BILLINGS MT  
652 AM MDT THU SEP 18 2025  
 
MTZ030>033-036-037-058-138-WYZ199-181445-  
CUSTER MT-TREASURE MT-POWDER RIVER MT-SHERIDAN FOOTHILLS WY-  
CARTER MT-SOUTHERN ROSEBUD MT-FALLON MT-NORTHERN ROSEBUD MT-  
SOUTHERN BIG HORN MT-  
652 AM MDT THU SEP 18 2025  
   
..AREAS OF LOCALLY DENSE FOG THROUGH MID MORNING.
 
 
AREAS OF FOG HAVE DEVELOPED OVER MUCH OF SE MONTANA AND INTO  
SHERIDAN COUNTY WYOMING THIS MORNING, WITH LOCALLY DENSE FOG IN SOME  
AREAS. EXPECT VISIBILITIES UNDE 2 MILES IN MANY AREAS, DECREASING TO  
UNDER HALF A MILE IN SOME SPOTS. EXPECT FOG TO CONTINUE THROUGH MID  
MORNING.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
DRIVERS SHOULD SLOW DOWN AND EXERCISE CAUTION WHEN FOG IS  
ENCOUNTERED. PLEASE GIVE YOURSELF EXTRA TIME TO MAKE IT TO YOUR  
DESTINATION THIS MORNING.  
 

 
 

 
 
CHAMBERS  
 
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