085  
WWUS85 KBYZ 182307  
SPSBYZ  
 
SPECIAL WEATHER STATEMENT  
NATIONAL WEATHER SERVICE BILLINGS MT  
507 PM MDT TUE AUG 18 2026  
 
MTZ031-032-058-190000-  
NORTHERN ROSEBUD MT-SOUTHERN ROSEBUD MT-CUSTER MT-  
507 PM MDT TUE AUG 18 2026  
 
...AN AREA OF STRONG THUNDERSTORMS WILL IMPACT SOUTHWESTERN CUSTER  
AND SOUTHERN ROSEBUD COUNTIES UNTIL 6 PM MDT...  
 
AT 507 PM MDT, DOPPLER RADAR WAS TRACKING AN AREA OF STRONG  
THUNDERSTORMS OVER ROSEBUD COUNTY, MOVING SOUTHEAST AT 30 MPH.  
 
HAZARD...WIND GUSTS UP TO 50 MPH AND HALF INCH SIZE HAIL.  
 
SOURCE...RADAR INDICATED.  
 
IMPACT...GUSTY WINDS COULD KNOCK DOWN TREE LIMBS AND BLOW AROUND  
UNSECURED OBJECTS. MINOR DAMAGE TO OUTDOOR OBJECTS IS  
POSSIBLE.  
 
LOCATIONS IMPACTED INCLUDE...  
COLSTRIP, ASHLAND, LAME DEER, ROSEBUD, BRANDENBERG, CARTERSVILLE,  
HATHAWAY AND MOON CREEK RANCH.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
MONITOR THE WEATHER SITUATION CLOSELY AND BE ALERT FOR THREATENING  
WEATHER CONDITIONS.  
 
FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM.  
LIGHTNING CAN STRIKE 10 MILES AWAY FROM A THUNDERSTORM. SEEK A SAFE  
SHELTER INSIDE A BUILDING OR VEHICLE.  
 

 
 
LAT...LON 4583 10691 4605 10686 4630 10649 4630 10605  
4579 10604 4579 10623 4543 10623 4548 10673  
4568 10673 4568 10691 4579 10691 4579 10688  
4583 10688  
TIME...MOT...LOC 2305Z 304DEG 52KT 4595 10667  
 
MAX HAIL SIZE...0.50 IN  
MAX WIND GUST...50 MPH  
 

 
 
TESAR  
 
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