225  
WWUS85 KBYZ 130059  
SPSBYZ  
 
SPECIAL WEATHER STATEMENT  
NATIONAL WEATHER SERVICE BILLINGS MT  
659 PM MDT WED AUG 12 2026  
 
MTZ040-068-141-172-130145-  
MELVILLE FOOTHILLS MT-NORTHERN SWEET GRASS MT-CRAZY MOUNTAINS MT-  
NORTHERN PARK MT-  
659 PM MDT WED AUG 12 2026  
 
...A STRONG THUNDERSTORM WILL IMPACT NORTHWESTERN SWEET GRASS AND  
NORTHEASTERN PARK COUNTIES UNTIL 745 PM MDT...  
 
AT 659 PM MDT, DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM 14  
MILES EAST OF CLYDE PARK, OR 18 MILES WEST OF BIG TIMBER, MOVING  
NORTHEAST AT 25 MPH.  
 
HAZARD...WIND GUSTS UP TO 40 MPH AND PEA 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...  
MAINLY RURAL AREAS OF NORTHWESTERN SWEET GRASS AND NORTHEASTERN  
PARK COUNTIES.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
MONITOR THE WEATHER SITUATION CLOSELY AND BE ALERT FOR THREATENING  
WEATHER CONDITIONS.  
 
TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM AND MAY LEAD TO  
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.  
 
 
 
LAT...LON 4591 11016 4583 11036 4590 11045 4617 11013  
4601 10991  
TIME...MOT...LOC 0058Z 229DEG 21KT 4589 11032  
 
MAX HAIL SIZE...0.25 IN  
MAX WIND GUST...40 MPH  
 
 
 
STETZER  
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