724  
WUUS55 KRIW 010318  
SVRRIW  
WYC019-010400-  
/O.NEW.KRIW.SV.W.0099.250801T0318Z-250801T0400Z/  
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED  
SEVERE THUNDERSTORM WARNING  
NATIONAL WEATHER SERVICE RIVERTON WY  
918 PM MDT THU JUL 31 2025  
 
THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A  
 
* SEVERE THUNDERSTORM WARNING FOR...  
NORTH CENTRAL JOHNSON COUNTY IN NORTH CENTRAL WYOMING...  
 
* UNTIL 1000 PM MDT.  
 
* AT 917 PM MDT, A SEVERE THUNDERSTORM WAS LOCATED 7 MILES SOUTHEAST  
OF BUFFALO, MOVING WEST AT 5 MPH.  
 
HAZARD...60 MPH WIND GUSTS AND QUARTER SIZE HAIL.  
 
SOURCE...RADAR INDICATED.  
 
IMPACT...HAIL DAMAGE TO VEHICLES IS EXPECTED. EXPECT WIND DAMAGE  
TO ROOFS, SIDING, AND TREES.  
 
* THIS SEVERE THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF  
NORTH CENTRAL JOHNSON COUNTY, INCLUDING THE FOLLOWING LOCATIONS...  
JOHNSON COUNTY FAIRGROUNDS.  
 
THIS INCLUDES THE FOLLOWING HIGHWAYS...  
INTERSTATE 25 BETWEEN MILE MARKERS 288 AND 299.  
INTERSTATE 90 BETWEEN MILE MARKERS 57 AND 70.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A  
BUILDING.  
 
VERY HEAVY RAINFALL IS OCCURRING WITH THIS STORM, AND MAY LEAD TO  
FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.  
 

 
 
LAT...LON 4436 10648 4420 10647 4418 10670 4438 10671  
TIME...MOT...LOC 0317Z 088DEG 5KT 4428 10659  
 
HAIL THREAT...RADAR INDICATED  
MAX HAIL SIZE...1.00 IN  
WIND THREAT...RADAR INDICATED  
MAX WIND GUST...60 MPH  
 

 
 
MCDONALD  
 
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