221  
WWUS85 KRIW 162230  
SPSRIW  
 
SPECIAL WEATHER STATEMENT  
NATIONAL WEATHER SERVICE RIVERTON WY  
430 PM MDT MON JUN 16 2025  
 
WYZ020-162300-  
NATRONA COUNTY LOWER ELEVATIONS-  
430 PM MDT MON JUN 16 2025  
 
...A STRONG THUNDERSTORM WILL IMPACT EAST CENTRAL NATRONA COUNTY  
THROUGH 500 PM MDT...  
 
AT 430 PM MDT, DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM NEAR  
EMIGRANT GAP, WHICH IS 8 MILES NORTHWEST OF CASPER, MOVING EAST AT 30  
MPH.  
 
HAZARD...WIND GUSTS UP TO 50 MPH AND HALF INCH HAIL.  
 
SOURCE...RADAR INDICATED.  
 
IMPACT...GUSTY WINDS COULD KNOCK DOWN TREE LIMBS AND BLOW AROUND  
UNSECURED OBJECTS. MINOR HAIL DAMAGE TO VEGETATION IS  
POSSIBLE.  
 
THIS STRONG THUNDERSTORM WILL BE NEAR...  
NORTHEASTERN CASPER, MILLS, AND BAR NUNN AROUND 435 PM MDT.  
EVANSVILLE AROUND 445 PM MDT.  
 
THIS INCLUDES INTERSTATE 25 BETWEEN MILE MARKERS 176 AND 200.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
IF OUTDOORS, CONSIDER SEEKING SHELTER INSIDE A BUILDING.  
 
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.  
 
THIS STORM MAY INTENSIFY, SO BE CERTAIN TO MONITOR LOCAL RADIO  
STATIONS AND AVAILABLE TELEVISION STATIONS FOR ADDITIONAL INFORMATION  
AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.  
 
 
 
LAT...LON 4280 10607 4285 10658 4299 10658 4306 10607  
TIME...MOT...LOC 2230Z 268DEG 26KT 4290 10648  
 
MAX HAIL SIZE...0.50 IN  
MAX WIND GUST...50 MPH  
 
 
 
DZIEWALTOWSKI  
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