352  
WWUS20 KWNS 291942  
SEL9  
SPC WW 291942  
COZ000-NEZ000-SDZ000-WYZ000-300300-  
 
URGENT - IMMEDIATE BROADCAST REQUESTED  
SEVERE THUNDERSTORM WATCH NUMBER 479  
NWS STORM PREDICTION CENTER NORMAN OK  
145 PM MDT SUN JUN 29 2025  
 
THE NWS STORM PREDICTION CENTER HAS ISSUED A  
 
* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF  
NORTHEAST COLORADO  
WESTERN NEBRASKA  
SOUTHWEST SOUTH DAKOTA  
EASTERN WYOMING  
 
* EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 145 PM UNTIL  
900 PM MDT.  
 
* PRIMARY THREATS INCLUDE...  
SCATTERED LARGE HAIL AND ISOLATED VERY LARGE HAIL EVENTS TO 2.5  
INCHES IN DIAMETER POSSIBLE  
SCATTERED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE  
 
SUMMARY...CLUSTERS OF THUNDERSTORMS WILL DEVELOP FROM EASTERN  
WYOMING INTO CENTRAL COLORADO THIS AFTERNOON. THESE STORMS WILL  
SPREAD EASTWARD INTO WESTERN SOUTH DAKOTA/NEBRASKA THROUGH THE  
EVENING. DAMAGING WINDS AND LARGE HAIL WILL BE POSSIBLE.  
 
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 60  
STATUTE MILES EAST AND WEST OF A LINE FROM 85 MILES NORTH NORTHWEST  
OF CHADRON NE TO 15 MILES SOUTHWEST OF LIMON CO. FOR A COMPLETE  
DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE  
(WOUS64 KWNS WOU9).  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE  
FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA.  
PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING  
WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE  
WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE  
TORNADOES.  
 
 
 
OTHER WATCH INFORMATION...CONTINUE...WW 477...WW 478...  
 
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO  
2.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A  
FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR  
28030.  
 
...HART  
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