318  
WWUS20 KWNS 031436  
SEL3  
SPC WW 031436  
MEZ000-NHZ000-032200-  
 
URGENT - IMMEDIATE BROADCAST REQUESTED  
SEVERE THUNDERSTORM WATCH NUMBER 483  
NWS STORM PREDICTION CENTER NORMAN OK  
1040 AM EDT THU JUL 3 2025  
 
THE NWS STORM PREDICTION CENTER HAS ISSUED A  
 
* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF  
MAINE  
NEW HAMPSHIRE  
 
* EFFECTIVE THIS THURSDAY MORNING AND EVENING FROM 1040 AM UNTIL  
600 PM EDT.  
 
* PRIMARY THREATS INCLUDE...  
SCATTERED DAMAGING WIND GUSTS TO 70 MPH LIKELY  
SCATTERED LARGE HAIL AND ISOLATED VERY LARGE HAIL EVENTS TO 2  
INCHES IN DIAMETER POSSIBLE  
 
SUMMARY...THUNDERSTORM COVERAGE IS EXPECTED TO INCREASE ACROSS THE  
REGION OVER THE NEXT FEW HOURS, WITH MULTIPLE ROUNDS OF STORMS  
POSSIBLE. ENVIRONMENTAL CONDITIONS SUPPORT SUPERCELLS CAPABLE OF  
LARGE HAIL WITH THE INITIAL MORE DISCRETE DEVELOPMENT. WITH TIME, A  
TREND TOWARDS A MORE LINEAR MODE IS ANTICIPATED. AS THIS OCCURS, THE  
PRIMARY HAZARD WILL TRANSITION FROM LARGE HAIL TO DAMAGING GUSTS.  
 
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 80  
STATUTE MILES EAST AND WEST OF A LINE FROM 45 MILES NORTH OF HOULTON  
ME TO 35 MILES SOUTHWEST OF PORTSMOUTH NH. FOR A COMPLETE DEPICTION  
OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS  
WOU3).  
 
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.  
 

 
 
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO  
2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A  
FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR  
26035.  
 
...MOSIER  
 
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