521  
WWUS20 KWNS 041901  
SEL6  
SPC WW 041901  
MNZ000-NDZ000-SDZ000-050200-  
 
URGENT - IMMEDIATE BROADCAST REQUESTED  
SEVERE THUNDERSTORM WATCH NUMBER 486  
NWS STORM PREDICTION CENTER NORMAN OK  
300 PM EDT FRI JUL 4 2025  
 
THE NWS STORM PREDICTION CENTER HAS ISSUED A  
 
* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF  
NORTHERN MINNESOTA  
EASTERN NORTH DAKOTA  
NORTHEASTERN SOUTH DAKOTA  
 
* EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 300 PM UNTIL  
1000 PM EDT.  
 
* PRIMARY THREATS INCLUDE...  
SCATTERED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE  
ISOLATED VERY LARGE HAIL EVENTS TO 2 INCHES IN DIAMETER POSSIBLE  
 
SUMMARY...THUNDERSTORM COVERAGE IS EXPECTED TO INCREASE THIS  
AFTERNOON ALONG A COLD FRONT ARCING ACROSS NORTHERN MN, EASTERN ND,  
AND NORTH-CENTRAL SD. STRONG BUOYANCY IS IN PLACE AHEAD OF THIS  
FRONT, FOSTERING THE POTENTIAL FOR ROBUST UPDRAFTS. VERTICAL SHEAR  
IS MODEST ACROSS MUCH OF THE AREA, WHICH COULD LIMIT STORM  
ORGANIZATION AND PROMOTE A QUICK TRANSITION TO A MOSTLY LINEAR MODE.  
THE ONLY EXCEPTION IS ACROSS NORTH-CENTRAL/NORTHEAST MN WHERE  
VERTICAL SHEAR SHOULD REMAIN STRONG ENOUGH TO SUPPORT STRONGER, MORE  
ORGANIZED STORM STRUCTURES. DAMAGING GUSTS ARE THE PRIMARY RISK, BUT  
ISOLATED LARGE TO VERY LARGE HAIL IS ALSO POSSIBLE, PARTICULARLY  
OVER NORTH-CENTRAL/NORTHEAST MN.  
 
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 80  
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 50 MILES SOUTH OF  
JAMESTOWN ND TO 25 MILES NORTH NORTHEAST OF ELY MN. FOR A COMPLETE  
DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE  
(WOUS64 KWNS WOU6).  
 
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  
27030.  
 
...MOSIER  
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