554
WWUS20 KWNS 302017
SEL4
SPC WW 302017
MNZ000-WIZ000-LMZ000-010300-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 424
NWS STORM PREDICTION CENTER NORMAN OK
320 PM CDT TUE JUN 30 2026
THE NWS STORM PREDICTION CENTER HAS ISSUED A
* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
SOUTHEAST MINNESOTA
WISCONSIN
LAKE MICHIGAN
* EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 320 PM UNTIL
1000 PM CDT.
* PRIMARY THREATS INCLUDE...
SCATTERED LARGE HAIL AND ISOLATED VERY LARGE HAIL EVENTS TO 2
INCHES IN DIAMETER POSSIBLE
SCATTERED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE
A TORNADO OR TWO POSSIBLE
SUMMARY...SCATTERED STRONG TO SEVERE THUNDERSTORMS ARE EXPECTED TO
INTENSIFY, GENERALLY NEAR WHERE STORMS MOVED THROUGH THE REGION
EARLIER DAY. THIS RENEWED DEVELOPMENT MAY PRODUCE LARGE HAIL AND
DAMAGING WINDS INTO THIS EVENING WITHIN A VERY MOIST AND UNSTABLE
ENVIRONMENT.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 45
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 40 MILES NORTH
NORTHWEST OF ROCHESTER MN TO 45 MILES NORTHEAST OF GREEN BAY WI. FOR
A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU4).
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 423...
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 600. MEAN STORM MOTION VECTOR
24025.
...GUYER
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