257
WWUS20 KWNS 171815
SEL1
SPC WW 171815
IAZ000-MNZ000-WIZ000-180100-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 341
NWS STORM PREDICTION CENTER NORMAN OK
120 PM CDT WED JUN 17 2026
THE NWS STORM PREDICTION CENTER HAS ISSUED A
* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
NORTHEAST IOWA
SOUTHEAST MINNESOTA
SOUTHWEST WISCONSIN
* EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 120 PM
UNTIL 800 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...THUNDERSTORMS ARE EXPECTED TO INTENSIFY THIS AFTERNOON
NEAR A SURFACE LOW OVER SOUTHEAST MN. THESE STORMS WILL TRACK
EASTWARD TOWARD THE MISSISSIPPI RIVER BY EARLY EVENING. THE
STRONGEST STORMS WILL BE CAPABLE OF LARGE HAIL, DAMAGING WINDS, AND
PERHAPS A BRIEF TORNADO.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 50
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 65 MILES WEST NORTHWEST
OF ROCHESTER MN TO 30 MILES SOUTHEAST OF LA CROSSE WI. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU1).
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 340...
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 450. MEAN STORM MOTION VECTOR
27030.
...HART
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