500
WWUS20 KWNS 292329
SEL7
SPC WW 292329
IAZ000-MNZ000-NEZ000-SDZ000-300500-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 417
NWS STORM PREDICTION CENTER NORMAN OK
630 PM CDT MON JUN 29 2026
THE NWS STORM PREDICTION CENTER HAS ISSUED A
* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
NORTHWEST IOWA
CENTRAL AND SOUTHWEST MINNESOTA
EXTREME NORTHEAST NEBRASKA
EASTERN SOUTH DAKOTA
* EFFECTIVE THIS MONDAY NIGHT FROM 630 PM UNTIL MIDNIGHT CDT.
* PRIMARY THREATS INCLUDE...
SCATTERED DAMAGING WINDS AND ISOLATED SIGNIFICANT GUSTS TO 80
MPH LIKELY
SCATTERED LARGE HAIL AND ISOLATED VERY LARGE HAIL EVENTS TO 2
INCHES IN DIAMETER POSSIBLE
A TORNADO OR TWO POSSIBLE
SUMMARY...THUNDERSTORM DEVELOPMENT IS EXPECTED IN THE NEXT HOUR OR
SO ACROSS EASTERN SOUTH DAKOTA AND FAR NORTHEAST NEBRASKA, AND THE
STORMS WILL SUBSEQUENTLY SPREAD EAST-NORTHEASTWARD INTO MINNESOTA.
A MIX OF SUPERCELLS AND LINE SEGMENTS WILL BE CAPABLE OF PRODUCING
SWATHS OF DAMAGING GUSTS UP TO 80 MPH, LARGE HAIL OF 1.5-2 INCHES IN
DIAMETER, AND A TORNADO OR TWO.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 65
STATUTE MILES EAST AND WEST OF A LINE FROM 25 MILES NORTH NORTHEAST
OF ALEXANDRIA MN TO 35 MILES EAST SOUTHEAST OF YANKTON SD. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU7).
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 415...WW 416...
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO
2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70 KNOTS. A
FEW CUMULONIMBI WITH MAXIMUM TOPS TO 600. MEAN STORM MOTION VECTOR
24035.
...THOMPSON
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