868
WWUS20 KWNS 290300
SEL2
SPC WW 290300
SDZ000-291100-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 412
NWS STORM PREDICTION CENTER NORMAN OK
1000 PM CDT SUN JUN 28 2026
THE NWS STORM PREDICTION CENTER HAS ISSUED A
* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
SOUTHWEST AND CENTRAL SOUTH DAKOTA
* EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 1000 PM
UNTIL 600 AM CDT.
* PRIMARY THREATS INCLUDE...
SCATTERED DAMAGING WINDS AND ISOLATED SIGNIFICANT GUSTS TO 90
MPH LIKELY
SCATTERED LARGE HAIL AND ISOLATED VERY LARGE HAIL EVENTS TO 3
INCHES IN DIAMETER LIKELY
A TORNADO OR TWO POSSIBLE
SUMMARY...A CLUSTER OF SEVERE STORMS, INCLUDING EMBEDDED SUPERCELLS,
IS EXPECTED TO FORM AND MOVE NORTHEASTWARD INTO CENTRAL SOUTH DAKOTA
THROUGH DAYBREAK. THE STORMS WILL BE CAPABLE OF PRODUCING VERY
LARGE HAIL UP TO 3 INCHES IN DIAMETER, SIGNIFICANT SEVERE GUSTS OF
UP TO 90 MPH, AND POSSIBLY A TORNADO OR TWO.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 70
STATUTE MILES EAST AND WEST OF A LINE FROM 35 MILES NORTH NORTHEAST
OF PIERRE SD TO 75 MILES SOUTH OF PHILIP SD. FOR A COMPLETE
DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE
(WOUS64 KWNS WOU2).
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
3 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 80 KNOTS. A
FEW CUMULONIMBI WITH MAXIMUM TOPS TO 600. MEAN STORM MOTION VECTOR
23035.
...THOMPSON
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