652
WWUS20 KWNS 160457
SEL4
SPC WW 160457
SDZ000-161100-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 594
NWS STORM PREDICTION CENTER NORMAN OK
1200 AM CDT SAT AUG 16 2025
THE NWS STORM PREDICTION CENTER HAS ISSUED A
* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
CENTRAL AND EASTERN SOUTH DAKOTA
* EFFECTIVE THIS SATURDAY MORNING FROM MIDNIGHT UNTIL 600 AM CDT.
* PRIMARY THREATS INCLUDE...
SCATTERED DAMAGING WINDS LIKELY WITH ISOLATED SIGNIFICANT GUSTS
TO 75 MPH POSSIBLE
SCATTERED LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE
A TORNADO OR TWO POSSIBLE
SUMMARY...STORMS ACROSS WESTERN SOUTH DAKOTA AND NORTHWEST NEBRASKA
LATE THIS EVENING SHOULD FURTHER ORGANIZE, INTENSIFY, AND LIKELY
GRADUALLY ACCELERATE EAST-NORTHEASTWARD OVERNIGHT ACROSS CENTRAL
INTO EASTERN SOUTH DAKOTA. MULTIPLE CORRIDORS OF WIND DAMAGE,
POTENTIALLY SIGNIFICANT ON A LOCALIZED BASIS, COULD OCCUR, WITH SOME
HAIL POSSIBLE AS WELL.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 80
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 30 MILES NORTH
NORTHWEST OF CHAMBERLAIN SD TO 20 MILES NORTHEAST OF BROOKINGS SD.
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 593...
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO
1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65 KNOTS. A
FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM MOTION VECTOR
25035.
...GUYER
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