786
WWUS20 KWNS 232037
SEL8
SPC WW 232037
NEZ000-SDZ000-240200-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 618
NWS STORM PREDICTION CENTER NORMAN OK
240 PM MDT SUN AUG 23 2026
THE NWS STORM PREDICTION CENTER HAS ISSUED A
* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
WESTERN AND NORTHWESTERN NEBRASKA
WESTERN SOUTH DAKOTA
* EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 240 PM UNTIL
800 PM MDT.
* PRIMARY THREATS INCLUDE...
SCATTERED DAMAGING WINDS AND ISOLATED SIGNIFICANT GUSTS TO 75
MPH POSSIBLE
SCATTERED LARGE HAIL AND ISOLATED VERY LARGE HAIL EVENTS TO 2
INCHES IN DIAMETER POSSIBLE
SUMMARY...WIDELY SCATTERED SEVERE THUNDERSTORMS ARE FORECAST THROUGH
THE LATE AFTERNOON AND EVENING WITHIN THE WATCH AREA. A COUPLE OF
SUPERCELLS AND SEVERE MULTICELLS WILL YIELD A RISK FOR LARGE HAIL
(MAINLY 1 TO 2 INCHES IN DIAMETER) AND SEVERE GUSTS (60 TO 75 MPH).
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 60
STATUTE MILES EAST AND WEST OF A LINE FROM 35 MILES NORTHEAST OF
BUFFALO SD TO 50 MILES SOUTHEAST OF ALLIANCE NE. FOR A COMPLETE
DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE
(WOUS64 KWNS WOU8).
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 617...
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO
2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65 KNOTS. A
FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR
29020.
...SMITH
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