399
WWUS20 KWNS 021938
SEL9
SPC WW 021938
NEZ000-SDZ000-WYZ000-030300-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 269
NWS STORM PREDICTION CENTER NORMAN OK
140 PM MDT TUE JUN 2 2026
THE NWS STORM PREDICTION CENTER HAS ISSUED A
* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
NORTHWEST NEBRASKA
WESTERN AND CENTRAL SOUTH DAKOTA
EASTERN WYOMING
* EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 140 PM UNTIL
900 PM MDT.
* 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...THUNDERSTORM COVERAGE IS EXPECTED TO INCREASE OVER THE
NEXT FEW HOURS FROM EASTERN WYOMING INTO NORTHWEST NEBRASKA AND
WESTERN/CENTRAL SOUTH DAKOTA. PRIMARY THREAT INITIALLY WILL BE LARGE
HAIL, WITH THE THREAT TRANSITIONING TO STRONG TO SEVERE GUSTS AS
STORMS MOVE FROM A MORE CLUSTERED CELLULAR MODE TO A MORE LINEAR,
BOWING SEGMENT MODE. A FEW GUSTS OVER 70 MPH ARE POSSIBLE. THERE IS
ALSO A LOW-PROBABILITY TORNADO RISK IF A STORM CAN MATURE WHILE
REMAINING DISCRETE AND CELLULAR.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 80
STATUTE MILES EAST AND WEST OF A LINE FROM 5 MILES NORTHEAST OF
LEMMON SD TO 35 MILES SOUTHEAST OF SCOTTSBLUFF NE. FOR A COMPLETE
DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE
(WOUS64 KWNS WOU9).
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
2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A
FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR
24025.
...MOSIER
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