620
WWUS20 KWNS 121844
SEL1
SPC WW 121844
DCZ000-MDZ000-VAZ000-WVZ000-CWZ000-130100-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 321
NWS STORM PREDICTION CENTER NORMAN OK
245 PM EDT FRI JUN 12 2026
THE NWS STORM PREDICTION CENTER HAS ISSUED A
* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
DISTRICT OF COLUMBIA
MARYLAND
VIRGINIA
EASTERN WEST VIRGINIA
COASTAL WATERS
* EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 245 PM UNTIL
900 PM EDT.
* PRIMARY THREATS INCLUDE...
SCATTERED DAMAGING WIND GUSTS TO 70 MPH LIKELY
ISOLATED LARGE HAIL EVENTS TO 1 INCH IN DIAMETER POSSIBLE
SUMMARY...CLUSTERS OF STORMS WILL FORM IN VIRGINIA AND MARYLAND THIS
AFTERNOON, AND WILL SPREAD EASTWARD FROM WEST VIRGINIA. THE STORM
ENVIRONMENT WILL FAVOR DAMAGING DOWNBURSTS WITH WINDS UP TO 60-70
MPH, WHILE THE STRONGEST STORMS COULD PRODUCE ISOLATED LARGE HAIL
NEAR 1 INCH IN DIAMETER.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 85
STATUTE MILES EAST AND WEST OF A LINE FROM 45 MILES NORTHWEST OF
WASHINGTON DC TO 30 MILES SOUTH SOUTHEAST OF DUBLIN VA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU1).
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
1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A FEW
CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR
29020.
...THOMPSON
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