372
WWUS20 KWNS 091801
SEL7
SPC WW 091801
DCZ000-MDZ000-NCZ000-PAZ000-VAZ000-WVZ000-CWZ000-100200-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 497
NWS STORM PREDICTION CENTER NORMAN OK
200 PM EDT WED JUL 9 2025
THE NWS STORM PREDICTION CENTER HAS ISSUED A
* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
DISTRICT OF COLUMBIA
MARYLAND
FAR NORTHWESTERN NORTH CAROLINA
SOUTH-CENTRAL PENNSYLVANIA
NORTHERN, WESTERN, AND CENTRAL VIRGINIA
EASTERN WEST VIRGINIA
COASTAL WATERS
* EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 200 PM
UNTIL 1000 PM EDT.
* PRIMARY THREATS INCLUDE...
SCATTERED DAMAGING WIND GUSTS TO 70 MPH LIKELY
ISOLATED LARGE HAIL EVENTS TO 1 INCH IN DIAMETER POSSIBLE
SUMMARY...THUNDERSTORM COVERAGE IS EXPECTED TO INCREASE ACROSS THE
REGION THIS AFTERNOON, WITH MULTIPLE ROUNDS OF STORMS POSSIBLE.
MODERATE BUOYANCY AND VERTICAL SHEAR IS EXPECTED TO SUPPORT BOWING
LINE SEGMENTS CAPABLE OF DAMAGING WIND GUSTS. A FEW INSTANCES OF
HAIL ARE POSSIBLE AS WELL, PARTICULARLY OVER REGIONS OF HIGHER
TERRAIN.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 95
STATUTE MILES EAST AND WEST OF A LINE FROM 5 MILES WEST NORTHWEST OF
HAGERSTOWN MD TO 60 MILES SOUTH SOUTHWEST OF DUBLIN VA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU7).
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
27035.
...MOSIER
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