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URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 402
NWS Storm Prediction Center Norman OK
300 PM EDT Thu Jul 29 2021
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
District Of Columbia
Western Maryland and the Eastern Shore
Eastern Panhandle of West Virginia
* Effective this Thursday afternoon and evening from 300 PM until
900 PM EDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph possible
Isolated large hail events to 1.5 inches in diameter possible
SUMMARY...Thunderstorms are expected to develop soon along the
mountains of western Virginia and spread eastward across the watch
area. The strongest cells will be capable of damaging wind gusts
The severe thunderstorm watch area is approximately along and 45
statute miles north and south of a line from 60 miles west southwest
of Martinsburg WV to 40 miles east northeast of Wallops VA. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU2).
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
OTHER WATCH INFORMATION...CONTINUE...WW 401...
AVIATION...A few severe thunderstorms with hail surface and aloft to
1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector