

244 

WWUS20 KWNS 141737

SEL4

SPC WW 141737

DCZ000-DEZ000-MDZ000-NJZ000-PAZ000-VAZ000-WVZ000-CWZ000-150100-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 414

NWS Storm Prediction Center Norman OK

140 PM EDT Fri Jul 14 2017



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  District Of Columbia

  Delaware

  Maryland

  Southern New Jersey

  Southern Pennsylvania

  Northern Virginia

  Eastern Panhandle of West Virginia

  Coastal Waters



* Effective this Friday afternoon and evening from 140 PM until

  900 PM EDT.



* Primary threats include...

  Scattered damaging wind gusts to 70 mph likely

  Isolated large hail events to 1.5 inches in diameter possible



SUMMARY...Thunderstorms are increasing over the watch area, and will

pose a risk of locally damaging wind gusts through the afternoon.



The severe thunderstorm watch area is approximately along and 60

statute miles north and south of a line from 65 miles west of

Martinsburg WV to 25 miles southeast of Atlantic City NJ. For a

complete depiction of the watch see the associated watch outline

update (WOUS64 KWNS WOU4).



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

1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A

few cumulonimbi with maximum tops to 500. Mean storm motion vector

28030.



...Hart

