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WWUS20 KWNS 191843

SEL7

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OHZ000-PAZ000-WVZ000-200100-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 457

NWS Storm Prediction Center Norman OK

245 PM EDT Sat Aug 19 2017



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  East Central Ohio

  Western and Central Pennsylvania

  Northern West Virginia Panhandle



* Effective this Saturday afternoon and evening from 245 PM until

  900 PM EDT.



* Primary threats include...

  Scattered damaging wind gusts to 65 mph possible

  Scattered large hail events to 1.5 inches in diameter possible



SUMMARY...Storms developing over eastern Ohio into northwest

Pennsylvania are expected to move eastward with potential to produce

damaging wind gusts and occasional large hail.  The activity will

continue into parts of central Pennsylvania into the early evening

hours before weakening after sunset.



The severe thunderstorm watch area is approximately along and 50

statute miles north and south of a line from 20 miles west northwest

of Zanesville OH to 45 miles east of State College PA. 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

1.5 inches. Extreme turbulence and surface wind gusts to 55 knots. A

few cumulonimbi with maximum tops to 450. Mean storm motion vector

27030.



...Weiss

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