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URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 438

NWS Storm Prediction Center Norman OK

445 PM EDT Fri Aug 13 2021



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Eastern Ohio

  Southwest Pennsylvania

  Northern West Virginia



* Effective this Friday afternoon and evening from 445 PM until

  1100 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...Clusters of thunderstorms are expected to track slowly

northeastward this afternoon and evening across the watch area.  The

strongest cells will pose a risk of locally damaging wind gusts and

hail.



The severe thunderstorm watch area is approximately along and 70

statute miles north and south of a line from 35 miles northwest of

Athens OH to 5 miles east northeast of Latrobe PA. For a complete

depiction of the watch see the associated watch outline update

(WOUS64 KWNS WOU8).



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.



&&



OTHER WATCH INFORMATION...CONTINUE...WW 436...WW 437...



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

25025.



...Hart

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