

229 

WWUS20 KWNS 211628

SEL9

SPC WW 211628

KYZ000-NYZ000-OHZ000-PAZ000-VAZ000-WVZ000-LEZ000-LOZ000-220000-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 299

NWS Storm Prediction Center Norman OK

1230 PM EDT Mon Jun 21 2021



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Eastern Kentucky

  Western New York

  Eastern Ohio

  Western Pennsylvania

  Southwest Virginia

  Much of West Virginia

  Lake Erie

  Lake Ontario



* Effective this Monday afternoon and evening from 1230 PM until

  800 PM EDT.



* Primary threats include...

  Scattered damaging wind gusts to 70 mph likely

  Scattered large hail and isolated very large hail events to 2

    inches in diameter possible

  A tornado or two possible



SUMMARY...Thunderstorms will become more numerous through the

afternoon across the watch area, with the potential for scattered

severe storms.  Damaging winds appear to be the main threat, but

hail and an isolated tornado are also possible.



The severe thunderstorm watch area is approximately along and 75

statute miles east and west of a line from 50 miles north of

Rochester NY to 25 miles southeast of Huntington WV. For a complete

depiction of the watch see the associated watch outline update

(WOUS64 KWNS WOU9).



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

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

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

26035.



...Hart

