SPC Severe Thunderstorm Watch 509



WW 509 SEVERE TSTM OH PA WV LE 151655Z – 152100Z

WW 0509 Image


URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 509
NWS Storm Prediction Center Norman OK
1155 AM EST Sun Nov 15 2020

The NWS Storm Prediction Center has issued a

* Severe Thunderstorm Watch for portions of 
  Central to eastern Ohio
  Western Pennsylvania
  Northern West Virginia Panhandle
  Lake Erie

* Effective this Sunday morning and afternoon from 1155 AM until
  400 PM EST.

* Primary threats include...
  Scattered damaging winds and isolated significant gusts to 75
    mph possible

SUMMARY...Broken band of low-topped thunderstorms should sweep
east-northeast across Ohio into western Pennsylvania this afternoon
with a continued risk of strong to severe wind gusts.

The severe thunderstorm watch area is approximately along and 60
statute miles north and south of a line from 40 miles northwest of
Zanesville OH to 5 miles northeast of Franklin PA. 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
0.5 inches. Extreme turbulence and surface wind gusts to 65 knots. A
few cumulonimbi with maximum tops to 300. Mean storm motion vector
25050.

...Grams

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