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165 

WWUS20 KWNS 181922

SEL9

SPC WW 181922

INZ000-OHZ000-PAZ000-LEZ000-190200-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 599

NWS Storm Prediction Center Norman OK

325 PM EDT Sun Aug 18 2019



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Parts of east central and northeast Indiana

  Western and northern Ohio

  Extreme northwest Pennsylvania

  Lake Erie



* Effective this Sunday afternoon and evening from 325 PM until

  1000 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...Scattered thunderstorms are ongoing from northwest Ohio

across Lake Erie along a remnant thunderstorm outflow boundary, and

more storms will likely form through the afternoon farther south and

west.  The storm environment favors multicell clusters, and

potentially marginal supercells, capable of producing damaging winds

and isolated large hail through this evening.



The severe thunderstorm watch area is approximately along and 45

statute miles north and south of a line from 10 miles north

northwest of Muncie IN to 15 miles east northeast of Erie 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.



&&



OTHER WATCH INFORMATION...CONTINUE...WW 598...



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 550. Mean storm motion vector

27025.



...Thompson

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