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WWUS20 KWNS 080103

SEL4

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INZ000-MIZ000-OHZ000-PAZ000-LEZ000-LMZ000-080700-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 84

NWS Storm Prediction Center Norman OK

905 PM EDT Tue Apr 7 2020



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Northern Indiana

  Far southern Lower Michigan

  Northern Ohio

  Northwest Pennsylvania

  Lake Erie

  Lake Michigan



* Effective this Tuesday night and Wednesday morning from 905 PM

  until 300 AM EDT.



* Primary threats include...

  Scattered damaging winds likely with isolated significant gusts

    to 75 mph possible

  Scattered large hail likely with isolated very large hail events

    to 2.5 inches in diameter possible

  A tornado or two possible



SUMMARY...Multiple clusters of supercells will evolve east-southeast

tonight with development into a broader MCS expected. A mix of large

hail and damaging wind gusts appear probable.



The severe thunderstorm watch area is approximately along and 60

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

Valparaiso IN to 35 miles north northeast of Youngstown OH. For a

complete depiction of the watch see the associated watch outline

update (WOUS64 KWNS WOU4).



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 81...WW 82...WW 83...



AVIATION...A few severe thunderstorms with hail surface and aloft to

2.5 inches. Extreme turbulence and surface wind gusts to 65 knots. A

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

29040.



...Grams

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