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WWUS20 KWNS 221833

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ILZ000-INZ000-MOZ000-LMZ000-230200-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 294

NWS Storm Prediction Center Norman OK

135 PM CDT Mon Jun 22 2020



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Central and Northeast Illinois

  Northwest Indiana

  Eastern Missouri

  Lake Michigan



* Effective this Monday afternoon and evening from 135 PM until

  900 PM CDT.



* Primary threats include...

  Scattered damaging wind gusts to 70 mph possible

  Isolated large hail events to 1 inch in diameter possible



SUMMARY...Storms are expected to intensify within multiple pre-cold

frontal corridors across the region. While deep-layer winds are not

overly strong, a moist/unstable environment will support multicells

capable of wind damage and possibly some hail through the afternoon

and early evening.



The severe thunderstorm watch area is approximately along and 60

statute miles north and south of a line from 70 miles west southwest

of Springfield IL to 70 miles north northeast of Danville IL. 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.



&&



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

1 inch. Extreme turbulence and surface wind gusts to 60 knots. A few

cumulonimbi with maximum tops to 500. Mean storm motion vector

25020.



...Guyer

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