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WWUS20 KWNS 061735

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ARZ000-ILZ000-INZ000-KYZ000-MOZ000-TNZ000-062300-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 152

NWS Storm Prediction Center Norman OK

1235 PM CDT Thu May 6 2021



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Northeast Arkansas

  Southern Illinois

  Far southwest Indiana

  Western Kentucky

  Southeast Missouri

  Western Tennessee



* Effective this Thursday afternoon and evening from 1235 PM

  until 600 PM CDT.



* Primary threats include...

  Scattered damaging winds and isolated significant gusts to 75

    mph possible

  Scattered large hail and isolated very large hail events to 2

    inches in diameter possible



SUMMARY...Multiple lower-topped supercells should develop within a

cluster of thunderstorms spreading east-southeast across the

Mid-Mississippi into the Lower Ohio Valleys. Large hail and damaging

winds should be the primary hazards.



The severe thunderstorm watch area is approximately along and 60

statute miles east and west of a line from 40 miles east northeast

of Mount Vernon IL to 35 miles east southeast of Jonesboro AR. For a

complete depiction of the watch see the associated watch outline

update (WOUS64 KWNS WOU2).



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 65 knots. A

few cumulonimbi with maximum tops to 400. Mean storm motion vector

29035.



...Grams

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