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WWUS20 KWNS 100633

SEL4

SPC WW 100633

ILZ000-MOZ000-101100-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 364

NWS Storm Prediction Center Norman OK

135 AM CDT Sat Jul 10 2021



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Southern Illinois

  Southeast Missouri



* Effective this Saturday morning from 135 AM until 600 AM CDT.



* Primary threats include...

  Scattered damaging wind gusts to 70 mph possible

  Scattered large hail events to 1 inch in diameter possible



SUMMARY...A line of intense thunderstorms over east-central Missouri

and central Illinois will push southward through the watch area

overnight.  Locally damaging wind gusts will be possible with these

storms.



The severe thunderstorm watch area is approximately along and 40

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

Bluff MO to 30 miles east of Mount Vernon 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.



&&



OTHER WATCH INFORMATION...CONTINUE...WW 359...WW 360...WW

361...WW 362...WW 363...



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

31035.



...Hart

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