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WWUS20 KWNS 101953

SEL8

SPC WW 101953

ILZ000-MOZ000-110300-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 428

NWS Storm Prediction Center Norman OK

255 PM CDT Mon Aug 10 2020



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Central Illinois

  East-central and northeast Missouri



* Effective this Monday afternoon and evening from 255 PM until

  1000 PM CDT.



* Primary threats include...

  Scattered damaging wind gusts to 70 mph likely

  Isolated large hail events to 1.5 inches in diameter possible



SUMMARY...Several multicell clusters should develop east from

central and northeast Missouri. These clusters will largely pose a

risk for strong to isolated severe gusts, yielding scattered

damaging winds as they spread into central Illinois through this

evening.



The severe thunderstorm watch area is approximately along and 115

statute miles east and west of a line from 50 miles east southeast

of Jefferson City MO to 35 miles north of Springfield IL. For a

complete depiction of the watch see the associated watch outline

update (WOUS64 KWNS WOU8).



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 426...WW 427...



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

29025.



...Grams

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