

639 

WWUS20 KWNS 101858

SEL5

SPC WW 101858

ILZ000-MOZ000-110300-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 365

NWS Storm Prediction Center Norman OK

200 PM CDT Sat Jul 10 2021



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Southern Illinois

  East-central and southeast Missouri



* Effective this Saturday afternoon and evening from 200 PM until

  1000 PM CDT.



* Primary threats include...

  Scattered damaging wind gusts to 70 mph likely

  Scattered large hail and isolated very large hail events to 2

    inches in diameter possible

  A tornado or two possible



SUMMARY...Severe thunderstorms are expected to develop and move east

this afternoon and evening with a risk for damaging winds and

isolated large hail.  A tornado or two is also possible.



The severe thunderstorm watch area is approximately along and 70

statute miles north and south of a line from 40 miles west southwest

of Farmington MO to 50 miles east of Mount Vernon IL. For a complete

depiction of the watch see the associated watch outline update

(WOUS64 KWNS WOU5).



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 60 knots. A

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

26035.



...Bunting

