

769 

WWUS20 KWNS 190217

SEL2

SPC WW 190217

ILZ000-190900-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 282

NWS Storm Prediction Center Norman OK

920 PM CDT Fri Jun 18 2021



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Central and Eastern Illinois



* Effective this Friday night and Saturday morning from 920 PM

  until 400 AM CDT.



* Primary threats include...

  Scattered large hail likely with isolated very large hail events

    to 2 inches in diameter possible

  Scattered damaging wind gusts to 70 mph likely



SUMMARY...Strong to severe thunderstorms are expected to develop

this evening across central to east-central/southeast Illinois, with

additional storms also potentially moving into the region late

tonight from the west. Large hail and damaging winds can be expected

with the strongest storms given the degree of instability and

moderately strong belt of west-northwesterly winds aloft.



The severe thunderstorm watch area is approximately along and 60

statute miles north and south of a line from 50 miles west northwest

of Springfield IL to 40 miles east of Mattoon IL. 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.



&&



OTHER WATCH INFORMATION...CONTINUE...WW 279...WW 280...WW 281...



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 600. Mean storm motion vector

29025.



...Guyer

