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WWUS20 KWNS 272210

SEL0

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ILZ000-INZ000-KYZ000-MOZ000-TNZ000-280500-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 280

NWS Storm Prediction Center Norman OK

515 PM CDT Sat May 27 2017



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Southern Illinois

  Southwest Indiana

  Western and south-central Kentucky

  Far southeast Missouri

  Western and middle Tennessee



* Effective this Saturday afternoon from 515 PM until Midnight

  CDT.



...THIS IS A PARTICULARLY DANGEROUS SITUATION...



* Primary threats include...

  Widespread damaging winds expected with scattered significant

    gusts to 80 mph likely

  Scattered large hail and isolated very large hail events to 2

    inches in diameter possible

  A few tornadoes possible



SUMMARY...A very fast-moving line of convection will continue to

pose a risk for widespread wind damage as it races

east-southeastward through the evening hours. A few tornadoes and

hail will also be possible with the fast-moving squall line and/or

other line-preceding storms.



The severe thunderstorm watch area is approximately along and 70

statute miles north and south of a line from 30 miles west northwest

of Cape Girardeau MO to 55 miles east southeast of Bowling Green KY.

For a complete depiction of the watch see the associated watch

outline update (WOUS64 KWNS WOU0).



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 275...WW 276...WW

277...WW 278...WW 279...



AVIATION...A few severe thunderstorms with hail surface and aloft to

2 inches. Extreme turbulence and surface wind gusts to 70 knots. A

few cumulonimbi with maximum tops to 600. Mean storm motion vector

29045.



...Guyer

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