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WWUS20 KWNS 271834

SEL6

SPC WW 271834

ILZ000-INZ000-KYZ000-MOZ000-TNZ000-280200-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 276

NWS Storm Prediction Center Norman OK

135 PM CDT Sat May 27 2017



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Southern Illinois

  Southern Indiana

  Western and Central Kentucky

  Southeast Missouri

  Northern Tennessee



* Effective this Saturday afternoon and evening from 135 PM until

  900 PM CDT.



* Primary threats include...

  Widespread damaging winds likely with isolated significant gusts

    to 80 mph possible

  Scattered large hail likely with isolated very large hail events

    to 2.5 inches in diameter possible

  A tornado or two possible



SUMMARY...Scattered thunderstorms are forming across the watch area

this afternoon, while other and more intense storms move in from

Missouri.  Large hail and damaging winds are possible with the

biggest storms.  The risk of widespread damaging winds will develop

later today over parts of the area.



The severe thunderstorm watch area is approximately along and 85

statute miles north and south of a line from 45 miles west of Cape

Girardeau MO to 15 miles north of London KY. For a complete

depiction of the watch see the associated watch outline update

(WOUS64 KWNS WOU6).



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...



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

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

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

27035.



...Hart

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