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WWUS20 KWNS 280032

SEL3

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SDZ000-280600-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 373

NWS Storm Prediction Center Norman OK

735 PM CDT Tue Jun 27 2017



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Central South Dakota



* Effective this Tuesday night and Wednesday morning from 735 PM

  until 100 AM CDT.



* Primary threats include...

  Scattered damaging winds likely with isolated significant gusts

    to 75 mph possible

  Scattered large hail likely with isolated very large hail events

    to 2.5 inches in diameter possible



SUMMARY...Scattered thunderstorms over southwest South Dakota will

track eastward and across the watch area this evening.  Damaging

wind gusts and large hail will be possible.



The severe thunderstorm watch area is approximately along and 55

statute miles east and west of a line from 35 miles north northeast

of Pierre SD to 50 miles south of Chamberlain SD. For a complete

depiction of the watch see the associated watch outline update

(WOUS64 KWNS WOU3).



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 372...



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

2.5 inches. Extreme turbulence and surface wind gusts to 65 knots. A

few cumulonimbi with maximum tops to 450. Mean storm motion vector

26035.



...Hart

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