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190 

WWUS20 KWNS 152007

SEL3

SPC WW 152007

MNZ000-SDZ000-160200-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 583

NWS Storm Prediction Center Norman OK

310 PM CDT Thu Aug 15 2019



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Far west-central Minnesota

  Central and eastern South Dakota



* Effective this Thursday afternoon and evening from 310 PM until

  900 PM CDT.



* Primary threats include...

  Scattered damaging winds and isolated significant gusts to 75

    mph possible

  Scattered large hail and isolated very large hail events to 2

    inches in diameter possible



SUMMARY...A mix of discrete cells and clusters should intensify into

early evening in central South Dakota, potentially evolving into a

broader linear cluster that shifts east across eastern South Dakota

into perhaps far western Minnesota.



The severe thunderstorm watch area is approximately along and 75

statute miles north and south of a line from 10 miles northwest of

Pierre SD to 30 miles east of Watertown 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.



&&



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

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

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

27030.



...Grams

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