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WWUS20 KWNS 252016

SEL9

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NDZ000-SDZ000-260300-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 619

NWS Storm Prediction Center Norman OK

320 PM CDT Sun Aug 25 2019



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Central North Dakota

  Central South Dakota



* Effective this Sunday afternoon and evening from 320 PM until

  1000 PM 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...Scattered thunderstorm development is expected this

afternoon into this evening across the central Dakotas.  The storm

environment will initially support supercells capable of producing

large hail, while storms should merge into clusters and line

segments this evening with an attendant threat for damaging gusts.



The severe thunderstorm watch area is approximately along and 70

statute miles east and west of a line from 70 miles northeast of

Minot ND to 65 miles south southwest of Pierre SD. For a complete

depiction of the watch see the associated watch outline update

(WOUS64 KWNS WOU9).



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 60 knots. A

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

30020.



...Thompson

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