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WWUS20 KWNS 090307

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NEZ000-SDZ000-091000-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 422

NWS Storm Prediction Center Norman OK

1005 PM CDT Sat Aug 8 2020



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  northeast Nebraska

  eastern South Dakota



* Effective this Saturday night and Sunday morning from 1005 PM

  until 500 AM CDT.



* Primary threats include...

  Scattered damaging winds and isolated significant gusts to 80

    mph possible

  Scattered large hail events to 1.5 inches in diameter possible



SUMMARY...Mostly multicell lines of storms capable of damaging wind

and some hail will continue through northern Nebraska and central

through eastern South Dakota tonight.



The severe thunderstorm watch area is approximately along and 100

statute miles east and west of a line from 35 miles northwest of

Aberdeen SD to 40 miles south southwest of Yankton SD. For a

complete depiction of the watch see the associated watch outline

update (WOUS64 KWNS WOU2).



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 421...



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

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

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

24035.



...Dial

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