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WWUS20 KWNS 082253

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URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 164

NWS Storm Prediction Center Norman OK

555 PM CDT Fri Jun 8 2018



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Northern Nebraska

  South Central South Dakota



* Effective this Friday afternoon and Saturday morning from 555

  PM until 100 AM CDT.



* Primary threats include...

  Scattered large hail likely with isolated very large hail events

    to 2.5 inches in diameter possible

  Scattered damaging wind gusts to 70 mph likely

  A tornado or two possible



SUMMARY...Thunderstorms will increase in coverage and intensity

across the watch area this evening, posing a risk of damaging winds

and large hail.  An isolated tornado is also possible early this

evening.



The severe thunderstorm watch area is approximately along and 75

statute miles east and west of a line from 50 miles east southeast

of Mullen NE to 45 miles northwest of Chamberlain SD. For a complete

depiction of the watch see the associated watch outline update

(WOUS64 KWNS WOU4).



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 163...



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

2.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A

few cumulonimbi with maximum tops to 550. Mean storm motion vector

28030.



...Hart

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