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WWUS20 KWNS 270507

SEL7

SPC WW 270507

NDZ000-SDZ000-271200-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 227

NWS Storm Prediction Center Norman OK

1110 PM MDT Tue Jun 26 2018



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Extreme south-central North Dakota

  Western and central South Dakota



* Effective this Tuesday night and Wednesday morning from 1110 PM

  until 600 AM MDT.



* Primary threats include...

  Isolated damaging wind gusts to 70 mph possible

  Isolated large hail events to 1.5 inches in diameter possible



SUMMARY...An increasingly organized complex of thunderstorms is

expected to pose a primary damaging-wind threat, with isolated large

hail, as it crosses parts of the Dakotas from northwest-southeast

through the pre-dawn hours.



The severe thunderstorm watch area is approximately along and 65

statute miles either side of a line from 40 miles south southwest of

Buffalo SD to 40 miles southeast of Mobridge SD. For a complete

depiction of the watch see the associated watch outline update

(WOUS64 KWNS WOU7).



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.



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