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WWUS20 KWNS 050554

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NEZ000-WYZ000-051200-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 489

NWS Storm Prediction Center Norman OK

1155 PM MDT Thu Jul 4 2019



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Western and Northern Nebraska

  Far Eastern Wyoming



* Effective this Thursday night and Friday morning from 1155 PM

  until 600 AM MDT.



* Primary threats include...

  Scattered large hail and isolated very large hail events to 2.5

    inches in diameter possible

  Scattered damaging wind gusts to 70 mph possible

  A tornado or two possible



SUMMARY...Initially, an isolated supercell will continue to pose a

severe risk into the Nebraska Panhandle early in the overnight, with

other storms expected to develop across northern Nebraska overnight.

Damaging winds and large hail are the primary risks across the

region.



The severe thunderstorm watch area is approximately along and 35

statute miles north and south of a line from 25 miles north

northwest of Torrington WY to 15 miles east of Oneill NE. 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.



&&



OTHER WATCH INFORMATION...CONTINUE...WW 487...WW 488...



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 600. Mean storm motion vector

27025.



...Guyer

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