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083 

WWUS20 KWNS 160438

SEL6

SPC WW 160438

NEZ000-WYZ000-161100-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 586

NWS Storm Prediction Center Norman OK

1040 PM MDT Thu Aug 15 2019



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Western Nebraska

  Eastern Wyoming



* Effective this Thursday night and Friday morning from 1040 PM

  until 500 AM MDT.



* Primary threats include...

  Scattered large hail and isolated very large hail events to 2

    inches in diameter possible

  Isolated significant damaging wind gusts to 75 mph possible



SUMMARY...Scattered storms will continue to develop and intensify

through the overnight hours as a seasonally strong mid-level

disturbance approaches the region. The environment will support

southeastward-moving supercells and well-organized clusters capable

of large hail and locally damaging winds.



The severe thunderstorm watch area is approximately along and 55

statute miles north and south of a line from 15 miles west of

Douglas WY to 40 miles east of Alliance NE. For a complete depiction

of the watch see the associated watch outline update (WOUS64 KWNS

WOU6).



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 584...WW 585...



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

2 inches. Extreme turbulence and surface wind gusts to 65 knots. A

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

30025.



...Guyer

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