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WWUS20 KWNS 132034

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URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 366

NWS Storm Prediction Center Norman OK

335 PM CDT Mon Jul 13 2020



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Eastern Colorado

  Western Kansas

  Western and central Nebraska



* Effective this Monday afternoon from 335 PM until Midnight CDT.



* Primary threats include...

  Scattered damaging winds and isolated significant gusts to 80

    mph likely

  Scattered large hail and isolated very large hail events to 3

    inches in diameter possible



SUMMARY...Thunderstorms developing and organizing off the mountains

and foothills initially, along with additional storms to their east,

should intensify to severe levels through the remainder of the

afternoon into evening.  Large to very large hail and severe gusts

are possible.  One or two dominant bands or clusters are expected to

evolve from this activity and sweep eastward over the watch area,

with severe winds (some gusts potentially reaching 65+ kt or

hurricane force).



The severe thunderstorm watch area is approximately along and 105

statute miles east and west of a line from 20 miles south of

Springfield CO to 25 miles west northwest of Valentine 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.



&&



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

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

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

27035.



...Edwards

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