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WWUS20 KWNS 072058

SEL2

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COZ000-KSZ000-OKZ000-TXZ000-080200-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 412

NWS Storm Prediction Center Norman OK

400 PM CDT Sat Aug 7 2021



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Extreme east central and southeastern Colorado

  Western Kansas

  The Oklahoma Panhandle

  The northern Texas Panhandle



* Effective this Saturday afternoon and evening from 400 PM until

  900 PM CDT.



* Primary threats include...

  Scattered damaging winds and isolated significant gusts to 75

    mph possible

  Isolated very large hail events to 2 inches in diameter possible



SUMMARY...High-based thunderstorm development is underway along and

ahead of a cold front moving southeastward across eastern Colorado.

The storm environment ahead of the front will favor a mix of

supercells and multicell clusters capable of producing severe

outflow winds up to 75 mph, as well as isolated large hail of 1 to 2

inch diameter through this evening.



The severe thunderstorm watch area is approximately along and 60

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

of Borger TX to 85 miles north of Garden City KS. For a complete

depiction of the watch see the associated watch outline update

(WOUS64 KWNS WOU2).



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

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

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

27025.



...Thompson

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