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WWUS20 KWNS 252226

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URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 309

NWS Storm Prediction Center Norman OK

525 PM CDT Wed Jul 25 2018



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Eastern Colorado

  Western and central Kansas



* Effective this Wednesday afternoon and Thursday morning from

  525 PM until 100 AM CDT.



* 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...Strong to severe thunderstorms are expected to increase

initially from the Colorado and Kansas border vicinity toward

north-central Kansas, while other storms move across east-central

Colorado. The moderately unstable environment will support

supercells capable of large hail. Storms may eventually cluster as

they progress south/southeastward across the region this evening

with an increasing damaging wind risk.



The severe thunderstorm watch area is approximately along and 95

statute miles north and south of a line from 40 miles north of La

Junta CO to 15 miles east southeast of Russell KS. 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 307...WW 308...



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 500. Mean storm motion vector

34020.



...Guyer

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