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WWUS20 KWNS 161947

SEL3

SPC WW 161947

KSZ000-MOZ000-OKZ000-170300-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 453

NWS Storm Prediction Center Norman OK

245 PM CDT Wed Aug 16 2017



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  South Central and Eastern Kansas

  Extreme Western Missouri

  North Central and Northeast Oklahoma



* Effective this Wednesday afternoon and evening from 245 PM

  until 1000 PM CDT.



* Primary threats include...

  Scattered large hail likely with isolated very large hail events

    to 2.5 inches in diameter possible

  Scattered damaging wind gusts to 70 mph likely

  A tornado or two possible



SUMMARY...Storms are expected to develop and intensify this

afternoon along a southeastward moving cold front over Kansas,

enhanced by a remnant outflow boundary over southeast Kansas.

Activity is expected to spread east and southeast through the

evening with stronger storms capable of producing large hail and

damaging winds.  A brief tornado may also be possible over southern

Kansas during the later afternoon.



The severe thunderstorm watch area is approximately along and 65

statute miles north and south of a line from 45 miles north

northwest of Enid OK to 40 miles southeast of Olathe KS. For a

complete depiction of the watch see the associated watch outline

update (WOUS64 KWNS WOU3).



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

2.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A

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

25025.



...Weiss

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