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WWUS20 KWNS 172310

SEL6

SPC WW 172310

KSZ000-MOZ000-180700-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 346

NWS Storm Prediction Center Norman OK

610 PM CDT Sat Jun 17 2017



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Southern and eastern Kansas

  Western and northern Missouri



* Effective this Saturday night and Sunday morning from 610 PM

  until 200 AM CDT.



* Primary threats include...

  Scattered large hail likely with isolated very large hail events

    to 3 inches in diameter possible

  Scattered damaging wind gusts to 70 mph possible

  A tornado or two possible



SUMMARY...Storms will continue to develop initially along a boundary

that extends from southwest Kansas northeastward into northeast

Kansas and northern Missouri. Very steep lapse rates, strong

buoyancy, and ample deep-layer shear will support the possibility of

supercells capable of very large hail and possibly a tornado. The

potential for damaging winds may increase as storms tend to cluster

this evening and move east-southeastward across the region.



The severe thunderstorm watch area is approximately along and 65

statute miles north and south of a line from 50 miles south of

Kirksville MO to 30 miles southwest of Garden City KS. 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 345...



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

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

few cumulonimbi with maximum tops to 650. Mean storm motion vector

28025.



...Guyer

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