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WWUS20 KWNS 212359

SEL1

SPC WW 212359

KSZ000-MOZ000-NEZ000-220700-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 421

NWS Storm Prediction Center Norman OK

655 PM CDT Fri Jun 21 2019



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  northeastern Kansas

  northern Missouri

  southeastern Nebraska



* Effective this Friday night and Saturday morning from 655 PM

  until 200 AM CDT.



* Primary threats include...

  Scattered large hail and isolated very large hail events to 2

    inches in diameter possible

  Scattered damaging wind gusts to 70 mph possible

  A tornado or two possible



SUMMARY...Strong to severe thunderstorm development is underway

across parts of northeast Kansas, with additional storms likely to

develop east-northeastward along a frontal zone into north central

Missouri through mid to late evening.  Gradually, activity may

consolidate and evolve into an organizing storm cluster which may

pose increasing risk for potentially damaging wind gusts, while

developing eastward and south-southeastward.



The severe thunderstorm watch area is approximately along and 50

statute miles north and south of a line from 15 miles north

northwest of Manhattan KS to 20 miles south of Kirksville MO. For a

complete depiction of the watch see the associated watch outline

update (WOUS64 KWNS WOU1).



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 417...WW 418...WW

419...WW 420...



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

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

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

27030.



...Kerr

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