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WWUS20 KWNS 290619

SEL9

SPC WW 290619

KSZ000-NEZ000-291500-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 379

NWS Storm Prediction Center Norman OK

120 AM CDT Thu Jun 29 2017



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Northern Kansas

  Extreme south-central Nebraska



* Effective this Thursday morning from 120 AM until 1000 AM CDT.



* Primary threats include...

  Isolated very large hail events to 3 inches in diameter possible

  Isolated damaging wind gusts to 70 mph possible



SUMMARY...Two areas of thunderstorms are expected to offer a threat

for severe hail and isolated damaging wind through midmorning:

1.  Ongoing severe convection over the Kansas/Nebraska border,

expected to spread east-southeastward the next few hours;

2.  An area of storms over northeastern Colorado that may intensify

as it moves into a more moist/unstable air mass in northwestern

Kansas and proceed eastward from there.



The severe thunderstorm watch area is approximately along and 60

statute miles north and south of a line from 25 miles southwest of

Goodland KS to 25 miles east of Manhattan 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.



&&



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 550. Mean storm motion vector

27030.



...Edwards

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