

747 

WWUS20 KWNS 132223

SEL5

SPC WW 132223

IAZ000-KSZ000-NEZ000-140600-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 325

NWS Storm Prediction Center Norman OK

525 PM CDT Tue Jun 13 2017



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Extreme western Iowa

  North-central Kansas

  Eastern Nebraska



* Effective this Tuesday afternoon and Wednesday morning from 525

  PM until 100 AM CDT.



* Primary threats include...

  Scattered large hail and isolated very large hail events to 2

    inches in diameter possible

  Isolated damaging wind gusts to 70 mph possible

  A tornado or two possible



SUMMARY...Multiple episodes of thunderstorms are expected to affect

the watch area through this evening, moving rapidly northeastward

through a favorably moist and unstable air mass.  Damaging winds and

hail are likely, and even with likely clustered mode by that time, a

tornado cannot be ruled out in the relatively moist air mass of

eastern Nebraska.



The severe thunderstorm watch area is approximately along and 60

statute miles either side of a line from 35 miles south of Russell

KS to 30 miles northeast of Norfolk NE. For a complete depiction of

the watch see the associated watch outline update (WOUS64 KWNS

WOU5).



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 323...WW 324...



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 600. Mean storm motion vector

22035.



...Edwards

