

284 

WWUS20 KWNS 262139

SEL0

SPC WW 262139

WIZ000-LMZ000-270200-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 350

NWS Storm Prediction Center Norman OK

440 PM CDT Sun Aug 26 2018



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  East central and southeastern Wisconsin

  Lake Michigan



* Effective this Sunday afternoon and evening from 440 PM until

  900 PM CDT.



* Primary threats include...

  Scattered damaging wind gusts to 70 mph possible

  Scattered large hail events to 1.5 inches in diameter possible



SUMMARY...A north-south band of storms will continue eastward, with

some intensification possible as the storms interact with the lake

breeze boundary off the west shore of Lake Michigan.  The storm

environment favors organized cluster/bowing segments, and perhaps

some embedded supercells, capable of producing damaging gusts and

large hail for the next few hours.



The severe thunderstorm watch area is approximately along and 30

statute miles east and west of a line from 10 miles west northwest

of Green Bay WI to 25 miles west southwest of Racine WI. For a

complete depiction of the watch see the associated watch outline

update (WOUS64 KWNS WOU0).



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

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

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

27035.



...Thompson

