

566 

WWUS20 KWNS 101944

SEL5

SPC WW 101944

IAZ000-ILZ000-WIZ000-LMZ000-110200-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 445

NWS Storm Prediction Center Norman OK

245 PM CDT Thu Aug 10 2017



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Eastern Iowa

  Northern Illinois

  Southeast Wisconsin

  Lake Michigan



* Effective this Thursday afternoon and evening from 245 PM until

  900 PM CDT.



* Primary threats include...

  Isolated damaging wind gusts to 70 mph possible

  Isolated large hail events to 1.5 inches in diameter possible



SUMMARY...Isolated to scattered storms -- capable of producing

locally damaging winds and large hail -- will continue moving east

across the watch area this afternoon and early this evening.



The severe thunderstorm watch area is approximately along and 55

statute miles east and west of a line from 20 miles west northwest

of Manitowoc WI to 45 miles east southeast of Moline IL. 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 443...WW 444...



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 500. Mean storm motion vector

27035.



...Goss

