

170 

WWUS20 KWNS 070432

SEL8

SPC WW 070432

ILZ000-WIZ000-LMZ000-071100-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 68

NWS Storm Prediction Center Norman OK

1035 PM CST Mon Mar 6 2017



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Northern and eastern Illinois

  Southeast Wisconsin

  Lake Michigan



* Effective this Monday night and Tuesday morning from 1035 PM

  until 500 AM CST.



* Primary threats include...

  Scattered damaging wind gusts to 70 mph possible

  A tornado or two possible



SUMMARY...A fast-moving squall line will continue to pose a risk for

damaging winds and possibly a brief tornado or two as it races

east-northeastward through the overnight hours.



The severe thunderstorm watch area is approximately along and 40

statute miles east and west of a line from 60 miles north northwest

of Milwaukee WI to 25 miles west southwest of Mattoon IL. For a

complete depiction of the watch see the associated watch outline

update (WOUS64 KWNS WOU8).



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 64...WW 65...WW 66...WW

67...



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

1 inch. Extreme turbulence and surface wind gusts to 60 knots. A few

cumulonimbi with maximum tops to 500. Mean storm motion vector

24050.



...Guyer

