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WWUS20 KWNS 030348

SEL7

SPC WW 030348

ILZ000-INZ000-LMZ000-031000-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 67

NWS Storm Prediction Center Norman OK

1050 PM CDT Wed May 2 2018



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Northern Illinois

  Extreme northwestern Indiana

  Lake Michigan



* Effective this Wednesday night and Thursday morning from 1050

  PM until 500 AM CDT.



* Primary threats include...

  Isolated damaging wind gusts to 70 mph possible

  Isolated large hail events to 1.5 inches in diameter possible



SUMMARY...Severe potential will persist for a few more hours across

the region before gradually diminishing -- mainly in the form of

hail, but with isolated damaging gusts also still possible.



The severe thunderstorm watch area is approximately along and 60

statute miles north and south of a line from 40 miles west northwest

of Peoria IL to 15 miles south southeast of Valparaiso IN. For a

complete depiction of the watch see the associated watch outline

update (WOUS64 KWNS WOU7).



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 63...WW 64...WW 65...WW

66...



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 26030.





...Edwards

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