Chicago quiet severe season took off with a rousing bang this morning as severe thunderstorms raced across the north and northwest suburbs
12:20PM: Here are a few hail reports
1.75″ Crystal Lake
1.50″ Buffalo Grove
1.00″ Lake Zurich
1.00″ Hoffman Estates
0.75″ Arlington Heights
0.75″ Vernon Hills
In addition, wind damage was reported in the Marengo area about 10:25 am.
Damage in Marengo included: shingles peeled off roofs, large grain augers ripped from bins, irrigation systems blown over, barns blown down, branch embedded in side of a house.
12:00PM: A compact line of thunderstorms that produced penny to egg sized hail over some of Chicago’s northern suburbs has moved out over Lake Michigan. All warnings have been cancelled or expired. A few thunderstorms could re-develop later this afternoon, once again over the northern suburbs.
11:00AM: Severe Thunderstorm Warning for some of Chicago’s northern suburbs until Noon. The warning includes McHenry, Lake, northern Kane and far northern Cook County. Large and damaging hail is the main threat with this storm. This storm is also producing a tremendous amount of lightning.
10:02AM: One inch, or quarter sized hail was reported at the Rockford Airport at 9:58. There is a report of some broken glass from hail just south of Rockford. If you live in McHenry, Lake or far northern Cook County, it’s time to put the car in the garage (if that’s an option).
9:40AM: Thunderstorms developing along a warm front are expected to impact some of Chicago’s northern suburbs late this morning. A few of the stronger cells will be capable of producing 1″ hail and wind gusts of 50 to 60mph.
The best chance of rain between 10AM and 1PM will be over McHenry, Lake (IL), northern DeKalb, northern Kane, and far northwest Cook County . Areas from the city southward should stay dry.
BELOW: Snapshot of radar imagery and lightning detection earlier this morning (9:40AM)