Severe Thunderstorm Warning until 08:00PM Tuesday 
The National Weather Service in Chicago has issued a
* Severe Thunderstorm Warning for... Lake County in northeastern Illinois... Kane County in northeastern Illinois... McHenry County in northeastern Illinois... Northern DuPage County in northeastern Illinois... Northwestern Cook County in northeastern Illinois...
* Until 800 PM CDT.
* At 634 PM CDT, severe thunderstorms were located along a line extending from South Beloit to near Rochelle, moving east at 45 mph. HAZARD...70 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect considerable tree damage. Damage is likely to mobile homes, roofs, and outbuildings.
* Locations impacted include... Chicago, Elgin, Waukegan, Arlington Heights, Evanston, Schaumburg, Palatine, Skokie, Des Plaines, Mount Prospect, Wheaton, Hoffman Estates, Glenview, Elmhurst, Lombard, Buffalo Grove, Bartlett, Crystal Lake, Ohare Airport and Streamwood.
* AFFECTED AREAS: COOK, IL ... DUPAGE, IL ... KANE, IL ... LAKE, IL ... MCHENRY, IL
Instructions:
For your protection move to an interior room on the lowest floor of a building. Large hail and damaging winds and continuous cloud to ground lightning is occurring with these storms. Move indoors immediately. Lightning is one of nature's leading killers. Remember, if you can hear thunder, you are close enough to be struck by lightning.
Address/Location
City of Crystal Lake
100 W Woodstock St
Crystal Lake, IL 60014
Contact
Emergency: 9-1-1
Non-emergencies: 815-356-3620