Severe Thunderstorm Warning until 03:45PM 
The National Weather Service in Chicago has issued a
* Severe Thunderstorm Warning for... Southwestern Lake County in northeastern Illinois... Northeastern Kane County in northeastern Illinois... Southeastern McHenry County in northeastern Illinois... Northwestern Cook County in northeastern Illinois...
* Until 345 PM CDT.
* At 320 PM CDT, a severe thunderstorm was located over Sleepy Hollow, moving north at 25 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees.
* Locations impacted include... Elgin, Hoffman Estates, Carpentersville, Algonquin, Lake Zurich, Barrington, Sleepy Hollow, East Dundee, Streamwood, Lake In The Hills, Huntley, Hawthorn Woods, Inverness, West Dundee, Gilberts, Hampshire, Lakewood, Oakwood Hills, Tower Lakes and Trout Valley. Including the following interstate... I-90 between mile markers 45 and 61.
* AFFECTED AREAS: MCHENRY, IL ... KANE, IL ... COOK, IL ... LAKE, IL
Instructions:
For your protection move to an interior room on the lowest floor of a building. Continuous cloud to ground lightning is occurring with this storm. 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. Torrential rainfall is occurring with this storm, and may lead to flash flooding. Do not drive your vehicle through flooded roadways.
Address/Location
City of Crystal Lake
100 W Woodstock St
Crystal Lake, IL 60014
Contact
Emergency: 9-1-1
Non-emergencies: 815-356-3620