While all of their findings were preliminary, the National Weather Service estimated at least seven tornadoes touched down west of the city of Chicago on Monday evening. Officials said that EF-1 tornadoes touched down in McHenry, Sycamore, and Burlington on Monday afternoon and into the evening hours.

Tornado damage was also reported in communities such as Creston, Malta, DeKalb, Cortland, Maple Park, and others.

Two more tornadoes touched down to the north and to the south of the town of Esmond. Both tornadoes were classified as EF-0 on the Enhanced Fujita Scale.

A tornado with an EF-0 rating is estimated to have three-second wind gusts of 65 to 85 miles per hour, while a tornado with an EF-1 rating is estimated to have three-second gusts of 86 to 110 miles per hour.

An additional two more twisters, classified as EF-U, touched down to the south of Kirkland and in the town of Paw Paw.

The “EF-U” designation is used when a tornado doesn’t produce damage that can be used to determine its wind speed, according to NWS officials.

Below are the best images and videos we found on social media during the weather event.

While there was some property damage, luckily, no one was hurt.