Severe storms bringing potentially damaging winds were sweeping through the Chicago area late Friday night, as a fast-moving squall line raced through the state. The fast-moving line of storms was capable of producing destructive winds over 70 miles per hour and potential tornadoes,

Eastern Indiana is under a tornado watch until 10 a.m. Scattered parts of central and southern Indiana are under a severe thunder storm warning. Over 50,000 Hoosiers do not have power as strong winds with up to 60 mph gusts rip across Indiana.

It's important to know the difference between a tornado warning and a tornado watch: