A time-lapse video shows how quickly the Chicago skyline disappeared as the wall of dust blew through. "This looks like a bad thunderstorm coming through, but you can tell that it's just not a ...

In Chicago, videos captured the skyline disappearing behind a cloud of dust that moved across the city around 6:45 p.m. Stream NBC 5 for free, 24/7, wherever you are. Visibility dropped significantly.