A line of thunderstorms hammered parts of the Riverbend on Saturday afternoon, leaving thousands without power for several hours, thanks to downed power lines.  High wind and heavy rain were the key highlights of the storm which left trees down and backyards flooded.

One man was injured when a tree fell on him in the 3300 block of Leo Street in Alton.  The man was apparently working in his yard when the storm rolled in and a wind gust knocked down a tree on top of him.  He was taken to a local hospital for treatment.  Trees also feel across streets and partially onto homes in Alton and Cottage Hills.   Power was also knocked out to several downtown Alton bars and restaurants where hundreds of people had gathered to watch the Kentucky Derby and listen to music.  There are still several hundred Ameren customers without power in Alton this morning, as well as scattered outages in Godfrey, East Alton and Edwardsville.  The outage also knocked the Big Z AM signal off the air into part of last evening.