At least three tornadoes struck northwestern Louisiana and at least two tornadoes struck Arkansas, both arising from thunderstorms. USA Today has a great interactive graphic showing how tornadoes form. Heavy rains in connection with the storms flooded roads in Arkansas. In Shreveport, Louisiana, the tornado blew a landmark steeple off of a church, which hit a car, trapping the driver who had to be removed from his vehicle by rescuers. He suffered broken bones, but another driver died when his car hit a tree knocked down by the storms. These tornadoes come as the peak of what has turned out to be a very mild hurricane season is behind us, a sober reminder of the diverse risks we face.