SLIDESHOW: Tropical Storm Allison, 10 years later
Credit: AP
After losing electricity and backup generators due to flooding from Tropical Storm Allison, doctors and nurses at Herman Hospital evacuate a critically ill patient down powerless escalator stairs in Houston, in a Saturday, June 9, 2001 file photo. Officials of Houston hospitals say that as a result of the 2001 disaster, their institutions are in better shape to face Hurricane Rita. (AP Photo/Michael Stravato, File)