AP Photo/Billings Gazette, Larry Mayer
Building debris is scattered after a tornado touched down near the corner of Main Street and Lake Elmo Drive in Billings, Mont., Sunday, June 20, 2010.
AP Photo/Billings Gazette, Larry Mayer
Main Street Casino staff members watch a second thunderstorm approach after they just survived a tornado in Billings, Mont., Sunday, June 20, 2010. Buildings were heavily damaged after a tornado touched down near the corner of Main Street and Lake Elmo Drive.
AP Photo/Billings Gazette, Casey Riffe
Miranda Perkins helps her daughter Catelynn, 2, through the flooded street at 6th Avenue South and South 28th Street near South Park after a storm moved through Billings, Mont., Sunday, June 20, 2010.
AP Photo/Billings Gazette, Casey Riffe
Marcus Todd, center, Jose Munguia, right, Alysha Boyer, left, and Tana Munguia clean out the storm drain along 8th Street West, south of Broadwater Avenue, after a storm moved through Billings, Mont., Sunday, June 20, 2010.