WEATHERWeather events that cost at least $1 billion in damages in 2015A large tornado passes west of the city of Halstead, Kan., May 6, 2015.Wichita Eagle Via Getty ImagesNational Park Service workers clear the stairs of snow around the Lincoln Memorial on Feb. 2, 2015.Jack Gruber, USA TODAYA Wal-Mart is submerged after the San Marcos River flooded in San Marcos, TX May 24, 2015. Record rainfall was wreaking havoc across a swath of the U.S. Midwest.Rodolfo Gonzalez, APRoberto Salas and Lewis Sternhagen check a flooded car in Houston, May 26, 2015.Marie D. De Jesus, APJeanni Adame rides in her boat as she checks on neighbors she wants to evacuate near Summerville, S.C. Oct. 5, 2015.Mic Smith, APMatt Muraski joins hundreds of volunteers at River Des Peres Park in St. Louis Dec. 29, 2015, to fill sandbags as part of the Street and Parks Departments' effort to hold off flooding.Huy Mach, St. Louis Post-Dispatch Via APThis hotel was damaged in the storm in Oklahoma City, May 6, 2015.Sue Ogrocki, APGary Rink walks behind his home in Coal City, Ill., after a tornado passed through the area June 23, 2015.Charles Rex Arbogast, APFarmer Gino Celli climbs out of a irrigation canal that is covered in dried salt on a field he farms near Stockton, Calif. Calif. May 18, 2015.Rich Pedroncelli, APPedestrians walk through blowing snow in Boston, Feb. 15, 2015.Michael Dwyer, APA State Division of Forestry air tanker works the Sockeye fire north of Kashwitna Lake June 14, 2015 near Willow, Alaska. TBill Roth, APA funnel cloud in Rockford, Ill. April 9, 2015.Max Gersh, APFloodwaters surround a farm and plantation near Huger, S.C., Oct. 5, 2015.Mic Smith, APJerry Hardy and wife his Tracey evacuate their family from floodwaters near Conway, S.C., Oct. 5, 2015.Jason Lee, PVolunteers pile sand as they help fill sandbags in St. Louis. Dec. 29, 2015. Flooding across Missouri forced the closure of hundreds of roads and threatened homes.Jeff Roberson, APDerek Smith from Bonne Terre, looks at the shattered rear window of his mom's car that was busted out by hail slightly smaller than a tennis ball that fell from a storm in downtown Farmington, Mo., April 8, 2015.David Carson, APFeatured Weekly Ad