The massive storm that started out as Hurricane Sandy slammed into the East Coast and morphed into a huge and problematic system, putting more than 8.4 million homes and businesses in the dark and causing at least 39 deaths in the U.S. Here's a snapshot of what is happening, state by state. The Long Island Sound flooded roads as the storm toppled trees and power lines Three people died, including a man last seen swimming in heavy surf. A winter storm warning was in effect for three southeastern counties. Up to a foot of snow fell at high elevations along the West Virginia border. A boat lies toppled between two flooded houses in the aftermath of superstorm Sandy, Tuesday, Oct. 30, 2012, in Lindenhurst, N.Y. (AP Photo/Jason DeCrow) In western Maryland, up to two feet of snow tied up traffic. Three people were killed, including a man who died when a tree fell on a house in Pasadena. Power outages: About 290,000. Cargo shipping on the Great Lakes was at a standstill because of waves of up to 20 feet. High winds knocked out power to about 79,000 homes and businesses. A construction worker checking on a job site in Lincoln, N.H., was killed in a landslide. Power outages: 164,500, down from a peak of 210,000. A tidal surge sent water into the streets of two northern New Jersey towns, setting off a frantic rescue effort. There were five reported deaths. Power outages: More than 2.5 million. There were 17 storm-related deaths, 10 of them in New York City. Power outages: 2.3 million. Higher elevations in western North Carolina were under a winter storm warning, with more than a foot of snow expected. A woman who was pulled from the Atlantic after abandoning a tall ship was among two dead.