Most of U.S. covered with snow after massive winter storms

73 percent of the United States has snow on the ground.

Winter storms and blizzards - A risk to entire continents

Winter storm: Snow and extreme cold to sweep across Midwest and Northeast Friday

Major winter storms bring snow, ice and travel hazards to both US coasts

The Avalanche Risk is High in Much of the Western US. Here's What You Need to Know to Stay Safe - The Wyoming Truth

Arctic air will blast much of U.S. just before Christmas - Los Angeles Times

Treacherous travel expected in much of eastern US - ABC News

Winter Storm In Eastern U.S. Buries Cities, Floods Coast, Kills At Least 18

30.7 inches fell in Philly in the '96 storm, and 20 or more inches in areas inhabited by 38.9 million people

Snow in California mountains piles to rooftops, leaving residents trapped for days - CBS News