Traffic crawls Saturday in Baltimore as a blizzard crippled travel across the Mid-Atlantic. (Karl Merton Ferron / Baltimore Sun)
Workers clear the tarmac at Reagan National Airport, where 16 inches of snow broke a single-day record for December. (Jacquelyn Martin / AP)
People walk across Broad Street in Philadelphia, where a snow emergency was declared as 16 inches fell. (Matt Slocum / AP)
Dan Paulson of Arlington, Va., skis past the Jefferson Memorial in Washington, where more than a foot of snow fell. (Alex Brandon / AP)
More than 200 people showed up for a snowball fight at 14th and U streets in Washington, organized by a Twitter group. (Pablo Martinez Monsivais / AP)
A bus navigates a hill on 13th Street in northwest Washington. (Pablo Martinez Monsivais / AP)
Michael Sims of the National Park Service takes a break from shoveling snow at the Vietnam Veterans Memorial in Washington. (Alex Brandon / AP)
Josh Waldron shovels the roof of his house in Waynesboro, Va. (Norm Shafer / AP)
A pair of Santas run across the street on their way to a bar in Philadelphia. (Matt Rourke / AP)
