Snow Storm hits the East Coast in Washington, D.C

An airport employee crosses the tarmac as heavy snow falls at Ronald Reagan National Airport in Arlington, Virginia, January 21, 2014. A strong arctic airmass is moving down the east coast bringing with frigid temperatures and the chance for up to a foot of show in some places. Airlines have already canceled more than 2,900 flights according to the flight-tracking service FlightAware. UPI/Kevin Dietsch