D.C. area digging out from beneath biggest snowfall in years

WASHINGTON (AP) - Officials are warning mid-Atlantic residents to be cautious as they venture out after hunkering down through a snowstorm.

Transportation officials say crews are still clearing roads Friday morning and motorists should watch for ice and flooding.

In Maryland, crews are treating packed-down snow on stretches of Interstate 70 and U.S. Route 29. Icy conditions closed a southbound section of the Baltimore-Washington Parkway.

After suspending Metrobus service overnight during a second wave of snowfall, Metro resumed bus service Friday morning.

MARC and Virginia Railway Express commuter trains are operating on lighter schedules on Friday. Amtrak expects to operate with reduced frequency for some services.

All three major airports in the Washington region are open, but officials warn travelers to check for delays and cancelations, particularly Friday morning.