Drivers may face delays as repairs to a sinkhole on 17th Street NW near the White House continue.
A spokesman for the Federal Aviation Administration said two drones were spotted near Teterboro Airport, a general aviation facility about 20 miles north of Newark International.
In overriding the mayor's veto, council members overwhelmingly approved decriminalizing fare evasion.
Authorities suggested alternative routes.
Trains are no longer sharing a track on the Red Line.
Temperatures are in the teens, and drivers are advised to allow extra travel time as road conditions may be dangerous.
The agency detailed the impact of the federal government shutdown in a letter to the region's U.S. senators. Average daily ridership is down 16 percent; Metrobus ridership is down 8 percent, General Manager Paul J. Wiedefeld said.
A cruise line spokesman called the stunt "stupid and reckless" and said they are exploring legal action.