Rail services in the US mid-Atlantic remained disrupted during the weekend, operating only underground, as the region faced its biggest blizzard in decades, causing heavy snow and powerful winds.

The record 30 hours of snowfall began on Friday morning, with as much as 3ft of snow in parts of the region. Elkridge recorded the highest with 38.3in of snowfall, Philadelphia with 28.5in and the Virginia town of Howellsville recording 37in.

Washington’s transit system, Metro, closed all but its underground services on Saturday and Sunday.

Amtrak cancelled 18 trains between Washington and New York, and also between Washington and some destinations in the south.

Maryland also reported major disruptions in its Metro Subway system.