Storm Jonas dumped up to 90cm of snow along North America's East Coast
Twenty-nine people are dead after the hurricane-force blizzard dubbed 'Snowzilla' crippled the US East Coast.
Millions of Americans are shovelling out after Winter Storm Jonas, which brought Washington DC and New York to a standstill.
It dumped as much as 90cm of snow and stranded tens of thousands of travellers.
Central Park saw 68.1cm of snow, the second-highest since 1869, narrowly missing the previous record set in 2006.
Though the storm has passed, authorities have asked people to stay off the streets as crews plough impassable roads.
Four people died while shovelling snow in Queens, Delaware and Staten Island and two died of hypothermia in Virginia.
Most of the weather-related deaths resulted from car crashes.
The weather system, powered by winds that reached 120 km/h, with thunder and lightning, dropped snow from the Gulf Coast to New England.
Parts of the nation's capital were shrouded in 76.2cm of the stuff.
The heaviest snowfall - 101cm - was recorded near Harpers Ferry, West Virginia.
In the Carolinas, utilities reported about 50,000 customers without power on Sunday, while more than 20,000 still had no electricity in New Jersey.
Reagan and Dulles airports in the Washington DC area remained shut on Sunday and flight services were limited in the New York region.
About 3,500 flights were cancelled on Sunday, with more than 800 already cancelled for Monday, said FlightAware.com.
All mass transit in Washington was to stay shut on Sunday.
Coastal Delaware, New Jersey and Maryland grappled with flooding and some householders were evacuated. New York, Baltimore and Delaware lifted travel bans on Sunday morning.
Andrew Cuomo, the Governor of New York, who declared a state of emergency along with 10 other governors, said the storm had been "fast and furious".
New York City's travel ban has now been lifted, but the Governor is cautioning people to only travel if it is absolutely essential.
In North Carolina, a man whose car had slid off an icy road was arrested on charges of killing a motorist who stopped to help.
In Kentucky, Pennsylvania and West Virginia, drivers were marooned for hours on snowy highways.