At least 40 people have been killed, millions are without power and transport across the north-eastern US has been severely disrupted as storm Sandy heads north for Canada.
In New York City, 18 people have been killed and the public transport system remains closed until further notice.
More than 18,000 flights were cancelled, the flight-tracking website FlightAware estimates.
Earlier, Sandy killed nearly 70 people as it hit the Caribbean.
Sandy brought a record storm surge of almost 14ft (4.2m) to central Manhattan, well above the previous record of 10 feet (3m) during Hurricane Donna in 1960, the National Weather Service said.
The storm was causing heavy snowfalls over the Appalachian mountains on Tuesday afternoon. It was expected to turn towards western New York state during the evening before moving into Canada on Wednesday, the forecaster said.
