Fresh snow fell on Thursday in snowbound western New York, where longtime residents described the blast of winter weather as the worst in memory.
At least eight deaths were blamed on the storm.
Some areas of New York state along the Great Lakes had nearly 2 feet (60 cm) of new snow on top of accumulations as high as 5 feet (1.5 metres) from earlier in the week.
The National Weather Service said parts of the region could expect 3 feet (9O cm) more snow before skies clear on Friday.
"I've been in a lot of snowstorms, and this is by far the worst. There's been more snow in the shortest period of time I've ever seen," said Chuck Specht, 58, who reported 7 feet (2.1 metres) of snow at his house in Marilla, New York.
Specht was trying unsuccessfully to clear a patch in the snow for the family dog to relieve itself, he said.
"Even for seasoned veterans, this is getting to be a bit much to handle," he said.
The Buffalo Bills will not play their home game against the New York Jets on Sunday because of public safety concerns, the National Football League said. The NFL said it was in the process of rescheduling and relocating the game.
The Bills had earlier offered to pay $10 an hour plus game tickets to people willing to shovel what it said were 220,000 tons of snow in its stadium.