Snow blanketed parts of the northeast United States yesterday, just days after the biggest storm of the season dumped up to 50 centimeters of snow on the region.

Winter storm warnings were in effect from upstate New York to Maine, where blizzard conditions and deep falls were possible.

Schools around the region delayed or canceled classes yesterday, including in Boston and in New York state, from Albany to areas outside New York City. Nearly all flights in and out of the airport in Manchester, New Hampshire have been canceled. In Maine, the Portland Jetport was closed.

Scattered power outages were reported overnight, and the possibility of strong winds and coastal flooding was a concern.

State officials in New Hampshire and Maine advised motorists to stay off the roads to avoid whiteout conditions.

A number of crashes had been reported since Sunday but there were no reports of large pileups or injuries.

“We just want to remind people to be smart and be safe,” New Hampshire Governor Chris Sununu said, warning residents to watch for children playing in snowbanks who might not be seen by plow drivers.

Lenore Correia, a National Weather Service meteorologist in Taunton, Massachusetts, said: “It’s a big snowstorm, but nothing we haven’t seen before, either.”

Maine state offices were closed yesterday, as was the Statehouse and court system in New Hampshire.

In northern New England, the storm came as welcome news for ski areas, which last year had faced some of the lowest snowfall totals in years.

“It’s the complete opposite of last year in terms of snow,” said Rachael Wilkinson, director of marketing at Shawnee Peak in Bridgton, Maine.

“It’s night and day and everyone is absolutely thrilled.”

In Vermont, Governor Phil Scott declared yesterday to be a “Powder Day,” and he was urging winter weather enthusiasts to be sure to take advantage of the heavy falls.