Snow began to fall around the Northeast on Friday morning at the start of what's predicted to be a massive, possibly historic blizzard, and residents scurried to stock up on food and supplies ahead of the storm poised to dump up to 2 to 3 feet of snow from New York City to Boston and beyond.
Even before the first snowflake had fallen, Boston, Providence, R.I., Hartford, Conn., and other towns and cities in New England and upstate New York towns canceled school Friday, and airlines scratched more than 3,700 flights through Saturday, with the disruptions from the blizzard certain to ripple across the U.S.
"This one doesn't come along every day. This is going to be a dangerous winter storm," said Alan Dunham, meteorologist for the National Weather Service in Taunton, Mass.
The snow began falling Friday morning in some areas, with the heaviest amounts falling at night and into Saturday. Wind gusts could reach 75 mph. Widespread power failures were feared, along with flooding in coastal areas still recovering from Superstorm Sandy in October.
Boston could 2 to 3 feet of snow, while New York City was expecting 10 to 12 inches. Mayor Michael Bloomberg said plows and 250,000 tons of salt were being put on standby.
To the south, Philadelphia was looking at a possible 2 to 5 inches.
Amtrak said its Northeast trains will stop running Friday afternoon.
Airlines have cancelled 3,775 flights in preparation for the Northeast storm, according to airline tracking website FlightAware.
At New York City's three main airports, most domestic carriers planned to cease operations between 2 p.m. and 5 p.m. Friday, resuming after noon on Saturday, FlightAware said.
At Boston's Logan and other New England airports, most airlines were to cease operations between noon and 4 p.m., and would restart Saturday afternoon.
Blizzard warnings were posted for parts of New Jersey and New York's Long Island, as well as portions of Massachusetts, Rhode Island and Connecticut, including Hartford, New Haven, Conn., and Providence. The warnings extended into New Hampshire and Maine.
In New England, it could prove to be among the top 10 snowstorms in history, and perhaps even break Boston's record of 27.6 inches, set in 2003, the National Weather Service said. The last major snowfall in southern New England was well over a year ago - the Halloween storm of 2011.