Nor'easter pummels Northeast with strong winds, heavy snow, torrential rain

The calendar says it's spring, but a nor'easter is pounding the Northeast with heavy snow, torrential rains and dangerous winds.

Snow totals so far have reached 18 inches in Tunbridge, Vermont; 15 inches in Madison, New Hampshire; and 16.5 inches in Porter, Maine.

More than 330,000 customers are without power in Maine and another 160,000 have lost power in New Hampshire.

The nor’easter also slammed the Northeast with torrential rains, which wreaked havoc on roads in New York and New Jersey on Wednesday.

Dangerous winds gusts reached 64 mph on Long Island, New York, and in Stamford, Connecticut.

In Armonk, New York, near the New York-Connecticut border, a tree fell on a car Wednesday evening, killing the driver, local police said.

Two people in cars were also killed by downed trees in separate incidents near Philadelphia, according to Philadelphia ABC station WPVI.

Winter storm warnings and winter weather advisories remain in effect Thursday afternoon in parts of upstate New York, Vermont, New Hampshire and Maine, where more snow is expected.

Maine will see the highest totals -- especially in the mountain areas north and west of the Interstate 95 corridor -- where an additional 1 to 2 feet of snow is possible.

Coastal flooding is still a threat in the Mid-Atlantic through Thursday night.

ABC News' Shawnie Caslin-Martucci contributed to this report.