A house is trapped under a tree that toppled from strong winds, Thursday, Oct. 17, 2019, in Danvers, Mass. (Nic Antaya/The Boston Globe via AP)
A house is trapped under a tree that toppled from strong winds, Thursday, Oct. 17, 2019, in Danvers, Mass. (Nic Antaya/The Boston Globe via AP) Credit: Nic Antaya for The Boston Globe

BOSTON — A record-breaking autumn storm plunged hundreds of thousands of people into the dark, toppled trees, canceled schools and delayed trains in the Northeast, while persistent winds Thursday hampered efforts to clean up and restore power.

Winds gusted to as high as 90 mph on Cape Cod, where about 200,000 residents lost power.

The storm left nearly 200,000 people without power in Maine, too. Heavy rain combined with 60 mph wind gusts knocked down trees and power lines, the Maine Emergency Management Agency said, advising residents to look for hazards on Thursday because many roads were unsafe.

In Hampshire County, damage was widespread and hundreds lost power.

In Northampton, fallen tree branches brought wires down on Jackson Street, and Jackson Street Elementary School was closed for the day. Scattered trees were down across the city, police officer David Netto said, but the Jackson Street closure was the most pressing problem.

National Grid reported 60 customers still without power in the city as of 6 p.m.

In Amherst, Wildwood Elementary School was closed for the day due to loss of power, according to Amherst Police.

Parts of East Pleasant Street, Station Road and East Leverett Road were blocked by downed trees. Eversource reported 144 customers without power in the morning.

In Easthampton, Loudville Road between West Street and Torrey Street was impassable, Easthampton Police said on Facebook, and 45 Eversource customers had no power Thursday morning.

Sections of several roads in Southampton were closed by storm damage, and Hampshire Regional School District was closed for the day. The main police phone line was also out of service for a time.

Eversource reported 306 customers in Southampton without power just before 10 a.m., but power was restored to all by 6 p.m., according to the utility.

Storm damage also closed roads in Hatfield, Granby and Belchertown. Dozens lost power in numerous other area towns, but most had electricity back by 6 p.m.

In Portland, Maine, the atmospheric pressure at sea level — an indicator of the strength of a storm — was the lowest ever recorded in October, said William Watson, a meteorologist with the National Weather Service in Maine.

Nine boats were tossed ashore in Rockland, Maine, and a pier suffered some damage, said Sarah Flink, executive director of Cruise Maine.

The nor’easter formed off New Jersey, strengthening as it traveled north. New York authorities said a wind-driven fire destroyed three houses in the Fire Island hamlet of Ocean Bay Park early Thursday. No injuries were reported.

Train delays, power outages and school cancellations were reported throughout the region Thursday morning. Leaves and debris that littered roads created a slippery traffic hazard for commuters.

Kim Buttrick, a meteorologist with the National Weather Service in Massachusetts, said the storm system met the definition of “bombogenesis.”

Storm intensity is measured by central pressure— the lower the pressure, the stronger it is. A storm is considered a “bomb” when the pressure drops rapidly.

“That’s why we ended up with strong, sustained winds and wind gusts,” Buttrick said. “It’s an indicator of an extremely powerful storm and not something to ignore.”

Most areas saw rainfall totals of 1 to 3 inches, though some areas of southern New England got about 4 inches.

In New Hampshire, about 100 school districts reported closings and delays Thursday morning due to no electricity or downed trees and powerlines. A wind gust of 128 mph was reported on Mount Washington, the Northeast’s highest peak, according to the National Weather Service.