Updated

Morning commutes were expected to be messy at best in much of the Northeast on Thursday after the second major storm in less than a week socked the region with heavy, wet snow.

As the storm moved up the East Coast overnight Wednesday and into early Thursday, it also knocked out power to hundreds of thousands of homes and businesses from Pennsylvania to the New England states.

Some places saw more than 2 feet of snow by late Wednesday. Montville, N.J., got more than 26 inches from the nor'easter. North Adams, Mass., registered 24 inches and Sloatsburg, N.Y., got 26 inches.

Major cities along the Interstate 95 corridor saw much less. Philadelphia International Airport recorded about 6 inches, while New York City's Central Park saw less than 3 inches.

The storm made traveling treacherous. Thousands of flights across the region were canceled.

Gov. Dannel Malloy of Connecticut advised people to stay off the roads and closed state offices midday. In New Jersey and Pennsylvania, Govs. Phil Murphy and Tom Wolf declared a state of emergency.

In New York, where certain parts reported 26 inches of snow, at least one person had been killed.

Amtrak suspended service between New York City and Boston until at least 10 a.m. Thursday. New York City's Metro-North commuter railroad suspended service on lines connecting the city to its northern suburbs and Connecticut because of downed trees. It was not immediately known when service would be restored.

"It's kind of awful," said New York University student Alessa Raiford, who put two layers of clothing on a pug named Jengo before taking him for a walk in slushy, sloppy Manhattan, where rain gave way to wet snow in the afternoon. "I'd rather that it be full-on snowing than rain and slush. It just makes it difficult."

The storm was not predicted to be as severe as the nor'easter that toppled trees, inundated coastal communities and caused more than 2 million power outages from Virginia to Maine last Friday.

It still proved to be a headache for the tens of thousands of customers still in the dark from the earlier storm — and for the crews trying to restore power to them.

In New Jersey, the state's major utilities reported more than 300,000 customers without power by late Wednesday, with some left over from last week. Utilities across the Northeast also reported tens of thousands of homes and businesses without electricity.

The National Weather Service issued a winter storm warning through Thursday for most of New England as the storm continued to make its way through.

In Worcester, Massachusetts, public works crews late Wednesday had a hard time keeping up with the snow.

"It's heavy. Well, it was so warm earlier that it just melted when it hit the ground and now it's heavy," said Jesse Nadeau. "It's the heaviest part of the storm right now for the next couple of hours. Heavy and wet."

In North White Plains, New York, 10 people were taken to hospitals with symptoms of carbon monoxide poisoning after running a generator inside a home, police said. All were expected to survive.

In Manchester Township, New Jersey, police said a teacher was struck by lightning while holding an umbrella on bus duty outside a school. The woman felt a tingling sensation but didn't lose consciousness. She was taken to a hospital with minor injuries.

A middle school teacher in Manchester Township, New Jersey was reportedly struck by lightning, the New York Post reported.

“I heard the thunder in New Jersey. It was loud. I thought it was an explosion #thundersnow,” one Twitter user tweeted.

The Associated Press contributed to this report.