Mark L. Fendrick, of Staten Island, tweeted Wednesday night: "My son had just got his power back 2 days ago now along comes this nor'easter and it's out again."
John Miksad, senior vice president of electric operations at Consolidated Edison, the chief utility in New York City, said, "I know everyone's patience is wearing thin."
As the nor'easter closed in, thousands of people in low-lying neighborhoods staggered by the superstorm just over a week ago were urged to clear out. Authorities warned that rain and 60 mph gusts in the evening and overnight could topple trees wrenched loose by Sandy and erase some of the hard-won progress made in restoring power to millions of customers.
"I am waiting for the locusts and pestilence next," New Jersey Gov. Chris Christie said. "We may take a setback in the next 24 hours."
Ahead of the storm, public works crews in New Jersey built up dunes to protect the stripped and battered coast, and new evacuations were ordered in a number of communities already emptied by Sandy. New shelters opened.
In New York City, police went to low-lying neighborhoods with loudspeakers, urging residents to leave. But Mayor Michael Bloomberg didn't issue mandatory evacuations, and many people stayed behind, some because they feared looting, others because they figured whatever happens couldn't be any worse than what they have gone through already.
"We're petrified," said James Alexander, a resident of the hard-hit Rockaways section of Queens. "It's like a sequel to a horror movie."
All construction in New York City was halted a precaution that needed no explanation after a crane collapsed last week in Sandy's high winds and dangled menacingly over the streets of Manhattan. Parks were closed because of the danger of falling trees. A section of the Long Island Expressway was closed in both directions because of icy conditions.
Airlines canceled at least 1,300 U.S. flights in and out of the New York metropolitan area, causing a new round of disruptions that rippled across the country.
The city manager in Long Beach, N.Y., urged the roughly 21,000 people who ignored previous mandatory evacuation orders in the badly damaged barrier-island city to get out.
Forecasters said the nor'easter would bring moderate coastal flooding, with storm surges of about 3 feet possible Wednesday into Thursday far less than the 8 to 14 feet Sandy hurled at the region. The storm's winds were expected to be well below Sandy's, which gusted to 90 mph.
By evening, the storm had created a slushy mess in the streets in the metropolitan area. Eight-foot waves crashed on the beaches in New Jersey, which was lashed with a wintry mix of rain, sleet and snow. The Long Island Rail Road, one of the nation's biggest commuter train systems, suspended all service again after struggling over the past several days to get up and running in Sandy's wake.
The early-afternoon high tide came and went without any reports of serious flooding in New York City, the mayor said. The next high tide was early Thursday. But forecasters said the moment of maximum flood danger may have passed.
Con Ed said that by early evening, the nor'easter knocked out power to at least 11,000 customers, some of whom had just gotten it back. Tens of thousands more were expected to lose power overnight. The Long Island Power Authority said by evening that the number of customers in the dark had risen from 150,000 to more than 198,000.
Similarly, New Jersey utilities reported a few thousand more scattered outages, with some customers complaining that they had just gotten their electricity back in the past two day or two, only to lose it again.
On New York's Staten Island, workers and residents on a washed-out block in Midland Beach continued to pull debris old lawn chairs, stuffed animals, a basketball hoop from their homes, even as the bad weather blew in.
Jane Murphy, a nurse, wondered "How much worse can it get?" as she cleaned the inside of her flooded-out car.
Sandy killed more than 100 people in 10 states, with most of the victims in New York and New Jersey. New York's death toll increased to 41 on Tuesday when a 78-year-old man died of a head injury, suffered when he fell down a wet, sandy stairwell in the dark, authorities said. Long lines persisted at gas stations but were shorter than they were days ago.
At the peak of the outages from Sandy, more than 8.5 million customers lost power. Before the nor'easter hit, that number was down to 675,000, nearly all of them in New Jersey and New York.
The storm could bring repairs to a standstill because of federal safety regulations that prohibit linemen from working in bucket trucks when wind gusts reach 40 mph.
Authorities warned also that trees and limbs broken or weakened by Sandy could fall and that even where repairs have been made, the electrical system is fragile, with some substations fed by only a single power line instead of several.
The nor'easter cut a feed to a substation briefly Wednesday night, knocking out power to 8,000 customers around East Brunswick, N.J.
On Wednesday, a state official said New York Gov. Andrew Cuomo fired his emergency management director for diverting crews to remove a tree from his driveway during Superstorm Sandy. With new storm pending, airlines take no chances
Major airlines are scrapping flights in and out of the New York area ahead of the second significant storm in little more than a week.
United, the world's largest airline, is suspending most service here starting at noon Wednesday due to a winter storm forecast for the region. It warns that bad weather will likely cause more delays and cancellations throughout the Northeast.
American Airlines is shutting down in New York at 3 p.m. Wednesday. It's also stopping flights to and from Philadelphia at noon.
Most other airlines, including Delta Air Lines Inc. and JetBlue Airways Corp., are asking passengers to reschedule their Northeast flights for a later date. They're waiving the usual change fees of up to $150.
Superstorm Sandy last week led to about 24,000 flight cancellations. The latest on Sandy recovery efforts
The latest on the fallout from Superstorm Sandy, which hit the East Coast last week, and a new wintry storm hitting the Northeast.
FORECAST: A strengthening storm moving up the East Coast with snow, sleet, rain and wind gusts as high as 60 mph is expected to spread through the region through Thursday. Moderate coastal flooding possible.
POWER OUTAGES: Nearly 800,000 homes and businesses, mostly in New Jersey and New York, down from a peak of more than 8.5 million. Figures from Sandy have fallen greatly or disappeared but have started rising again in some places because of the new storm.
CONNECTICUT: As much as 8 inches of snow reported through Wednesday night inland. State's largest utility sends line workers and tree trimmers back to work as snow and winds start. Power outages: About 4,000.
MASSACHUSETTS: Up to 4 inches of snow expected in western and central Massachusetts; Cape Cod and neighboring islands under high-wind warning. Outages: 7,700.
NEW JERSEY: Crews push sand back onto beaches to protect areas flooded by Sandy's surge. New evacuations ordered in some communities already emptied by Sandy; new shelters open. Some who just got power back after Sandy lost it in new storm. Outages: 475,000.
NEW YORK: Construction in New York City is halted ahead of rain, sleet and snow. Residents of low-lying neighborhoods are urged, but not ordered, to evacuate. Major airlines scrap flights more than a week after Sandy caused cancellation of more than 20,000. Long Island Rail Road, major commuter route, suspends service. Outages: More than 292,000, tens of thousands of them caused by the new storm.
PENNSYLVANIA: Road and utility crews prepare for windblown snow, freezing rain and 1 to 5 inches of snow, including up to 4 in Philadelphia. Delays and cancellations at Philadelphia airport. Outages: More than 1,000.
RHODE ISLAND: Sandy recovery efforts are suspended as officials brace for new power failures. Outages: 560.
WEST VIRGINIA: Power is slowly being restored after Sandy's heavy snowfall, but full recovery could take months. Schools remained closed in at least two districts. Outages: 18,700.
DEATHS: More than 100; figure has fluctuated as authorities release more information.