Massive winter storm across the U.S. brings ice, frigid temperatures, and widespread power outages

A massive winter storm dumped sleet, freezing rain, and snow across much of the U.S. on Sunday, bringing subzero temperatures and paralyzing air and road traffic. Power lines were draped in ice, and hundreds of thousands of people in the Southeast were left without electricity.

The ice and snowfall were expected to continue into Monday in much of the country, followed by very low temperatures, which could cause “dangerous travel and infrastructure impacts” to linger for several days, the National Weather Service said.

Heavy snow was forecast from the Ohio Valley to the Northeast, while “catastrophic ice accumulation” threatened from the Lower Mississippi Valley to the Mid-Atlantic and Southeast.

“It is a unique storm in the sense that it is so widespread,” weather service meteorologist Allison Santorelli said in a phone interview. “It was affecting areas all the way from New Mexico, Texas, all the way into New England, so we’re talking like a 2,000-mile spread.”

President Donald Trump had approved emergency declarations for at least a dozen states by Saturday, with more expected to come. The Federal Emergency Management Agency prepositioned commodities, staff, and search and rescue teams in numerous states, Homeland Security Secretary Kristi Noem said.

New York Gov. Kathy Hochul said the state was bracing for the longest cold stretch and highest snow totals it has seen in years. Communities near the Canadian border have already seen record-breaking subzero temperatures, with Watertown registering minus 34 degrees Fahrenheit and Copenhagen minus 49 F, she said.

“An Arctic siege has taken over our state,” Hochul said. “It is brutal, it is bone chilling, and it is dangerous.”

As of Sunday morning, about 213 million people were under some sort of winter weather warning, Santorelli said. The number of customers without power topped 900,000, according to poweroutage.us, and the number was rising.

Tennessee was hardest hit with nearly 325,000 customers out, and Texas, Louisiana, and Mississippi all had more than 100,000 customers in the dark. Tens of thousands of homes and businesses were without power in Kentucky, Georgia, Alabama, and West Virginia.

Some 11,000 flights had already been canceled Sunday and more than 13,000 have been delayed, according to the flight tracker flightaware.com. Airports in Philadelphia, Washington, Baltimore, North Carolina, New York, and New Jersey were hit especially hard.

At Philadelphia International Airport, inside displays registered scores of canceled flights and few vehicles could be seen arriving Sunday morning. At Reagan National in Washington, virtually all flights were canceled.

Even once the ice and snow stop falling, the danger will continue, Santorelli warned.

“Behind the storm it’s just going to get bitterly cold across basically the entirety of the eastern two-thirds of the nation, east of the Rockies,” she said. That means the ice and snow won’t melt as fast, which could hinder some efforts to restore power and other infrastructure.

Along the Gulf Coast, temperatures were balmy Sunday, hitting the high 60s and low 70s, but thermometers were expected to drop into the high 20s and low 30s there by Monday morning. The National Weather Service warned of damaging winds and a slight risk of severe storms and possibly even a brief tornado.

In New York City, Mayor Zohran Mamdani said at least five people died as temperatures plunged Saturday before the snows arrived in earnest.

“While it’s still too early to determine the causes of death, it is a reminder that every year New Yorkers succumb to the cold,” he wrote on X.

The Democrat also announced that Monday would be a remote learning day for students in the nation’s largest school system. Other officials across the affected areas also announced that school would be canceled or held remotely Monday.

In Corinth, Miss., where power outages were widespread, Caterpillar told employees at its remanufacturing site to stay home Monday and Tuesday.

“May God have mercy on Corinth, MS! ... The sound of the trees snapping, exploding & falling through the night have been unnerving to say the least,” resident Kathy Ragan said on Facebook.

University of Georgia sophomore Eden England said there was a thin layer of ice on the ground of the campus in Athens and a mist fell as she walked with friends from the campus dining hall to her residence hall.

“It is definitely a little deserted but plenty of people chose to stay on campus,” England said.

Nashville and the surrounding area saw ice accumulations of half an inch or more, with icicles hanging from power lines and overburdened tree limbs crashing to the ground.

In Oxford, Miss., police on Sunday morning used social media to tell residents to stay home as the danger of being outside was too great. Local utility crews were also pulled from their jobs during the overnight hours.

“Due to life-threatening conditions, Oxford Utilities has made the difficult decision to pull our crews off the road for the night,” the utility company posted on Facebook early Sunday. “Trees are actively snapping and falling around our linemen while they are in the bucket trucks.”

Tippah Electric Power in Mississippi said there was “catastrophic damage” and that it could be “weeks instead of days” to restore everyone.

The Tennessee Valley Authority provides power to some utilities across the region, and spokesperson Scott Brooks said the bulk power system remains stable but overnight icing had caused power interruptions in north Mississippi, north Alabama, southern middle Tennessee, and the Knoxville, Tenn., area.

Icy roads made travel dangerous in north Georgia, where the Cherokee County Sheriff’s office posted on Facebook, “You know it’s bad when Waffle House is closed!!!” along with a photo of a shuttered restaurant. Whether the chain’s restaurants are open — known as the Waffle House Index — has become an informal way to gauge the severity of weather disasters across the South.