Polar vortex keeps much of the US in its icy grip

Law enforcement officers stand guard at the Capitol as snow falls ahead of a joint session of Congress to certify the votes from the Electoral College in the presidential election, in Washington, Monday, Jan. 6, 2025. (AP Photo/Matt Rourke)

ANNAPOLIS, Md. (AP) — A huge swath of the U.S. was blasted with ice, snow and wind on Monday as the polar vortex that dipped south over the weekend kept much of the country east of the Rockies in its frigid grip, making many roads treacherous, forcing school closures, and causing widespread power outages and flight cancellations.

The immense storm system brought disruption to areas of the country that usually escape winter's wrath, downing trees in some Southern states, threatening a freeze in Florida and causing people in Dallas to dip deep into their wardrobes for hats and gloves.

Washington, D.C., received heavy snow as President-elect Donald Trump’s victory was certified. Taking advantage of the rare snowstorm in the nation’s capital, revelers engaged in a snowball fight in front of the Washington Monument as flags flew at half-staff in memory of former President Jimmy Carter.

In Kentucky’s biggest city, Louisville, Hugh Ross used his shovel Monday to break sheets of ice that were covering his driveway. Frozen rain fell atop snow that arrived Sunday, which he said “couldn’t have been worse.”

“You've got to break it up first," Ross explained. "If you don’t do that, you’re wasting your time. I did a couple of layers yesterday, so I had to make sure I wasn’t in too bad of shape today.”

Ice and snow blanketed major roads in Kansas, western Nebraska and parts of Indiana, where the National Guard was activated to help stranded motorists. The National Weather Service issued winter storm warnings for Kansas and Missouri, where blizzard conditions brought wind gusts of up to 45 mph (72 kph). The warnings extended to New Jersey into early Tuesday.

At the storied Calumet Farm in central Kentucky, the thoroughbreds were led to their stalls Sunday afternoon before freezing rain turned their pastures into a slick glaze of snow and ice.

“The ice is the worst part,” Eddie Kane, the farm manager, said Monday. “I still haven’t turned them out because it’s still a little bit too dangerous. It’s like an ice skating rink out there in the fields.”

The polar vortex of ultra-cold air usually spins around the North Pole, but it sometimes plunges southward into the U.S., Europe and Asia. Studies show that a fast-warming Arctic is partly to blame for the increasing frequency of the polar vortex extending its grip.

Temperatures plunge

Starting Monday, the eastern two-thirds of the U.S. dealt with bone-chilling cold and wind chills, forecasters said, predicting temperatures ranging from 12 to 25 degrees (7 to 14 degrees Celsius) below normal in many areas.

The Northeast was expected to get several cold days, said Jon Palmer, a weather service meteorologist based in Gray, Maine.

The cold was expected to grip the Eastern Seaboard as far south as Georgia, with temperatures dropping into the low single digits (minus 15 to minus 17 Celsius) in some coastal areas, Palmer said.

Classes canceled

School closings were widespread, with districts in Indiana, Virginia, Kentucky, Missouri and Kansas canceling or delaying the start of classes Monday. Among them was Kentucky’s Jefferson County Public Schools, which canceled classes and other school activities for its nearly 100,000 students.

Classes were also canceled in Maryland, where Gov. Wes Moore declared a state of emergency Sunday and announced that state government offices would also be closed Monday.

Car wrecks abound

At least 600 motorists were stranded in Missouri over the weekend, authorities said. Hundreds of car accidents were reported in Virginia, Indiana, Kansas and Kentucky, where a state trooper was treated for non-life-threatening injuries after his patrol car was hit.

Kentucky Gov. Andy Beshear, who declared a state emergency, said government buildings would be closed Monday.

“We see far too many wrecks out there for people that do not have to be on the roads,” Beshear said.

Kansas saw two deadly crashes over the weekend. Gov. Laura Kelly closed state offices in the Topeka area through Tuesday, as did many school districts.

Virginia State Police responded to at least 430 crashes Sunday and Monday. One man died and more than 20 people were injured. Police said other weather-related fatal accidents occurred Sunday near Charleston, West Virginia, and Monday in Winston-Salem, North Carolina.

By midday Monday, state troopers in Maryland had responded to at least 475 calls for service, including 123 reported crashes and 156 unattended vehicles since 1 a.m., Maryland State Police said on social media.

More snow and ice are expected

In Indiana, snow covered stretches of Interstate 64, Interstate 69 and U.S. Route 41, leading authorities to plead with people to stay home.

“It’s snowing so hard, the snow plows go through and then within a half hour the roadways are completely covered again,” State Police Sgt. Todd Ringle said.

Topeka, Kansas, reported 14.5 inches (nearly 37 centimeters) by about 8 p.m. Sunday, according to the weather service.

Kansas City International Airport received 11 inches (28 centimeters) of snow on Sunday, breaking the previous record for the day of 10.1 inches (26 centimeters) set in 1962, according to the weather service’s office in Kansas City, Missouri. In Kentucky, Louisville recorded 7.7 inches (nearly 20 centimeters) of snow on Sunday, shattering the date's previous record of 3 inches (nearly 8 centimeters) set in 1910.

The Mid-Atlantic region was expected to get another 6 inches to 12 inches (15 to 30 centimeters) of snow on Monday, the weather service's Weather Prediction Center warned. Dangerously cold temperatures were expected to follow, with nighttime lows falling into the single digits through the middle of the week across the Central Plains and into the Mississippi and Ohio valleys.

Thousands without power

Many were in the dark as temperatures plunged. More than 250,000 customers were without power early Monday across Kentucky, Indiana, Virginia, West Virginia, Illinois and Missouri, according to electric utility tracking website PowerOutage.us.

In Virginia’s capital city, a power outage caused a temporary malfunction in the water system, officials said Monday afternoon. Richmond officials asked citizens in the city of more than 200,000 people to refrain from drinking tap water or washing dishes without boiling the water first. The city also asked residents to conserve their water, such as by taking shorter showers.

City officials said they were working nonstop to bring the system back online.

Air and rail travel are snarled

More than 2,500 flights were canceled and at least 6,500 more were delayed nationwide as of Monday morning, according to tracking platform FlightAware. Ronald Reagan Washington National Airport reported that about 58% of arrivals and 70% of departures had been canceled.

A record 8 inches (more than 20 centimeters) of snow fell Sunday at the Cincinnati/Northern Kentucky International Airport, leading to dozens of flight cancellations that lingered into Monday. A few more inches of snow were expected Monday across the Cincinnati area, where car and truck crashes Monday morning shutdown at least two major routes leading into downtown.

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Whittle reported from Portland, Maine. Associated Press journalists Bruce Schreiner in Shelbyville, Kentucky; Dylan Lovan in Louisville, Kentucky; Ben Finley in Norfolk, Virginia; Lea Skene in Baltimore; Kathy McCormack in Concord, New Hampshire; Julie Walker in New York; Sophia Tareen in Chicago; Kimberly Chandler in Montgomery, Alabama; Zeke Miller in Washington, D.C.; John Raby in Charleston, West Virginia; and Summer Ballentine in Columbia, Missouri, contributed.

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Read more of the AP’s climate coverage at http://www.apnews.com/climate-and-environment

A child catches snowflakes with their tongue during El Museo del Barrio's 47th annual Three Kings Day parade, Monday, Jan. 6, 2025, in New York. (AP Photo/Julia Demaree Nikhinson)
A person holds an umbrella as they walk during a winter storm, Monday, Jan. 6, 2025, in Cincinnati. (AP Photo/Joshua A. Bickel)
People engage in a snowball fight as U.S. flags, along the base of the Washington Monument, fly at half-staff in memorial to former President Jimmy Carter, who died at the age of 100, in Washington, Monday, Jan. 6, 2025. (AP Photo/Matt Rourke)
Heavy snow falls as a person walks along U.S. Route 42 in Florence, Ky., Monday, Jan. 6, 2025. (AP Photo/Carolyn Kaster)
National Park Service workers shovel a pathway during a winter storm at the White House, Monday, Jan. 6, 2025, in Washington. (AP Photo/Mark Schiefelbein)
Workers clear the plaza at the Capitol as snow falls ahead of a joint session of Congress to certify the votes from the Electoral College in the presidential election, in Washington, Monday, Jan. 6, 2025. (AP Photo/J. Scott Applewhite)
Snow covers homes during a winter storm, Monday, Jan. 6, 2025, in Cincinnati. (AP Photo/Joshua A. Bickel)
Mackenzie Smith, 9, wins a race against her brother, Landon Smith, 3, and her father, Ryan Smith, as they sled down the hill behind Chautauqua Park during the second day of a winter storm in Owensboro, Ky., on Monday, Jan. 6, 2025. (Alan Warren/The Messenger-Inquirer via AP)
Traffic makes it way on snow-covered U.S. 31 in Carmel, Ind., Monday, Jan. 6, 2025. (AP Photo/Michael Conroy)
A person walks his dog in view of the Capitol during a winter snow storm in Washington, Monday, Jan. 6, 2025. (AP Photo/Matt Rourke)
Vehicles drive along Main Street in Lexington, Ky., on Monday, Jan. 6, 2025. (Ryan C. Hermens/Lexington Herald-Leader via AP)
Snow covers vehicles parked at the Helix Garage in downtown Lexington, Ky., on Monday, Jan. 6, 2025. (Ryan C. Hermens/Lexington Herald-Leader via AP)
A pedestrian makes their way though a tunnel along the snow-covered Monon Trail in Carmel, Ind., Monday, Jan. 6, 2025. (AP Photo/Michael Conroy)
Police from nearby Arlington, Va., arrive at the Capitol to help reinforce the security presence ahead of a joint session of Congress to certify the votes from the Electoral College in the presidential election, in Washington, Monday, Jan. 6, 2025. (AP Photo/J. Scott Applewhite)
A workman clears steps at the Capitol as snow falls ahead of a joint session of Congress to certify the votes from the Electoral College in the presidential election, in Washington, Monday, Jan. 6, 2025. (AP Photo/J. Scott Applewhite)
A runner makes his way through a snow-covered street in Indianapolis, Monday, Jan. 6, 2025. (AP Photo/Michael Conroy)
People ski during a winter snow storm in Washington, Monday, Jan. 6, 2025. (AP Photo/Matt Rourke)
A person walks near the Washington Monument during a winter snow storm in Washington, Monday, Jan. 6, 2025. (AP Photo/Matt Rourke)
A person clears off a car during a winter snow storm in Washington, Monday, Jan. 6, 2025. (AP Photo/Matt Rourke)
Carl Rich uses a snowblower to clear his driveway during a winter storm, Monday, Jan. 6, 2025, in Cincinnati. (AP Photo/Joshua A. Bickel)
Law enforcement officers stand guard at the Capitol as snow falls ahead of a joint session of Congress to certify the votes from the Electoral College in the presidential election, in Washington, Monday, Jan. 6, 2025. (AP Photo/Matt Rourke)
Dave Thomasson uses an electric snowblower to clear his driveway in the Webster Oaks subdivision of Webster Groves, Mo. as residents started clearing a path on Monday, Jan. 6, 2025. (Robert Cohen/St. Louis Post-Dispatch via AP)
A snowplow clears the area as snow blankets Capitol Hill ahead of a joint session of Congress to certify the votes from the Electoral College in the presidential election in Washington, Monday, Jan. 6, 2025. (AP Photo/Jose Luis Magana)
A person crosses a street as heavy snow falls Sunday, Jan. 5, 2025, in St. Louis. (AP Photo/Jeff Roberson)
Truckers fight the weather as they stop on Interstate 44 in Fenton, Mo. to change wiper blades as sleet falls on Sunday, Jan. 5, 2025. (Cohen/St. Louis Post-Dispatch via AP)
A runner passes on a snowy morning as it falls over Center City, Philadelphia, Monday, Jan. 6, 2025. (Alejandro A. Alvarez/The Philadelphia Inquirer via AP)
Josh Williams, of Johnstown, shovels snow from the walkway at First United Methodist Church on Vine Street in downtown Johnstown, Pa., Monday, Jan. 6, 2025. (Thomas Slusser/The Tribune-Democrat via AP)
John Lovrich uses his Yamaha Kodiak 450 4x4 all-terrain vehicle to plow snow near his home in the Cambria City section of Johnstown, Pa., Monday, Jan. 6, 2025. (Thomas Slusser/The Tribune-Democrat via AP)
St. Ann resident Troupe El checks for traction on Monday, Jan. 6, 2025, after getting his vehicle stuck trying to enter St. Charles Rock Road from the Crossings at Northwest in St. Ann, Mo. (Christian Gooden/St. Louis Post-Dispatch via AP)
A man wearing a Venezuelan flag starts a moped as snow begins to fall again, Monday, Jan. 6, 2025, in Washington. (AP Photo/Jacquelyn Martin)
"Aurelia Roma", a 1994 Italian marble sculpture by Manuel Neri, is wrapped for the season as she stands in the pool of the Estate House terrace surrounded by snow at Laumeier Sculpture Park in Sunset Hills, Mo. on Monday, Jan. 6, 2025. (Robert Cohen/St. Louis Post-Dispatch via AP)
A Delta Air Lines jet is deiced before takeoff at the Detroit Metropolitan Wayne County Airport in Romulus, Mich., Monday, Jan. 6, 2025. (AP Photo/Charlie Riedel)