Dangerous cold hangs around

Windblown snow swirls around a man under elevated train tracks in Philadelphia on Wednesday, January 22. Driven by frigid arctic air, a powerful system is making a mess of things up and down the Eastern Seaboard, especially from Washington to Boston. More than a foot of snow has fallen in parts of the Northeast.

Workers shovel snow off seating at MetLife Stadium in East Rutherford, New Jersey, on January 22. The stadium will host Super Bowl XLVIII.

Tommy Mallios, left, and his brother Evan shovel snow from a sidewalk in Scituate, Massachusetts, on January 22.

A snow blower clears a sidewalk next to a statue of Mahatma Gandhi at Union Square Park in New York City on January 22.

A man makes his way on a snow-covered path between apartment buildings in New York on January 22.

A man crosses a street in downtown Baltimore on January 22.

People sleep inside a Metrobus parked at Union Station in Washington on January 22. The bus was designated a warming station for the homeless.

A woman walks in Baltimore as snow falls Tuesday, January 21.

Dusk falls over a snow-covered White House in Washington on January 21.

Workers shovel snow in front of Barclays Center in Brooklyn, New York, on January 21 before an NBA game between the Orlando Magic and Brooklyn Nets.

An umbrella comes in handy for a woman on a snow-covered path in Boston Common on January 21.

Wind kicks up snow January 21 in front of a statue in Jersey City, New Jersey.

People brave the elements in New York's Times Square on January 21.

Jason Stoudemire keeps warm while out in Centre Square in Easton, Pennsylvania, on January 21.

Workers clear snow off the steps of the U.S. Capitol in Washington on January 21.

The tugboat Commissioner breaks up ice in Chicago's Burnham Harbor on January 21.

An airplane is de-iced as heavy snow falls at Ronald Reagan National Airport in Arlington, Virginia, on January 21.

A man walks through a snow storm in New York on January 21, as a storm alert was issued from noon Tuesday until 6 a.m. Wednesday, with as much as a foot of snow forecast for the metro area.

Pedestrians make their way through snowfall in New York's Times Square on January 21.

A woman walks through a snow storm on January 21 in south Philadelphia.

Snow falls as tourists take in the New York skyline from the Brooklyn Bridge Park on January 21.

Icy roads cause hazardous conditions as cars slip and slide in Staten Island on January 21.

People walk past the art installation "Red Cube" by Isamu Noguchi in New York during a snow storm on January 21.

People walk with umbrellas through snow fall in New York on January 21.

Blustery conditions make for a chilly walk in New York.

A truck plows an access road to the Empty Sky Memorial at Liberty State Park in Jersey City, New Jersey on January 21.

People try to cover up head to toe during frigid conditions in New York on January 21.

A worker clears snow off sidewalks at Xavier University in Cincinnati, Ohio, on January 21.

A member of the Secret Service Uniform Division stands guard in front of the White House as snow falls in Washington on January 21.

Tony Ciambrello and his granddaughter Addie Maurer walk home from St. Mark's Catholic School in Bristol Borough, Pennsylvania, on January 21.

A person draws a happy face in the snow on a car window in New York.

Antione Larkins shovels snow out of his driveway in Champaign, Illinois, on January 21.

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• NEW: An official reports three suspected weather-related deaths in Pennsylvania


• The blizzard warnings are expiring, but more cold is on the way


• Some areas saw up to 18-inch snowdrifts


• More than 1,400 flights were canceled Wednesday

How cold is it where you are? Share your best photos and footage with CNN iReport.Read this article in Spanish

(CNN) -- Dangerous cold and treacherous driving conditions left millions of Americans along the Eastern Seaboard stuck at home Wednesday.

And, try as we might, we couldn't get any glimmers of hope from the CNN weather department's forecast for what's ahead.

The storm system that dumped record-breaking piles of snow -- including 18-inch snowdrifts in Plymouth, Massachusetts -- is moving off the coast, and remaining blizzard warnings are expiring. But the freezing weather is going to stick around.

Winter blast pummeling East Coast

Meteorologist embraces the cold

Live report interrupted by snowball fight

"Another clipper will reinforce the cold air already in place, so any snow on the ground is expected to hang around," CNN meteorologist Indra Petersons said.

And "more surges of cold Arctic air are on tap for next week," added CNN meteorologist Sean Morris. "New York stays well below freezing for the foreseeable future -- possibly holding until the end of the month, though there's a chance they could briefly rise above 32 degrees Saturday afternoon. Washington, D.C., isn't expected to rise above freezing until Saturday afternoon, when it will be a balmy 37 degrees. But there's more cold and snow on the way early next week."

Meanwhile, in California, some cities are tying records -- for heat. Paso Robles reached 75 degrees Tuesday, while Camarillo reached 84.

But through the Midwest, Southeast and Northeast, temperatures were 15 to 25 degrees below average Wednesday.

Washington's Dulles International Airport recorded about 8 inches of snow Tuesday. New York's Central Park saw 11 inches. Bridgeport, Connecticut, had 6½.

Governors in Delaware, New Jersey and New York issued states of emergency.

This blizzard did not follow a typical pattern, Petersons said. The heaviest snowfall was closer to the coast rather than inland, even though the system was moving from west to east. The storm system strengthened off the coast, picking up moisture from the Atlantic to bump up the snowfall.

Staying home and heading out

Rich Schultz, a father of three in Fair Lawn, New Jersey, told CNN he was spending the day cooking and planning meals for the week, including shepherd's pie and tomato, corn and basil soup.

Others have been venturing out, with potentially deadly consequences.

Three people have died in Pennsylvania in what appear to be weather-related incidents, according to Dana Todd of the Delaware County Medical Examiner's Office.

"Evidence would suggest that weather was a factor, but autopsies have not been performed yet," she said.

The deaths include two men -- ages 67 and 87 -- who were out shoveling, and a 92-year-old woman who had wandered outside her home, Todd said.

Nature photographer Candice Trimble spent Tuesday catching and photographing snowflakes up close in Front Royal, Virginia, she said in a CNN iReport.

Washington D.C. buried in snow

Winter weather continues to blast U.S.

It was a time for play for some in Philadelphia. With about a foot of snow falling on the city, the steps at the Museum of Art became a sledding hill.

On Facebook, dozens of people told CNN about the silver linings they've been finding in the storm. It "makes you very grateful" for the "wealth you have" in taking care of "basic human needs," Sue Skoo wrote.

"Beer stays cold without refrigeration," Dan Evans added.

Out West, at least one Utah resident didn't understand what all the fuss was about.

"A storm brings 10" of snow to Utah and we throw a party," Drew Stoddard, who lives south of Salt Lake City, posted on Twitter. "It happens in New York and they declare a state of emergency."

Travel concerns

Around the Northeast, some schools and offices were closed, and some roads were shut down.

More than 1,400 flights were canceled, according to FlightAware.com.

At New York's LaGuardia Airport, weary travelers spent a restless and sleep-deprived night on airport chairs and cold floors. Flight cancellations put hotel rooms in short supply.

Susan Otterstrom found out Tuesday that she had two more days in the Big Apple, instead of returning to Illinois.

"I got a call that (my flight) was canceled, and I couldn't reschedule until Thursday," she told CNN affiliate WPIX.

Another traveler said she was resigned to living the concourse life until she could catch a flight out.

"I'm just going to stay here and work and doze and whatever," she said. "You do what you have to do."

Amtrak was running a modified schedule on the Northeast Corridor, saying passengers should expect some delays and fewer trains between Washington and Boston.

"Nobody was outside on the streets and no cars were driving," New York City resident Jodi Kaplan said. "Everyone and everything was so quiet. It was as if NYC welcomed this weather and the chance to stop. And be frozen."

Tips for travelers

JetBlue slammed by another big storm

Greatest things about cold weather

CNN's Steve Almasy, Rose Arce, Margaret Conley, Kevin Conlon, Suzanne Presto and Leigh Remizowski contributed to this report.