A massive winter storm is battering the US this weekend, bringing heavy snow, sleet, and freezing rain to millions of Americans.

The storm, which is set to stretch over 2,000 miles from New Mexico to Maine, hit the south-central US on Friday night and has since been making its way eastward.

While the weather system is expected to push into the Northeast later on Sunday, parts of the mid-Atlantic have already seen several inches of snow on Sunday morning.

As snowfall picked up in New York City, mayor Zohran Mamdani announced schools would operate remotely on Monday due to the weather.

New York Governor Kathy Hochul had previously announced that "all state employees" were also authorized to work remotely to start the week.

"I encourage other employers to do the same, just to keep people off the roads and think about this," she said.

Here's where else the storm is set to hit.

Heavy snow is continuing to fall across large parts of the US on Sunday morning, but it is expected to concentrate in eastern regions by the evening.

The National Weather Service (NWS) has predicted that more than 12 inches could fall from the Ohio Valley through the northern mid-Atlantic and Northeast on Sunday, with almost double that possible in parts of New England and the inner Northeast.

The agency said power outages, tree damage, and dangerous travel conditions are also likely across parts of the Southeast and Mid-Atlantic as a result of freezing rains and lingering icing.

Major cities in the weather system's path include Atlanta, Charlotte, Richmond, Washington, DC, Baltimore, Cincinnati, Pittsburgh, Philadelphia, New York City, and Boston.

Some of the worst hit states so far include Arkansas, where some areas recorded around seven inches of snowfall through Friday night into Saturday.

The NWS said the state had so far experienced "wave one" of the storm, with a second wave due to hit overnight into Sunday.

Oklahoma, which saw several inches of snow on Friday night, was also bracing for a second round of snow into Sunday.

Speaking to Fox News on Saturday, Oklahoma Governor Kevin Stitt said the state could deal with the snow and that he was more concerned with power outages.

More than 800,000 customers from New Mexico to Virginia are without power as of Sunday morning, according to PowerOutage.us.

Moving forward, the NWS said heavy snowfall is likely to lead to "widespread travel disruptions and closures" that could last a number of days.

Travel has already been hit hard this weekend, with airlines canceling thousands of flights across Saturday and Sunday.

Charlotte Douglas International Airport in North Carolina and Atlanta's Hartsfield-Jackson International are the worst affected airports on Sunday, per flight-tracking site FlightAware.

Many airlines are waiving rebooking fees for flights to and from affected regions.