See the aftermath of the massive winter storm that pummeled the US

Snow turned to ice in many affected states as the storm moved from the Southwest to the Northeast.

New York City Mayor Zohran Mamdani announced that schools would be closed and lessons would be taken online on Monday.

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

The Great Lakes region is set for a fresh wave of snow, travelling south from Canada, the National Weather Service said Monday.

The Departments of Transportation in several states, including New York and Texas, have urged residents to avoid roadways during the winter storm and through Monday.

Some Americans ventured into the frosty weather with skis, including folks in Indianapolis and Washington, D.C.

Aviation analytics company Cirium said over 10,000 flights were canceled over the weekend. Nearly 2,000 flights have been canceled so far on Monday. Over 50% of American Airlines flights were canceled on Sunday and over 75% of JetBlue flights.

Ice and sleet are other factors at play during the winter storm. On Sunday, the National Service Prediction Center said parts of the country have received over 0.5 inches of ice.

Ice storm warnings remained in effect for much of the storm's path.

The power was out for over 800,000 people as of Monday morning, according to poweroutage.us, an analytics firm tracking electricity outages across the United States.

Tennessee, Louisiana, and Mississippi had the most people without power on Monday.

Shoppers across multiple states emptied grocery shelves on Friday and Saturday as they prepared to hunker down for the winter storm.

Consumers have been known to panic-buy during emergencies. During the pandemic, panic-buying across the US led to a short-term shortage of toilet paper and other essential items.

Salt is spread on roadways to improve traction and make plowing easier.

In Louisville, city workers used a mixture of salt and calcium chloride.

"Calcium chloride helps salt remain effective in extremely cold temperatures," the city said on its website.

While many Americans stayed inside, swaths of workers across the country braved the weather to help clear snow and perform other storm-related tasks.

New York City Mayor Mamdani praised city workers in an X post on Sunday, writing, "Thank you to all of the city workers who have been working around the clock this weekend to keep us safe. No job is too small, no storm is too big."

Alongside the closure of New York City's public schools, Boston Public Schools and Baltimore City Public Schools have also said they'll go remote to start the week amid the severe cold.