The blizzard warnings are the first since 2017 for New York City. Forecasters said the city is expected to get up to 18 inches of snow, with two feet possible.

© Christopher Capozziello for The New York Times

A mix of snow and ice was arriving in the Midwest and Northeast Tuesday, where tens of millions of people face severe weather.

© Kiichiro Sato/Associated Press

Whether snow falls in major cities Tuesday will depend on the nor’easter’s path.

© Jim Vondruska/Getty Images