A winter storm is hitting the Midwest with snow and wintry conditions, causing travel issues for many who were looking to get home following Thanksgiving. At least 450 flights had been canceled around the United States as of 7 a.m. ET, with the biggest impacts at Chicago's O’Hare Airport, according to FlightAware, a flight-data tracker.

Over 500 flights were canceled at Chicago airports on Saturday morning as a winter storm bringing up to 10 inches of snow moves into the area.

A Winter Storm Warning is in effect in the Chicago area until Sunday morning. A snowstorm is expected to bring up to 8 inches in some areas.

A winter storm will deliver a punch of snow to millions in the Northeast after it dumps more white stuff on the snowy Midwest.

The NWS warned that travelers should consider delaying travel unless it's "absolutely necessary," with driving expected to be very difficult to impossible.

O'Hare saw 8.4 inches of snow on Saturday, making it the snowiest November day in Chicago's recorded history, according to the NWS. Wadsworth saw 11 inches of snow; Hoffman Estates, Palatine, Skokie and Valparaiso, Indiana had snow totals near 10 inches.

You don't need to make that emergency run to the store for milk and bread, but Tuesday's winter storm will bring some places the first snowflakes of winter.

Another round of snow hit the Chicago area just in time for the evening rush hour on Monday. I toured the White House to see Melania Trump's Christmas decorations. The East Wing is no more, but the display was still dazzling.