Chicago’s O’Hare International Airport imposed a ground stop Friday, suspending departures amid snow and ice, as airports across the country grappled with inclement weather.

The stop came as the clipper system that caused heavy snow and airport delays in the Upper Midwest on Thursday passed through the Illinois city on Friday morning.

As of 11:30 p.m. ET Friday, 467 flights were canceled and 9,376 flights were delayed nationwide.

Southwest Airlines leads the way in cancellations with 113 flights, or 2% of scheduled flights. Airports in affected areas are expected to experience ground stops and delays throughout the night.

The hardest hit airports were San Diego International with 157 cancellations and Boston Logan International with 154 cancellations.

Up to 10 inches of snow fell in the Upper Midwest on Thursday. Ten states are currently under a snow alert, stretching from Wisconsin down to the mountains of North Carolina.

Just in time for her morning commute, a moderate layer of snow with poor visibility moves into Chicago.

A layer of dust of up to 1 inch is possible, just enough to make city streets very slippery and dangerous.

Snow continues to move through Michigan and Ohio this morning, heading northeast.

Rain and snow will move into the I-95 corridor this afternoon and evening, making roads slippery.

Rain and snow will continue along the I-95 corridor into early Saturday morning.

Most areas will only see dust, just like Chicago, but that could be enough to make roads dangerously slick as temperatures drop to near freezing.

About 3 to 6 inches of snow is possible locally in the mountains of West Virginia and western New York and northern New England.

Locally more than a foot is possible at the highest elevations.

Christmas Eve rain or snow in the Northeast?

Another storm system is expected in the northeast on Christmas Eve, with rain and snow possible.

There could be rain and snow along the I-95 corridor on Tuesday, Christmas Eve.

This storm has the highest chance of accumulating snow in northern New York State and New England. It’s still too early to say how much snow is possible.

An arctic break will move into the Northeast this weekend as temperatures fall into the teens and single digits Saturday night into Sunday.

Wind chills could be below zero in inland areas and in the single digits even in large coastal cities.

Looking ahead, warmer weather is forecast for the Northeast and most of the eastern United States after Christmas

ABC News’ Ayesha Ali contributed to this report.