Winter storms that dumped heavy snow and high winds on the Midwest and beyond Monday resulted in over 1,800 canceled flights and another 6,400 delays.

According to FlightAware.com, over 230 flights within, into or out of the United States were canceled Tuesday morning and another 760-plus have been delayed thus far. Chicago’s O’Hare International Airport and Detroit Metropolitan Wayne County Airport were impacted most by the storms.

The storms have also brought cold temperatures, with 16 states from Oklahoma to Maine under winter storm warnings or winter weather advisories. On Tuesday, the weather system will reach the Northeast and the East Coast, according to ABCNews.

Record-cold temperatures have already spread into the central U.S.

According to ABC Chicago, meteorologists issued a Winter Weather Advisory for the entire Chicago area of northeast Illinois into northwest Indiana on Monday, with three-to-six inches of snow expected to fall.

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Lake-effect snow hitting the area could result in totals surpassing six inches in the city and across northwest Indiana. The storm is also expected to bring temperatures in the 20s and strong northerly winds gusting over 30 miles per hour. The snow is expected to stop on Tuesday.

Overnight snow and strong winds are expected to “significantly” impact the Monday morning commute. After the snow, record cold temperatures may hit the region.

As a result of the winter weather, an incoming American Airlines flight from North Carolina slid off a runway at O’Hare Airport upon landing at around 8 a.m. local time, according to the Chicago Tribune. Thankfully, no one was injured.

In addition, the Illinois Department of Transportation trucks have been working around the clock to keep the roads safe, but accidents have been reported around the region.