Over 10,000 U.S. Flights Already Canceled Sunday Due to Winter Storm

A significant portion of the United States is experiencing the effects of a severe winter storm on Sunday, with snow, sleet and ice causing power outages and wreaking havoc on travel around the country.

It's just before noon ET, and already, over 10,000 fights have been canceled at American airports due to the inclement weather, according to Flight Aware.

Three airlines have canceled over 1,000 flights each

As of the time of this writing, there have been 10,399 flights within...