Nearly half of all flights in and out of DFW International Airport and Dallas Love Field are canceled with snow and sleet falling throughout the region and more expected through Thursday. The FAA issued a ground stop for all flights departing for DFW Airport from other airports,

And even with delays likely expected, Ellzey said it would take extreme weather to shut down a major U.S. airport like DFW: A blizzard with high winds, a major power outage or "zero-zero" visibility conditions, meaning fog is too heavy for pilots to see above or in front of their aircraft.

According to FlightAware, there are 13,031 flights delayed and 1,650 total cancellations as of Thursday morning.

Another round of winter weather could fuel flight disruptions across the south and southeast, and it's already leading to mass cancellations in Texas.

Dallas Fort Worth International Airport issued a winter travel advisory from Wednesday evening through Friday afternoon.

Dallas-Fort Worth International Airport and Dallas Love Field Airport are seeing hundreds of flights canceled on Thursday. Dan Godwin is at the big airport with the latest.

DFW Airport and Dallas Love Field lead the nation in flight cancelations, according to flight tracking website Flight Aware. The numbers below are as of 1:40 p.m. Dallas Love Field Spokesperson Patrick Clarke says the airport feels prepared for the incoming winter weather.

The Tampa International Airport is hit with cancellations and delays after a winter storm hit over the weekend.