A cross-country storm, a blast of Arctic air and an outbreak of showers and thunderstorms are threatening to snarl traffic and pile up delays at airports over the Thanksgiving holiday weekend, one of the nation's busiest travel periods.

Mother Nature is about to serve up some unappetizing conditions for the millions of Thanksgiving travelers: sloppy weather, snow, the coldest temperatures since February and a potentially disruptive storm are on the way through the holiday weekend. Here’s a day-by-day look at what to expect this week.

A post-Thanksgiving storm could bring Kansas City’s its first snow of the season on Saturday, the National Weather Service said. Up to 2 inches of snow is possible in some areas. There is still a lot of uncertainty in the forecast, so holiday travelers should continue to monitor the forecast. National Weather Service in Kansas City