Multiple major airlines announced travel advisories on Wednesday ahead of the winter storm coming to Houston later in the week.

A massive winter storm set the stage for a brutal travel day Sunday, with airlines warning of widespread cancellations and delays at some of the nation's busiest airports.

The U.S. National Weather Service warned of an unusually expansive and long-duration winter storm that will bring widespread, heavy ice accumulation in the southeast U.S. and cited "crippling to local...