The storm produced unprecedented blizzard warnings in coastal Texas-Louisiana counties and transformed iconic spots like Gulf Shores, Alabama, and Pensacola Beach, Florida, into winter landscapes.
Online tracker FlightAware says nearly 2,000 flights within the U.S. or entering or leaving the country were canceled Tuesday with about 10,000 more flights delayed.
Snow and sleet started falling in Texas as officials begin to close schools and airports. Snow and ice could bring major travel disruptions and power outages from Texas to Florida.
At least four people have been killed as a once-in-a-generation winter storm grips the South.Heavy snow blanketed Texas and the northern Gulf Coast on Tuesday, causing highway closures around New Orleans and Houston as most flights in the region were grounded.