All Houston airports will reopen Wednesday after shutting down on Jan. 21 as a winter storm barreled through South Texas.

Even though the airports are back open, there are still about 500 flights between Bush and Hobby airports that have been canceled on Wednesday.

Here's a look at snowfall totals from Tuesday's winter storm that blanketed Houston and parts Louisiana in multiple inches of the white stuff.

A rare winter storm churned across the U.S. Gulf Coast on Tuesday, breaking snowfall records more than a century old in a southern region where flurries are unusual, as much of the United States remained in a dangerous deep freeze.

STORY: A once in a century winter storm is churning its way across the U.S. Gulf Coast, where snow flurries are rare.The National Weather Service said 31 million people were under a snowstorm warning on Tuesday - from southern Texas east through Georgia and north to the Carolinas and into Virginia.

A major winter storm prompts blizzard warnings, dumping heavy snow and sleet in a region where even flurries are a rare sight.

A record-breaking and rare winter storm hit the southern US Wednesday — dumping snow on New Orleans for the first time in15 years, and triggering the Gulf Coast’s first ever blizzard warning. The historic snowfall — which slammed areas from Florida to Texas starting Tuesday — snarled travel and brought daily life to a halt in regions unprepared for the freak weather event.