The rare winter storm that is hitting the southern portion of the United States became historic Tuesday morning when the Lake Charles National Weather Service office issued its first-ever blizzard warning.

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.

The latest on the once-in-a-generation winter system off of the Gulf of Mexico from the southernmost Blizzard Warning ever issued to near-record snowfall.

A historic winter storm threatened natural gas shipments from one the biggest US export plants while heavy snow shut schools and airports in Houston.

A historic winter storm threatened natural gas shipments from one the biggest US export plants while heavy snow shut schools and airports in Houston and highways in New Orleans.Most Read from Bloomber

Some areas of New Orleans and Houston got more than four inches of snow Tuesday morning in a historic winter storm hitting the south.

A rare winter storm charging through Texas and the northern Gulf Coast on Tuesday has closed highways and airports and prompted the first blizzard warning for southeast Texas and southwest Louisiana.

A significant portion of I-10 is closed in both directions in Louisiana west of Baton Rouge to the Texas border.

The blizzard warning in Lake Charles, Louisiana, marked a historic moment, with winds and heavy snow reducing visibility in a region not accustomed to such conditions. As temperatures plunged, governors in Georgia, Louisiana, Mississippi, and Alabama declared states of emergency, and many school systems closed for the day.

As heavy snow, sleet and freezing rain hit parts of the Deep South, a blast of Arctic air plunged much of the Midwest and the eastern U.S. into a deep freeze.

The Houston area’s amazing snow day has arrived! Overall, accumulations look like they got up to between 2 and 3 inches for the majority of the area with some spots that were a little bit higher.

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.