In 1865, record-breaking snowfall was measured in Audubon Park. New Orleans experienced the same amount during Tuesday's blizzard.

Chelsea Brasted/Axios New Orleans shattered its single-day snow record Tuesday during a once-in-a-lifetime snowstorm. Why it matters: Roads, schools and businesses are expected to remain closed through at least midday Thursday due to icy road conditions.

Residents across Southeast Louisiana woke up to a winter wonderland as snowfall totals rivaled those seen in northern climates.

By noon, the National Weather Service had reported about 4 inches of snow in New Orleans. The storm prompted the first ever blizzard warnings for several coastal counties near the Texas-Louisiana border, and snow plows were at the ready in the Florida Panhandle, according to the Associated Press.

Footage from EarthCam shows snowfall blanketing Bourbon Street in New Orleans, Louisiana, as a once-in-a-generation winter storm hits the South.