The figures are unofficial because National Weather Service officials must assess totals, but Florida appears to have broken a state snow record.

© Kathleen Flynn for The New York Times

Florida declared state of emergency and blizzard warning had been issued for first time ever in Louisiana and Texas

Severe cold weather has engulfed parts of the US south as a major winter storm bringing record-breaking snowfall and frigid temperatures to parts of the Gulf coast region on Tuesday, with icy conditions expected to continue into Wednesday.

In anticipation of the dangerous winter weather, governors across the south, including Florida’s governor, Ron DeSantis, declared states of emergency earlier this week, and a blizzard warning for parts of Louisiana and Texas was issued for the first time ever, but has since been discontinued.

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© Photograph: Michael DeMocker/Getty Images

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© Photograph: Michael DeMocker/Getty Images

The latest closure means that nearly three-quarters of Louisiana’s portion of the coast-to-coast highway is shut. A rare winter storm brought record snowfall to the state on Tuesday.

© Emily Kask for The New York Times