Rare winter storm threatens snow, sleet, and ice across the Gulf coast, leading to state emergencies and widespread disruptions.

An arctic air mass settled over New York City and much of the country Sunday evening, bringing a deep freeze and the chance of more snow than the city has seen in three years. Between 3 and 5 inches of snow was expected in five boroughs overnight,

A rare winter storm charging through Texas and the northern Gulf Coast left New Orleans and Houston frozen Tuesday.