Houston Mayor John Whitmire urged Houston residents to not get complacent now that the snow has stopped falling "Hear me!" Whitmire beckoned at a Tuesday press conference. "We're halfway there. The next 24 hours will be the most dangerous.

Houston is preparing for a historic winter storm expected to bring up to 6 inches of snow, a rare event not seen in decades.

A rare, historic snowfall blanketed parts of the southern U.S. on Tuesday, allowing residents to play in the rather unusual weather. Families went snow tubing in Houston. People made snowballs and snow angels. People were even seen skiing on Bourbon Street.