If you're planning to attend Galveston's Mardi Gras festivities, you'll want to do more than plan out an outfit. You'll also need to avoid new traffic closures, or you could get stuck for hours.

GALVESTON, Texas — You may not recognize these pictures, but no, they're not Photoshopped. Parts of Texas and into Louisiana woke up to a rare treat Tuesday morning: Snow. A rare snow storm ...