Heavy snow and freezing temperatures are hitting parts of Texas and the Gulf Coast, causing travel disruptions and prompting a number of Southern governors to declare states of emergency. Winter weather — including low temperatures and storms — involves a number of risks,

This upcoming system is expected to usher in even colder conditions, with some areas bracing for single-digit lows and temperatures in the low teens — marking the coldest weather of the winter so far.

Hazardous travel conditions are expected early Tuesday across the San Antonio metro area, but snow and ice will likely melt by the afternoon.

A rare winter storm charging through Texas and the northern Gulf Coast on Tuesday has closed highways and airports and prompted the first blizzard warning for