Black ice is an invisible cold weather danger, but how does it form and how can you protect yourself when walking and driving?

Drivers, keep an eye out for ice on Houston-area roads. On Tuesday morning, Houston TranStar was reporting over 50 closures across the area due to dangerous driving conditions.

One of the largest snowstorms to ever hit Houston has come and gone. Hobby Airport recorded 3 inches of snow, Baytown may have won the accumulation award, with 5.5 inches recorded, according to the National Weather Service.

Overnight temperatures in Houston are expected to be as low as 18 degrees, according to the National Weather Service, which means snow that melted Tuesday could become ice by Wednesday.