Tuesday's winter wonderland in Southeast Texas is taking on a new, uglier form thanks to an overnight hard freeze rendering roads and walkways treacherously slick.  Snow melt from Winter Storm Enzo, which dropped more than 5 inches of snow in isolated areas around Houston,

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

City and county officials are encouraging people to stay off of the major roadways Wednesday. More than 50 roadways were reportedly covered with patches of ice on Wednesday morning, according to Houston Transtar.