"It's called 'black ice' because it tends to look like the rest of the pavement on the road, although in reality, it's actually clear," the US Forest Service notes. "Black ice forms without creating bubbles, which allows it to blend in with any surface it forms over. Black ice is dangerous precisely because it's hard to detect."

A woman killed in a car crash and a man found dead in a Katy parking lot were the first deaths reported in connection to the historic January storm.

A historic winter storm slammed the South on Tuesday, including in the Houston area where snow led to significant travel delays and brought daily life to a halt for millions. FOX Weather Meteorologist Kiyana Lewis was in Houston on Wednesday morning with the latest as temperatures remained well below freezing.