While temperatures will warm up by mid-morning, refreezing remains a concern, particularly north of the Metroplex.

A freezing fog advisory is in effect Saturday morning for parts of North Texas, and drivers should watch out for black ice, officials said.

Much of North Texas is also under a freezing fog advisory through 9 a.m. Saturday, according to the NWS. Conditions are then expected to improve later in the morning, as the fog starts to clear and the temperatures rise, meteorologists say.