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.

The National Weather Service said a tenth of an inch of ice could accumulate on raised surfaces, such as bridges, and some areas could get up to a quarter inch. But the main travel impacts are expected to be from sleet and snow.