In addition to freezing fog, there is a high likelihood of black ice on roads overnight into Saturday morning, according to the National Weather Service.

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

The National Weather Service is sticking by its guns in predicting snow coming to the Wichita Falls area from late Wednesday through Thursday.

The winter storm warning in effect for North Texas has been downgraded to a winter weather advisory, according to the National Weather Service Fort Worth. Temperatures in the Fort Worth area remain around freezing, and the precipitation could cause a small amount of ice to accumulate bridges and overpasses.

The National Weather Service in Fort Worth forecasts widespread snowfall totals between 1 and 4 inches, but some areas could see up to 6 inches.

Ice and snow are accumulating on bridges and overpasses of major highways, according to TxDOT. Motorists should drive with caution and expect traffic delays.

Even if snowfall amounts exceed the forecast this week, it will still be hard to top Dallas-Fort Worth's greatest snowfall on record.

While forecast models still have plenty of time to change significantly, here’s a timeline of the freeze, based on the latest information.

Preparations are underway as an arctic blast dives into the nation's interior and southern regions and pushes a snowstorm into the Mid-Atlantic and Northeast that will be followed by lethal cold.

Southeast Texas residents should prepare for the most significant winter weather event in years, as freezing-cold temperatures and a winter storm are expected to hit the Houston area over the next several days.