Key Points
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Dense freezing fog is expected across North Texas during the Wednesday morning commute.
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Visibility may drop sharply while thin ice forms on roads and bridges.
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Conditions should improve by midday as temperatures rise above freezing.
North Texas is emerging from recent winter storm conditions, but weather officials are warning residents to prepare for another potential hazard as freezing fog develops overnight into Wednesday morning.
Forecasters say the densest fog is expected around 7 a.m., coinciding with the morning commute. Visibility across much of the Dallas-Fort Worth Metroplex is projected to drop significantly before improving by midday as temperatures climb and sunlight increases.
Freezing fog forms when moisture in the air condenses into tiny droplets that freeze upon contact with surfaces when temperatures fall to or below 32 degrees Fahrenheit. Recent melting snow and ice have saturated the ground, providing the moisture needed for fog development.
Light winds overnight and rising dew points are creating ideal conditions for freezing fog. As temperatures dip into the 20s and low 30s, the air becomes fully saturated, allowing supercooled droplets to freeze on roads, bridges, and vehicles.
Meteorologists warn that freezing fog is more dangerous than ordinary fog because it reduces visibility while also creating a thin glaze of ice. This can lead to black ice on highways and overpasses, increasing the risk of accidents during early morning travel.
Temperatures are expected to rise into the 40s by Wednesday afternoon, helping melt any remaining ice. However, officials caution that repeated freeze and thaw cycles over the next several mornings could continue to produce slick conditions.
Drivers are advised to slow down, use headlights in low visibility, and allow extra travel time during the morning hours. No additional precipitation is forecast until next week, but another cold front is expected later in the week..
