A dense fog advisory is in effect for the Charlotte region and mountains until 10 a.m. Wednesday.
Visibility could be less than a quarter-mile in some areas, according to the National Weather Service’s Greenville-Spartanburg office, which issued the advisory.
Slow down, use your low-beam headlights and leave plenty of distance ahead of you.
Fog and mist were reported at 5 a.m. at Charlotte Douglas International Airport.
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The rest of Wednesday’s forecast calls for a 30 percent chance of thunderstorms in the afternoon and evening and a high of 83.
A moist southwesterly flow is expected to persist over the region through Friday, keeping conditions unsettled, with chances for showers and thunderstorms each day, according to the National Weather Service.
A cold front is expected to cross the region by the end of Friday, ushering in drier weather.
A 30 percent chance of showers is forecast for Thursday and a 60 percent chance Friday. Saturday is expected to be partly cloudy and Sunday all sunshine.
Thursday’s high also is expected to hit an unseasonable 83. Friday’s high is forecast to be 82, Saturday’s 75 and Sunday’s 73.