Overview
- National Weather Service dense fog advisories remain in effect for south-central and eastern Pennsylvania with expirations generally between 8 and 10 a.m. EST.
- Alabama saw multiple dense fog alerts overnight, including a North Alabama advisory set to end at 2 a.m. and a Central Alabama advisory in effect until 6 a.m.
- Visibility commonly fell to a quarter mile or less, with reports of only a few hundred feet on I-81 in Schuylkill County, Pennsylvania.
- Forecasters advise drivers to slow down, use low‑beam headlights, and leave extra following distance during periods of near-zero visibility.
- Ahead of the holiday, the incoming front is expected to bring spotty showers, stronger winds, and a Laurel Highlands wind advisory from 7 p.m. Wednesday to 7 p.m. Thursday that could produce gusts up to 55 mph and isolated power outages.