Cumberland, MD – Drivers across the Allegheny Highlands and Shenandoah Valley are waking up to dangerously low visibility Saturday morning as dense fog blankets the region. Visibility in some areas has dropped to a quarter-mile or less, prompting a Dense Fog Advisory that remains in effect until 8 a.m.
According to the National Weather Service in Baltimore/Washington, the advisory impacts a wide swath of western Maryland, northwestern Virginia, and the eastern West Virginia panhandle—including key counties like Allegany, Garrett, Frederick (VA), Hampshire, and Berkeley.
Major roadways like I-68, I-81, and US-220 are affected, particularly in valleys and low-lying areas where fog tends to settle. Drivers are urged to slow down, turn on low-beam headlights, and allow extra space between vehicles.
Morning commuters in places like Cumberland, Romney, Winchester, and Moorefield should expect delays and changing road conditions until the fog begins to lift mid-morning.
Visibility should improve by 9 a.m., but drivers are encouraged to check local conditions before heading out. Additional advisories are not expected today, but patchy fog may return in isolated areas overnight.
