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Dense fog expected through Tuesday morning

The National Weather Service has issued a dense fog advisory for the Baltimore area extending through Tuesday morning. Visibility was reduced to an eighth of a mile at BWI as of 4 p.m. Monday.

Forecasters warn it could make for another treacherous commute, with visibility reduced to a quarter of a mile or less. Fog also affected the Monday morning commute, with a dense fog advisory in effect Sunday night through Monday morning. The advisory includes Baltimore and the five surrounding counties: Harford, Baltimore, Carroll, Anne Arundel and Howard.

Drivers are advised to use low-beam headlights and maintain a safe distance between other vehicles.

The weather is also significantly impacting air travel. Dozens of flights, both departures and arrivals, have been delayed or canceled at BWI Marshall Airport, according to the airport's website. Air traffic monitors show little around the airport. The Federal Aviation Administration has at points imposed air traffic restrictions, said airport spokesman Jonathan Dean.

On the Eastern Shore, a dense fog advisory is in effect through 9 a.m. Tuesday, according to the weather service forecast office in Mount Holly, N.J.

Despite the moist conditions, no precipitation has been recorded at BWI since early Monday morning, one-hundredth of an inch between midnight and 1 a.m. Chances for showers continue through the week.

Have a weather question? E-mail me at or tweet to @MdWeather.

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