Jerry Jackson / Baltimore Sun
A pedestrian, silhouetted by reflected streetlights, crosses Centre Street during a downpour early Monday morning. 
A severe thunderstorm watch is in effect Wednesday until 10 p.m. for the greater Baltimore region, according to the National Weather Service.
The watch was put in effect for Baltimore and surrounding counties, as well as eastern Maryland, around 3:30 p.m., according to weather officials.
Counties impacted by the watch are Anne Arundel, Caroline, Charles, Howard, Prince George’s, Baltimore, Carroll, Frederick, Kent, Queen Anne’s, Calvert, Cecil, Harford, Montgomery and Talbot counties, according to weather officials.
