Dramatic thunderstorms crossed Maryland yesterday afternoon and evening, with flashes of lightning that knocked out power to thousands of homes.
In Anne Arundel County, some 3,600 customers lost power, Baltimore Gas and Electric Co. spokesman John Metzger said.
The storms were touched off by a cold front moving eastward across the region, and heralding the arrival of dry Canadian air and clear skies that may last through the weekend, the National Weather Service said.
Mr. Metzger said lightning disrupted service to 19,500 homes and businesses in its Central Maryland system.
Baltimore County was hardest hit, with about 9,000 customers losing power temporarily -- most of them on the east side and in the White Marsh area -- followed by Howard County with 5,122, Harford with 2,400, Baltimore with 760, and Carroll County with 673, he said.
Rainfall amounts varied widely, with more than an inch reported in some areas. The Weather Service measured about a third of an inch of rain at BWI Airport by 7 p.m.