Tornadolike activity in Anne Arundel, Baltimore, Harford and Prince George's counties was reported last night as a fast-moving storm trailed along the remains of Hurricane Opal.
About 20 minor injuries were reported in Prince George's, authorities said.
The National Weather Service said a tornado formed over southern Charles County about 8:30 p.m. and moved into Prince George's and Anne Arundel counties. Doppler radar also recorded tornadolike activity near Gunpowder Falls State Park at the Baltimore County-Harford County line, the weather service said.
The weather service said the most serious damage appeared to be in the Temple Hills and Camp Springs areas of Prince George's. Lt. Robert Fuller of the Prince George's County Fire Department said about 20 people were injured by falling limbs and blowing debris.
Lieutenant Fuller said most of the injuries were minor. He said there was considerable damage to homes in some areas. About 9,000 customers were reported without power in Prince George's, the Potomac Electric Power Co. said.
In Anne Arundel, residents of the Quarterfield Farms community southwest of Glen Burnie reported that a tornado touched down there shortly after 10 p.m., but county police had not confirmed the sighting. Several homes also were reported damaged in Severn.
About 6,000 customers in Cockeysville and 2,000 in Glen Burnie were without power late last night, said Darcel Guy, a spokeswoman for Baltimore Gas and Electric Co.
Scattered outages also were reported in Baltimore City and Carroll, Harford and Howard counties.