Severe afternoon thunderstorms knocked out power to nearly 6,700 Duke Energy customers in Mecklenburg County as of 7 p.m. Thursday.
Rowan County also was hard hit, with about 2,600 customers without power at 5:30 p.m. The number fell to 1,500 by 7 p.m.
The intense weather developed around midday as a line of storms headed east across western North Carolina, according to the National Weather Service.
Storms “capable of producing large hail, damaging winds, and a tornado or two is not out of the question,” NWS meteorologists said.
Another “strong thunderstorm” was expected to hit Mecklenburg, Union and Cabarrus counties until 5:45 p.m., the weather service reported.
Brief but heavy rainfall hit parts of the Charlotte area, and flooding was expected in isolated areas throughout Thursday, according to the NWS office in Greenville-Spartanburg, S.C., which oversees the Charlotte area and parts of the NC and SC mountains.
Most of the rough weather was expected to be east of the mountains, officials said.
The showers began moving into the North Carolina mountains at about 11:30 a.m. and reached the Charlotte area after 1 p.m.
The rain should begin to ease around 11 p.m., officials said.