UPDATE, 10 p.m. — The Severe Thunderstorm Warning that prompted widespread outages across Alexandria expired at 8:30 p.m., and the regional Severe Thunderstorm Watch was set to lapse at 10 p.m. as the line of storms pushed east of the city. But power outages continued to climb even after the storms moved through.
As of Dominion Energy’s 9:46 p.m. update, 10,887 Alexandria customers were without power — up from the roughly 9,910 reported an hour earlier — out of about 71,210 served citywide. That means more than one in seven city customers remained in the dark, and the figure was still rising. The outage map did not list estimated restoration times.
Regionally, Dominion reported 54,762 customers out across Northern Virginia, with Fairfax County hardest hit at 23,918. Total customers out across Dominion’s service territory reached 56,727.…