(Updated at 8:05 p.m.) Thousands of people in Fairfax County have been hit by power outages in the wake of a thunderstorm that's continuing to march eastward toward D.C. As of 7:15 p.m., there were 16,029 customers in Fairfax County and another 1,770 customers in Fairfax City without power, according to Dominion Energy's outage map,