Roughly 13,000 Pepco customers are without power in Montgomery County tonight.
A power company spokesperson says that's because a substation is damaged due to lightning and strong winds. Crews are currently on the scene assessing the damage.
Pepco also has around 3,500 customers in the District and 900 in Prince George's County without power at this time.
About 800 Dominion customers in Northern Virginia are also without power.
Strong storm systems tore through the area late on Thursday afternoon. At the peak, as many as 18,000 Pepco customers were without power.