D.C. Mayor Vince Gray was among the 400,000 Washington area residents who were without electricity Thursday morning after a Wednesday night storm dumped heavy, wet snow on the region.

About half of those powerless homes get their electricity from local utility company Pepco, including Gray's.

"There are about 200,000 homes without power, including mine by the way," Gray said with a smile during a Thursday afternoon press conference.

Pepco officials say some residents in Montgomery County might not have their power back on until Sunday.