UPDATED: Dominion expects Northern Virginia power restoration to be 'multi-day effort'

Utility crews are making progress on power outages tonight as temperatures dip into the teens and winds gust up to 20 mph.

Dominion Energy reported just over 100,000 still without power in Northern Virginia at 9 p.m., down from more than 150,000 earlier in the day. The outages include 39,000 customers in Stafford County, nearly 26,000 customers in Fairfax, 15,000 in Prince William and 10,000 in Spotsylvania.

Dominion Energy said restoring power across Northern Virginia is expected to be a multi-day effort. Crews from other states are expected to arrive Tuesday to help in the effort.

"Wet, heavy snow on branches has wreaked havoc on power lines," Dominion spokeswoman Peggy Fox said in a Tweet. "Our ... crews will work 24/7 as safely and quickly as possible to restore power. It will be a multi-day effort." 

You can check the status of Dominion Energy outages here.

Northern Virginia Electric Cooperative reported nearly 8,500 still without power at 9 a.m., down from more than 15,000 this afternoon. Nearly 5,000 of those were in Prince William County and 2,700 in Stafford County.

NOVEC says crews are working as quickly and safely as they can to restore power. You can check estimated repair times for your neighborhood in the NOVEC storm center. The website shows estimated restoration times between 11 p.m. and 7 a.m. tomorrow for most areas.

Fairfax County fire and rescue is warning people to stay away from downed power lines as crews "have been responding to wires down/arching/on fire incidents all morning," the agency said in a news release.

"It is especially important to understand that downed lines can energize other objects, including fences, cars/trucks, buildings, bushes and trees, and telephone/cable TV cables. Assume all downed power lines are live and dangerous!" the release said.