Update 10 p.m.: 212,000 Still Without Power Sunday

Update 10 p.m.

Local government officials are advising residents to allow extra time to get to work Monday morning — many traffic signals throughout Northern Virginia are still dark, which may cause confusion and unusual congestion. (Residents are reminded to treat four-way intersections without working traffic lights as a four-way stop.)

VRE and Metro trains are expected to run on time Monday morning. Metro buses and other bus services may experience traffic delays or operate on slight detours due to downed power lines and trees.

Friday night's left widespread wind and rain damage across several states. Dominion Virginia Power has called in crews from as far away as Texas to help in restoring power to hundreds of thousands of customers.

At 9:40 p.m., 212,582 Dominion customers in Northern Virginia were still without electricity and air conditioning.

Late Sunday afternoon, Dominion Virginia Power officials said they expected 80 to 85 percent restoration by the end of Tuesday, and 90 to 95 percent restoration by the end of Thursday. The last customers .

An update on crew work locations for Monday will be available here around 10 a.m.

Monday's temperature will be in the low to mid-90s under mostly sunny skies.

Update 4 p.m.

As of 3:38 p.m. Sunday, the most recent figures from Dominion Power show that 248,056 of its customers in Northern Virginia are still without power, after a surprise hit the area Friday night. The company told Patch Sunday that it before 100 percent power is restored.

At 4:19 p.m., via Twitter (@DomVaPower), Dominion Power reported they expect 80 to 85 percent of customers to have power restored by Tuesday night, and 90 to 95 percent restored by Thursday night.

Most recent outage figures by locality, of Dominion Power customers, show:

• Alexandria: 23,758
• Arlington: 37,359
• Fairfax City: 3,451
• Fairfax County: 127,058
• Falls Church: 4,781
• Loudoun County: 25,069
• Prince William County: 7,988

View Dominion Power work locations here.

NOVEC customers in Prince William County .

If you purchased a generator this weekend for your home, please .

Fairfax County's emergency information blog has a list of cooling centers some open until 8 p.m. Sunday.

Verizon is in the wake of the storm. One of the biggest challenges has been a power failure at one of the Verizon facilities in Arlington, which has made it more difficult for some callers to dial 911 in Prince William and Fairfax Counties. 

Still, people are finding ways to cope: Down in Fredericksburg, business owners are despite not having electricity. And in Reston, .

No word yet on whether federal employees will report to work on Monday.

In Falls Church, some residents are  

Update 1 p.m.

Some Northern Virginians are breathing a sigh of relief after getting their power restored today but there are still 264,468 Dominion Power customers without power in the area as of 12:48 p.m., the most recent figures available from the company. 

The temperature was 95 degrees at Reagan National at 11:52 a.m., the most recent information available from the National Weather Service. The Weather Channel reports a heat index (what it feels like) of 100 degrees.

Fairfax County Supervisor Pat Herrity has opened a temporary unofficial cooling center in his office at 6140 Rolling Road in Springfield, next door to the post office. He promises water, board games and TV.

, 5935 Freds Oak Road, is open from 1 to 5 p.m.

Latest figures available for Dominion Power customers without power:

• Alexandria: 24,059
• Arlington: 39,249
• Fairfax County: 130,617
• Fairfax City: 3,428
• Falls Church: 4,835
• Loudoun County: 25,057
• Prince William County: 9,913

Update 10 a.m.

Dominion Virginia Power has released a list of crew locations where staff are working to restore power in Virginia. You can see the full list here to find out if your neighborhood (or general area) is on the list.

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Dominion Virginia Power has made substantial progress in restoring power to customers, but more than 290,000 who went to bed hoping and praying the power would be back on this morning woke up disappointed.

The power company is working on restoration estimates but still say it could be several days before all customers have electricity again.

As of Saturday night around 10 p.m., more than 345,000 people were without power – down from more than 460,000 in Northern Virginia right after the storm hit Friday night. More than 50,000 people had their power turned back on overnight.

Because of the widespread nature of this storm, utility crews from as far away as Texas are enroute to the mid-Atlantic. Gov. Bob McDonnell said Saturday this is the biggest non-hurricane power outage in the state's history.

As of 6:30 a.m.:

• Arlington: 45,293
• Alexandria City: 22,644
• Fairfax County: 145,583
• Fairfax City: Over 2,000 (Updated: 9:15 a.m.)
• Loudoun County: 27,015
• Prince William County: 11,383

Dark Traffic Signals

Drivers are reminded that if they come to an intersection where all traffic signals are dark, they should treat that intersection as a four-way stop to avoid accidents. WTOP reports police are out enforcing this law.

Boil Water Advisory Near Falls Church

The following message came from the Falls Church Water Utility: “Out of an abundance of caution, the Falls Church Water Utility advises water customers in portions of Tysons Corner, Vienna, Dunn Loring and Merrifield to use boiled tap water or bottled water for drinking and cooking purposes as a safety precaution. Customers are advised not to drink tap water without boiling it first. Failure to follow this advisory could result in stomach or intestinal illness.” More information and boiling instructions are available here.

Today’s Weather

High temperatures will be sticking around today – temperatures will hit the upper 90s today with mostly sunny skies. As of 6 a.m., there were no excessive heat warnings or watches across the area (and none planned to go into effect), but residents should still take precautions against the heat. People who are sick, very young or very old are particularly susceptible to heat-related illnesses.

Nationwide, the heat wave and Friday's storm have been blamed for at least 13 deaths. There have been six reported deaths in Virginia, primarily from trees falling on homes or cars during the derecho storm Friday night.

A derecho is a straight-line wind storm.

Heat Tips

• If you don’t have air conditioning, go somewhere that has it. If you have to, try to stay on the lowest floor of a building and stay out of the sun.
• Drink plenty of water to stay hydrated—a key component to keeping yourself cool.
• Dress in light colored, lightweight clothes.
• Try to spend the hottest part of the day in an air-conditioned location, such as your local library, movie theater or mall.
• Check on your elderly neighbors, who are more susceptible to heat-related health problems.
• Even with shade and water, it’s just too hot for your animals to be outside.
• Double Dog Dare blogger Ariel Leath has .

Food Safety: If you've been without power since Friday night's storm, it's probably too late to save that food in your fridge and most food in your freezer. , including what's safe and what's not .

911 Systems

Many residents are , but the 911 service is reportedly back up and running in Fairfax County. In other areas, the service is working most of the time.

Damage Photo Galleries

Photo galleries from Patch editors and our readers, of damage around Northern Virginia:

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