UPDATE 2:44 a.m. 7/14/2013
All power has been restored.
UPDATE 1:36 a.m. 7/14/2013
A Dominion Power spokesman says power has been restored to about about 7,000 people, and predicts all other customers will be on any minute. However, Dominion's Web site still shows more than 10,000 people without power.
WASHINGTON - A snake slithered into Dominion Power's Arlington substation, knocking out power to more than 10,000 customers in Northern Virginia.
The vast majority of these outages are in Arlington, while thousands of customers are also out in Alexandria and Fairfax. Traffic signals are out in the area as well.
A Dominion spokesman says everyone will be back on by about 2 a.m.
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