Editor's note: Currently, parts of Maryland, Washington, D.C., and Northern Virginia are under a blizzard warning ahead of the snowstorm expected to hit Friday evening. New York City and southern New York state are under a blizzard watch along with parts of New Jersey, Maryland and southeastern Pennsylvania. Parts of central Pennsylvania, Virginia, North Carolina, South Carolina, West Virginia, Kentucky, Tennessee and Georgia are under a winter storm warning. Blizzards are defined by the National Weather Service as a storm with large amounts of snow or blowing snow, winds of 35 mph or stronger, and visibility of less than a quarter of a mile for at least three hours. A blizzard warning is issued when these conditions are expected. A winter storm warning is issued when one or two of these conditions are expected, according to AccuWeather. - Stephanie
Northern Virginia–commonly referred to as NOVA–comprises several counties and independent cities in the Commonwealth of Virginia, in a widespread region generally radiating southerly and westward from Washington, D.C. With 2.8 million residents (about a third of the state), it is the most populous region of Virginia and the Washington metropolitan area. As the term is most often used, it excludes such areas as Warren County and Winchester; "Northeastern Virginia" more closely approximates the area usually meant.
Communities in the region form the Virginia portion of the Washington Metropolitan Area and the larger Baltimore-Washington Metropolitan Area. Northern Virginia is the highest-income region of Virginia, having seven of the 20 highest-income counties in the nation, including the three highest as of 2009.
Northern Virginia's transportation infrastructure includes major airports Ronald Reagan Washington National and Washington Dulles International, several lines of the Washington Metro subway system, the Virginia Railway Express suburban commuter rail system, transit bus services, bicycle lanes and trails, and an extensive network of Interstate highways and expressways.
Notable features of the region include the Pentagon and the Central Intelligence Agency, and the many companies which serve them and the federal government. The area's attractions include various monuments and Colonial and Civil War-era sites such as Mount Vernon and Arlington National Cemetery. It is the most affluent region in the nation.