The storm also knocked down one of the flagpoles, and some people report seeing one of the other buildings in the complex hit by lightning... others reported a big purply explosion somewhere in the vicinity- possibly at the Mirant power plant just north of us.
Needless to say, we lost power here, so I ended up leaving a bit early. It took a while to get home- the GW Parkway was closed both ways due to trees being down. Fortunately, alternate routes were moving, and traffic signals were working in some places. Our house was way out of the blast zone, thank the Powers- we hadn't even had a power outage.
On the way in to work today I saw some of the damage along the Parkway... six or seven trees down, all in the area south of National Airport (mostly south of the marina). Some were 3 feet or so at the boles just knocked over, with 10 foot wide root balls pointing up into the air... very sad. Almost everything is functional at work, except for our antiquated phone system, thankfully.
ETA: the building was actually shaking and swaying at the height of the wind...