dca is a north south runway airport. this storm is going to bring winds out of the west. big planes do not take off in over 40 knots of cross wind . probably not in 35.

" The maximum demonstrated crosswind limit for the 777 is 38 knots. (44 mph) This is what was demonstrated in flight test and is not considered a hard limit, however most operators will respect that." the 777 is considered one of the best crosswind airplanes. dca is almost certain to remain closed until sandy goes to newengland.

there is a bit of flooding around the 14th st bridge on the dc side, and a few of the underpasses.