not sure where else to post this and didn't want to create a new thread, but The Red Arrows, the Royal Air Force equivalent of the Thunderbirds, are currently at Udvar-Hazy. They were supposed to do a fly-over at 9:30 AM this morning but had to cancel it due to low cloud cover. Instead they are now planning for a 3 PM fly-over as they depart. The planes are on display, and crews are available, until 2:30 PM.
info:
https://www.facebook.com/events/343058586581320/