Per ZNY, 7 Blue Angels aircraft will depart TEB at 1:00-1:15 pm on Friday and fly up to the Tappan Zee Bridge. From there, they will do 3 passes along the Hudson (south, north, and then back south again) at 1000 feet and 280 knots. The purpose of the flights is to photograph the Blue Angels with the WTC in the background. It will be 6 of the Blue Angels in a delta formation with the 7th taking photos.
Tip of the hat to NYCA Contributing Editor Gabe Andino for bringing this to my attention.