Nothing like that showing up on my radar from over here in Norfolk but I've been following a few reports coming out of Arizona lately and Flagstaff keeps cropping up more than you'd expect for a fairly small area.
What was it doing when you spotted it? Hovering, moving fast, changing direction? The direction-change ones are always the ones that stick with me because conventional aircraft just don't move that way and I've done enough EVP sessions near flight paths to know the difference.
Also what time roughly - was it after dark or still light out? Would help narrow down whether anyone else in the thread might've caught it from a different angle. Would be good if we can get more than one witness account before this one gets buried.