Not really my area if I'm honest - I'm usually more focused on ground-level stuff, EVPs and shadow activity rather than craft sightings. But I'm curious about something. When you say triangular, are we talking a solid rigid shape with defined edges, or more of a triangular formation of separate lights that could theoretically be individual objects flying in pattern? Because I've seen a few reports conflate those two things and they're worth separating out.
Also what altitude roughly? And did any of you notice whether the lights pulsed or stayed constant? The pulsing thing seems to come up a lot in the more credible reports I've read.
Asking because a mate of mine in the Chicago area mentioned something odd last week but was vague about the details and I'm trying to work out if its the same event or something else entirely.