Didn't see it myself but my sister-in-law lives just outside Milwaukee and she mentioned something odd Thursday evening, said there were these slow moving lights over the water and she couldn't work out what they were. She's not into any of this stuff at all so she wouldnt have thought to film it which is frustrating.
Was the triangle shape clearly defined or more like three separate lights in a triangular formation? That distinction matters a lot I think because some of the Lake Michigan sightings I've read about describe a solid craft whereas others seem to be more like loose light clusters. Did anyone else on the ground notice any sound, or was it completely silent? The silent ones are always the ones that get me going.