Not my patch - I'm based in Manchester and haven't been near Nevada in decades - but genuine question for those who were there: did the lights move in formation or was it more like they were independently drifting? Because that distinction matters a lot.
I ask because I've spent years looking into ley line activity around standing stones up here in the north of England and there's a recurring pattern where lights that appear to "hover" are actually moving in extremely slow arcs that follow the local geomagnetic contours. Lake Tahoe sits in some genuinely unusual geology. Volcanic basin, fault lines running underneath, the lot.
So before everyone jumps to spacecraft, can anyone confirm whether the lights had any colour variation? And did anyone on the ground feel anything physical - pressure in the ears, that sort of thing? Those details would help narrow down whether we're talking something atmospheric or something stranger.