I have seen this going on every single night since I first noticed in Sept.. I smoke cigs outside, so I'm out there every hour or so.. Nothing happens during the day that I've seen. Weather and temp doesn't stop anything.. These lights keep going all night in the worst winds and rain and it doesn't affect their hovering, it's just the same as if it's dry with no wind, which is crazy. I'd have to Google mufon and check I out. You guys are the first place online I've turned to. There are power lines that connect directly to my home.. I don't recall power lines leading to the blue street light out back. I'll have to check tomorrow in the day.