This sounds like what my friend and I saw last night. The floaty thing sounds right like a blimp or defective space ship. It had a bear growling noise on its floaty slow descent a black away. Then it appeared back up on 30 degree asent like its how bright the lights are you noticed it. This time the row of lights blue with whitish centering o rpiercing ability then turned into a more strobed changing and them it shot up and vanished in a blink. It was way close. Go to thread on L.A. UFOs in harbor. Ours looked like this. It was in Montana where they film movies and Spielberg lives outside of town.We don't have an airport or planes here.Very small town (7,000).The very loud like in trouble but not plane or helicopter sound just quit after it went out of site floating like down like it just go turned off.

The second floort with no curtains on my friends huge windows are right beside the down town street and this thing went down right behind and to the left of the bank in the alley or assisted living parking lot. We haven't checked it out to not look foolish.Maybe it's a Hollywood prank on friends is what we thought (hoped).