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National UFO Reporting Center Sighting Report
Occurred : 12/17/2018 01:30 (Entered as : 12/17/18 1:30)
Reported: 12/17/2018 2:54:26 AM 02:54
Posted: 1/4/2019
Location: Novato, CA
Shape: Unknown
Duration: 5 minutes
Characteristics: The object made a sound, Animals reacted to the event
Loud, typical ufo sound was heard.

I heard a noice like the typical ufo sound (dwound-dwound repeating) like an orbiting/spinning sound, but it was louder than any other plane Iíve ever heard (though a helicopter is louder than what I heard). I only noticed it instantly because I wasnít paying much attention because I was tired. I donít know if the noice faded in or if it was instant. It was loud when I first noticed it but then it got quieter as it went farther away, then it became louder (not as loud as when I noticed it) right before getting quieter again till the noice faded away completely. I heard the noice for up to 5 minutes. I did not make an effort to look outside. Iíve heard this noice multiple times over the years but this time it was much louder than normal. The noice has potential of coming from maybe a big military shipment plane (like a bomber?) but then again, Iím throwing out random guesses.