Seattle UFO noises

Me and my brother were sitting outside out place in the CD when this violent rumbling noise sounded, the ground didn’t shake but it was loud as hell, we both agreed that it couldn’t be a plane because their generally not that loud (my moms a flight attendent I’m around planes a lot) plus with all the smoke in the air it would’ve been impossible for pilots to fly in safely;  and it was loud enough that it brought our neighbor outside to check it out. The noise lasted for a few minutes before vanishing.  It also returned briefly about 20 min later, with all the smoke in the air anything could be flying above rne, and I don’t know any plane that is that loud and takes that long to fly down, let alone the fact that the noise didn’t decrease in the slightest thought out the couple of min we heard it, a planes noise is loud but it goes by as a plane flys by, it doesn’t linger.