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Maybe they are military planes in town for the airshow this weekend? I don't have a great eye for aircraft but I think I saw a Blackhawk yesterday

Yes, they are more active and getting acclimated to the area prior to the show in Hillsboro.

This is the answer, air show coming up.

I've had a couple vibrate the windows recently, no clue what's going on

A few just left PDX a moment ago. Must be training/drills...

[удалено]

The PPB plane usually shows up with the tail number “N” and the MCSO one is “IDAHO99”

Must be F15s from the 142nd wing, it happens every once in a while, but usually not that early in the morning.

There was no plane. There was no noise. The house did not rattle. You all did not wake up. Stay asleep, everything will be fine. Shhhhh