Wind!
It was a really windy night here in Boulder last night. I was in the middle of an email when the power slowly died over 30 seconds — every time what I assume to be a branch hit the powerline, the lights and everything would blink off just a little longer, then nothing.
I counted at least 4 branches drop on the house before going to bed. The largest one shook the front of the house, and while it settled, made a loud scraping noise.
Here’s the cause of the shaking:
Jenn’s front yard tree
Jenn’s ex-front yard branch
No broken windows this time. Now, where did I leave that chainsaw?