I posted a picture of last night's sky to the east, but this is what it looked like to the west:
I worked this afternoon and last night's sunset was the topic of conversation with a couple of patients. They'd noticed it, too. We wondered if it had anything to do with the California fires. In years past, volcanic eruptions on the west coast (Mount St. Helen's) affected our sunsets as well as dust storms out that way.
Whatever caused it, we were the lucky audience to the show!