voyhere.com

I didn’t see these myself, but apparently on Dec. 5 these were over Mt. Rainier.  They are “lenticular” clouds:

They’re caused when the air flow is just right so when it flows over Mt. Rainier, the air gets pushed upward where it cools and condenses into clouds.  Depending on how smooth the flow is, you can get some amazing cloud formations..

See here for many more pics and info.

It’s because I was moving to Seattle.  Don’t worry, I will now return you to your regularly scheduled program.