Well done Kempton!

As it happens, I was driving my kids from a ski trip at Mammoth back
to LA on thursday afternoon. The wave, rotor clouds, and rising dust
through the Owens valley last thursday were about the most awesome
aerial sight I've seen. Thick cumulus-shaped rotor clouds capped by
wave going way, way up, extending from Inyokern north as far as I
could see. Of course, being a rube from Chicago, I figured it's always
that way!

John Cochrane