Ever since I saw the movie Koyaanisqatsi, I have been fascinated with time lapse videos of clouds.  Fortunately, there are some really fantastic ones out there.  This one, by Mike Olbinski in the Southwest, was forwarded to me on Facebook from a meteorologist friend.  If you are feeling the lack of rainfall, you will appreciate the views of rain and lightning.  You can read about it at Slate here.