Fun With Weather #342

Today it got weirdly cloudy and all thunderstormy, which developed into this covering the sky over our entire valley for about half an hour or so:

They were quite tumorous looking and freaky.  They are apparantly Mammatus clouds and are usually the harbingers of heavy weather.  By the time we'd driven home and I'd grabbed the camera they'd faded to this, they HAD been quite a bit more impressive earlier.  Strange, but lovely!