Mammatus Mia!

Here in the Boulder, Colorado area, we get odd weather. In the summer the wind blows mostly from the west, and in the afternoon moisture-laden clouds stream over the Rocky Mountains and toward the plains to our east. Mornings in the summer are typically clear, but then a few hours later the skies turn ominous and we can get some pretty rollicking storms. Usually the clouds clear out, and the low afternoon Sun then creates fantastic rainbows to the east. Over this past weekend we had a pretty goo...