Steve's Atmospheric Phenomena
From time to time, I see interesting clouds. Here are a few images.
A thick streak of cirrus clouds ran across the sky to opposite points on the horizon. It must have been some type of jetstream effect.
Taken with a fisheye lens.
Here is an image of mammatus clouds near sunset. For really spectacular images of mammatus clouds, try this link!
Here's a view from underneath the anvil of a very strong thunderstorm.