Winter Sunset:

A Cold Winter evening:

An orange-cloud sunset:

A crappy Winter day:

A Winter morning, mid-altitude cloud deck, with super clear air underneath -- I was able to photograph Michigan and Indiana:

A severe Spring Storm, followed by some cool clouds and the biggest rainbow I've ever seen:

A superb, Chicago, late Spring Saturday:

These last two pictures taken from Montrose Harbor, facing West, October 2009. Meteorologically speaking, this sky is “severe clear.”