Yesterday's cloud

Yesterday morning I was up before sunrise, as usual, and looked out my front window toward the north, as usual.  There in the sky was a really tall, pink, unusual-looking cloud, interesting enough that I took a picture of it.

It turns out I wasn't the only one who noticed it!  See this article on a missle test:
http://www.msnbc.msn.com/id/49026286/ns/technology_and_science-space/t/us-army-missile-test-sparks-ufo-reports-southwest/