This sequence was taken over a span of about 10 minutes on June 7, 2015 standing in my backyard. The day had been off-and-on stormy and late in the day, I had seen billowy clouds forming. As sunset approached, the sky first went golden, which drew my eye to the window. Sheryl turned and said, "better get your camera" and off I ran into the backyard, socks soon soaked from the afternoon rains.

I can count on one hand the number of sunsets I've seen that compare in northern Illinois. But every now and then, after a storm, we're treated to the types of sunsets that make regular nightly appearances out west. In this case, mammatus clouds formed and were beautifully lit by the setting sun.

Canon EOS 5D, Tamron 28-105 f/2.8, SP Aspherical LD @ 93mm, 1/30 sec @f/10, ISO equiv 400, handheld