I was en route from San Francisco to Boston, just about 12 hours ago, when lightning illuminated the skies near Lake Michigan, as I was over Chicago. It was a beautiful scene as the backlit clouds exploded with light, as stars illuminated above. Here are my photos below. The photos were made with a Leica M9 and a 35mm 1.4 lens. The settings were 6 seconds, handheld, at F1.4 at 1250asa.