I took this picture on March 15, 2012. Relatively slow-moving, but severe thunderstorms developed that afternoon/evening, producing very large hail, localized flash flooding, and a few tornadoes, including an EF-0 in Ida, MI, which is barely 5 miles to my west, an EF-2 in Columbiaville, MI, and an EF-3 in Dexter, MI (just northwest of Ann Arbor.) Some of the hailstones I measured were up to ping pong ball size, or 1.5" in diameter!