An Ultra-Orthodox Jewish boy watches a bonfire during the Lag Ba'Omer
celebration in Jerusalem on Wednesday, May 25, 2016. The holiday marks
the end of a plague said to have decimated Jews during the Roman times.
Lightning flashes in the sky behind the Gateway Arch, right, and the Old
Cathedral, left, as a line of thunderstorms moves through St. Louis,
Wednesday, May 11, 2016. Thousands of Ameren Corp. customers in the St.
Louis area lost power after the strong thunderstorm hit the region.