To state the obvious, corn and soy futures markets reacted to the flash drought with a vigorous weather premium rally that peaked yesterday, then paused to take a breath today. The current short-term heat wave, displaying some of the hottest temperatures of the summer in the Corn Belt, has joined with the ongoing precipitation deficit in western and central portions of the Belt that has been dubbed the flash drought. Because the maturity of Midwest crops has been lagging ever since so much of them were planted late, the current heat combined with the lack of moisture has hit with potentially greater negative impact on crop yields, especially for soybeans, than might otherwise be expected in late August.Actually, the Midwestern drought is...