Grain and soy futures markets often pose more questions than answers. In terms of trade volume and volatility that is a good thing since it is questions not answers that fuel markets. In that sense last week’s WASDE answered a few questions at least temporarily but raised many more. USDA’s long-awaited September U.S. corn and soybean yield and production estimates put numbers on the amount of damage done by the late season western Corn Belt drought and the derecho winds that tore across Iowa. NASS/USDA dropped harvested acreage by 500,000 (the Iowa storm) and its corn yield estimate 3.3 BPA from its August number leading to estimated 2020/21 production of 14.9 billion bu (down 378 million from last year). The soybean yield fell...