It is late July and here we are again in the U.S. crop forecasting season. During the next few weeks we will hear numerous predictions of the size of the corn and soybean crops based on formal and informal group and individual crop tours, producers' testimony, computer modeling and plain old "blue sky" guesswork. Crop forecasting is a staple for this time of the year, of course. However, this year -- with most of the U.S from the Plains to the Atlantic Ocean suffering the worst drought since 1936, and with old crop U.S. supplies of corn and soybeans already very tight -- forecasting the size of the drought-damaged 2012/13 crops takes on an entirely new significance.There have been and will continue to be almost daily crop production forec...