Surprises are surprises because they happen when you least expect them to happen. So it was with today's August USDA WASDE report. Here's what happened in a nutshell:Corn

The yield was reduced from 156.5 last month to 154.4 today. Most analysts were expecting a yield increase. The U.S. export and feed/residual forecasts were reduced by a total of 75 million bushels. Planted and harvested acres were left unchanged. 2013-14 U.S. ending supplies were cut by 122 million bushels but are still huge.

Comments: The corn yield was lower than expected, but the crop can still be a new all-time record if it fills properly and we avoid even a normal frost across the northern U.S. Maturity is still an issue with U.S. corn production. The crop...