Corn, soybean and wheat futures markets continued in full retreat today to start the fourth consecutive week of lower prices. All of this bearishness has left farmers in the lurch, but the next remaining hope for a bullish reversal would seem to be related to an event that started today.Corn, soybean and wheat futures markets continued in full retreat today to start the fourth consecutive week of lower prices. The abrupt change in short- and long-term weather forecasts in late July from hot and dry to cool and wet started the initial downward push. The August set of USDA reports was the next bearish market factor that drove funds out of most long positions and encouraged them to again build short positions. The poor technical chart patterns...