Why have grain and soy markets broken out of their dull mode and rallied so sharply with the October WASDE now only three days away?Grain and soy futures opened the overnight session Sunday evening quietly and without much change in prices. While prices were eventually bid higher and trading volume picked up, there was nothing to indicate that the little overnight rally was anything more than the sort of price adjustments we saw during some of last week's market action. However, when soybean futures opened the day session Monday morning about 15 cents higher than Friday's closes with still higher prices quickly to follow as well as corn and wheat prices, it became apparent that Monday's rally was more than some minor consolidating adjustmen...