General Comments Yesterday's strong rally in the grains and soy complex was extended again overnight, and it carried through into the morning session. Once again, U.S. and Paris wheat futures led the way. Trading volume in CME wheat futures was quite large yesterday with almost 146,000 contracts changing hands. Open interest increased about 6,000 contracts. Today's CME wheat volume may have exceeded that.For the past few weeks, the drought in Argentina and Southern Brazil and concerns about lost corn and soybean production dominated grain and soy markets. Now this week, it is the cold wave engulfing Russia, Ukraine, Poland and portions of France and Germany triggering fear of damage to winter sown wheat and barley that has moved the mark...