Low volume, narrow trading ranges and slightly firmer prices characterized trade in the overnight session for grains and the soy complex. The heavy rains due over the Plains and parts of the Corn Belt will restrict harvest progress with country movement already limited enough that corn premiums are rising, and even the historically low cash soybean basis levels have firmed a bit. Light volume and narrow ranges carried over into the day session with little new to trade on. Weekly export sales were strong for corn, soybeans and meal but just routine for wheat. The Russian situation remains unclear with some government sources now denying that they are shutting down interior grain-loading facilities. Rumors followed by denials has been the pa...