GOOD MORNING, Prices are lower across the board after the July WASDE made only marginal cuts to production estimates.  The bottom line is that unless there is a weather problem, supplies will be ample.  Negative comments as regards trade negotiations added to the technical selling picture.  Rainfall prospects are improving over the next five days which pressured prices this morning.  WEATHER US: Southern Plains will be warm to hot with restricted amounts of rainfall over the next few weeks.  The southwest Corn Belt will be the driest over the next two weeks with hot weather into early next week.  Though temperatures remain above normal starting mid-week to weekend, conditions may be unsettled enough to have...