Blow out volume in July Corn and Wheat, also in Dec Corn.
Tells me this is an ending based on the weekly charts, even though Price levels were violated on the daily chart. Maybe today the market thinks the crop is as big now as it's going to get.
I have seen lows in years before when planting is 60-85% complete.
Volume can sometimes be more important than price - as far as the market communicating to us what it is actually doing.
Volume in July corn and wheat, Dec corn - highest ever up to this time of day, like July soybeans experienced last Th.