
The Mississippi and Ohio rivers are falling again after a brief rain reprieve. A flash drought over the Ohio Valley produced the driest August in 131 years over the Ohio Basin.
The Memphis gauge is forecast to drop to about -8.8 feet by October 15.
Falling river levels during peak harvest reduce barge capacity and raise freight rates, which weighs on Gulf-bound basis for grain and soybeans.
Not enough comparable past events yet for a historical read.
After 357 past bearish weather events, Corn moved a median -0.3% over 5 sessions (44% higher; middle half -2.2% to +1.3%), and -0.5% over 20.
After 363 past bearish weather events, Soybeans moved a median -0.6% over 5 sessions (42% higher; middle half -2.5% to +1.1%), and -0.2% over 20.
Moves of each commodity's benchmark from the last close before the event. Historical reads pool past events of the same kind; they describe what happened, not what will. Not investment advice.