
Low Mississippi River water levels are forcing barge operators to reduce cargo loads to avoid grounding in shallow sections. Freight rates from St. Louis rose about 77% above the three-year average during recent low-water periods.
Federal drought officials warned that slower river traffic could also delay fertilizer shipments.
Barge freight spikes raise the cost of moving corn, soybeans and wheat to Gulf export terminals, which widens interior basis and cuts farm-gate prices. Delayed fertilizer shipments could add cost pressure ahead of planting.
Not enough comparable past events yet for a historical read.
After 359 past bearish logistics events, Corn moved a median -0.3% over 5 sessions (44% higher; middle half -1.5% to +1.5%), and -0.5% over 20.
After 297 past bearish logistics events, Soybeans moved a median +0.3% over 5 sessions (54% higher; middle half -1.5% to +1.8%), and +0.7% 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.