A study describes the 2019-2021 drought in the La Plata Basin, which is still ongoing and has affected Brazil, Paraguay, Argentina and Uruguay. The event ranks among the top five dry episodes in south-eastern South America since the 1950s, with La Niña a key driver.
Persistent drought in key South American crop areas constrains soybean, corn and meal output and keeps supply risk elevated for feed markets.
After 1,079 past bullish weather events, Soybeans moved a median +0.3% over 5 sessions (54% higher; middle half -1.4% to +2.0%), and +0.9% over 20.
After 1,465 past bullish weather events, Corn moved a median +0.2% over 5 sessions (54% higher; middle half -1.4% to +1.9%), and +0.9% over 20.
After 453 past bullish weather events, Soybean Meal moved a median +0.5% over 5 sessions (55% higher; middle half -1.6% to +2.7%), and +0.5% 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.