
Black Sea wheat yields were about 30% below the prior year at the start of the 2020 harvest after a dry spring. Ukrainian yields recovered toward last year's levels, but Russian yields stayed historically low.
Consensus now puts Russia's crop at 82-84 MMT, and USDA raised its forecast by 5 MMT to 83 MMT.
A larger-than-feared Russian crop adds export supply and weighs on wheat prices, after the early harvest scare had lifted futures.
After 334 past bearish weather events, Wheat (SRW) moved a median -0.2% over 5 sessions (47% higher; middle half -1.9% to +1.7%), 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.