
Heavy rain of 45-60 mm fell in the Ardennes after storm Austen, rewetting soils without major damage. Thin surface crusts have formed on the most fragile plots, around 15% clay, while more clayey soils are less affected.
Disc-tilled seedbeds show visible surface sealing.
Surface crusting can hinder seedling emergence and reduce autumn-sown cereal and oilseed yields, a modest supply risk for feed grains. The effect is local and limited so far, so price impact is minimal.
After 224 past neutral weather events, Wheat (SRW) moved a median -0.1% over 5 sessions (46% higher; middle half -1.4% to +1.5%), and +0.4% over 20.
Not enough comparable past events yet for a historical read.
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.