Hurricane Harvey's flooding in late August 2017 halted most grain exports through Texas Gulf ports, with virtually no wheat inspected for export in early September. CSX rail delays added to the disruption.
USDA said Gulf ports handle about 46 percent of US wheat exports.
Disrupted Gulf export loadings hurt wheat export flows and pressure HRW cash bids as sales are diverted or delayed. Seasonal harvest demand for transport is expected to rise, but lower 2017 export forecasts should ease the overall pressure.
After 11 past bearish logistics events, Wheat (HRW) moved a median -0.3% over 5 sessions (45% higher; middle half -2.8% to +0.9%), and +0.4% 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.