Barley damaged in hail storm south of High River, Calgary, on Monday, July 30.
November futures touched £200/t during the week and stood at £192.25/t at lunchtime on Friday.
On the same day, the AHDB estimated wheat yields at 5-8% below the five-year average of 8.2t/ha. This would give a harvest of 13.3-13.7m tonnes, the lowest for five years.
With the GB winter wheat harvest estimated at about 25% complete, there is caution around the figures.
The average August feed barley price rose slightly more, up by just over £4/t to stand at £164/t ex-farm.
Exporters face becoming importers this season - for example, Sweden - while Germany, usually a significant exporter, is almost a domestic market, commented David Sheppard, managing director of Gleadell.
French export prices are well above comparable Black Sea supplies, according to the firm's market report.
"World weather issues are dictating prices. Global production is going backwards, as is the volume of wheat available for export markets.
"This places importers who cannot switch to maize in a perilous position," said Mr Sheppard.
"With ample supplies of grains available over the past seasons, buyers have been buying hand-to-mouth. But, in the current climate, this means they are short and wrong.
"They must decide whether to remain in the head-in-sand camp or bite the bullet and buy."
Comment: Farmers are facing an endless torrent of weather related disasters, from brutal cold and record breaking rainfall that delay planting, devastating drought that lead to lower yield, or destructive hail and early frost that completely decimate the crop:
- Unprecedented drought in the Korea's kills 29 people, millions of livestock and decimates crops
- Erratic seasons and extreme weather devastating crops around the world
- Floods Everywhere: Europe Battered By Sheets Of Rain, Hail and Thunderstorms
- Hail damage to croplands in South Dakota so immense it can be imaged from space
- Italian farmers predict crop shortage because of heavy rains while El Niño causes Peru's grape exports to drop 11%
- 70% crop losses due to extreme weather in Australia
- Unusually cold winter and spring have Koreans worried about rocketing food costs
Also check out SOTT's monthly documentary: SOTT Earth Changes Summary - June 2018: Extreme Weather, Planetary Upheaval, Meteor Fireballs