I have a mate who is working in Kazakhstan and he keeps me informed of what he’s up to and he says it has been very dry this spring and the crops look very thin.
Coupled with recent high temperatures and it’s not surprising yield forecasts are being downgraded.
Here's a picture of some Kazakh wheat. Before you go and panic buy on the back of it just remember that good Kazakh wheat doesn't look much better, it always is a thin crop. It's sown late, has about 100 days to grow in and yields 1.5 to 2.0t but you have loads of space to grow the stuff in.