Combines slowed by fog, rain, humidity

Durum yield forecast at 43.9 bpa.

Estimate falls to 49.9 bushels per acre.

Planting issues, spotty rains make for high variability.

Crop went in late, had early heat

Would jeopardize output, imperil exports, they say.

USDA raises 2023 winter crop 6% to 1.206 billion bushels.

Key soybean development period comes later.

Challenges for US grain exports expected to continue.

Average yield of 30 bushels an acre lowest in tour's past 20 years.