Runoff into the reservoir system was below average for the month of March and conditions across most of the basin remain dry, ...

The U.S. Army Corps of Engineers says March runoff in the upper Missouri River Basin was 76% of average. The 2025 calendar year runoff forecast above Sioux City is 85% of average. The runoff forecast ...

The Missouri River basin's average streamflow has risen by about 40% over the past century, influenced by natural climate variability, land use changes, and atmospheric CO 2 levels.

OMAHA — Runoff into the upper Missouri River basin continues to be below average, and the forecast for runoff in 2025 continues to drop as well. Runoff into the Missouri River above Sioux City was 2.3 ...