Missouri River Runoff Continues Below Average Forecast
The updated 2025 calendar year runoff forecast for the Missouri River Basin above Sioux City, Iowa, continues to be below average. March runoff in the Missouri River Basin above Sioux City was 2.3 million acre-feet, 76 percent of average.
âRunoff into the reservoir system was below average for the month of March and conditions across most of the basin remain dry,â said John Remus, chief of


