Missouri River Upper Basin Runoff Forecast Lowered Due To Dry Conditions
The updated 2026 calendar year runo_ forecast for the Missouri River Basin above Sioux City, Iowa, continues to be below average. April runo _ in the Missouri River Basin above Sioux City was 1.5 million acre-feet, 51 percent of average.
“Runo_ into the reservoir system was below average for the month of April due to lack of plains snowpack and precipitation,” said John Remus, chief of the






