http://droughtreporter.unl.edu/

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July runoff in the Missouri River Basin above Sioux City, Iowa was 2.0 million acre-feet (MAF), 62% of average. The annual runoff forecast above Sioux City, Iowa is 19.2 MAF, 75% of average. “Above-normal precipitation occurred in much of the basin, though areas of western Montana and Wyoming continue to be very dry,” said John Remus, chief of the U.S. Army Corps of Engineers’ Missouri River Basin Water Management Division. “The dry soil moisture, below-normal rainfall in the mountain regions, and below-normal mountain snowpack runoff have led to well below-average reservoir inflows into Fort Peck and Garrison this summer.” Per the July 1 System storage check, navigation flow support continued to be 4,500 cubic feet per second (cfs) below the full-service level. The flow support season length will be a full 8-month season, ending Dec. 1 at the mouth of the Missouri River. Gavins Point Dam releases were currently 23,000 cfs. The six mainstem power plants generated 766 million kWh of electricity in July, compared to the typical energy generation for July is 949 million kWh. The power plants were expected to generate 8.0 billion kWh this year, compared to the long-term average of 9.4 billion kWh. US Army Corps of Engineers, Aug 7, 2025