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  • Missouri River Water Management virtual public meetings set for Nov. 2

    The Missouri River Water Management Division invites the public to participate in one of two virtual public meetings scheduled for Nov. 2. The meetings will take place at 1:30 p.m. and 6 p.m. central time. Details for connecting to each webinar is posted to our website.

  • Corps updates stakeholders on Missouri River Mainstem System operations

    The US Army Corps of Engineers Missouri River Water Management Division hosted an update call on Thursday, Oct. 22, for Congressional representatives, Tribal, and state and local government officials, to include emergency managers, local levee sponsors and the media to discuss current conditions, and the projected operation of the mainstem reservoir system as part of the Draft Annual Operating Plan which was released in mid-September for public comment.

  • Below average runoff continues in the upper Missouri River basin

    September precipitation was well-below normal in the Missouri River Basin.  As a result, September runoff in the upper Missouri River Basin above Sioux City, Iowa was 69% of average.  Since January 1, precipitation in the upper Basin is well-below normal.  The National Weather Service’s Climate Prediction Center (CPC) is forecasting that below-normal precipitation will continue in October.  The 2020 calendar year runoff forecast for the upper Basin, updated on October 1, is 30.2 million acre-feet (MAF), 117% of average. Average annual runoff for the upper Basin is 25.8 MAF.

  • August inflows much below average in northern Missouri River Basin

    August precipitation was well-below normal in the Missouri River Basin, particularly in the western and far northern portions, which received less than 25% of normal precipitation. The lack of precipitation and dry soil conditions resulted in 74% of average August runoff in the Missouri River Basin above Sioux City, Iowa (upper Basin). The 2020 calendar year forecast for the upper Basin, updated on September 1, is 30.6 million acre-feet (MAF), 119% of average. Average annual runoff for the upper Basin is 25.8 MAF. Runoff in the upper Basin during the remainder of 2020 is forecast to be below average.

  • Gavins Point releases to remain steady through August

    Below-normal precipitation in Montana and Wyoming during July resulted in slightly below-average July runoff in the upper Basin. The 2020 calendar year upper basin runoff forecast, updated on August 3, is 30.9 million acre-feet (MAF), 120% of average. Average annual runoff for the upper basin is 25.8 MAF.

  • Forecast runoff for upper Missouri River basin lower after warm spring

    Gavins Point releases are forecast to remain near 35,000 cubic feet per second through the month of April. The upper Missouri River basin March runoff fell in line with the March 1 forecast. Runoff above Sioux City, Iowa was 5.5 million acre feet, which is almost two times average. The above average runoff was primarily due to plains snow melting over heavily saturated soils. “The warmer-than-normal temperatures melted most of the plains snow in the eastern and central Dakotas. Along with the steady, but near average, rate of snow accumulation in the mountains, the projected upper Missouri River basin runoff for 2020 has been slightly reduced,” said John Remus, chief of the U.S. Army Corps of Engineers’ (Corps) Missouri River Basin Water Management Division.