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  • 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.

  • Gavins Point Releases Reach 90k

    Water releases from Gavins Point Dam will be increased to 90,000 cubic feet per second at 8 pm today as unregulated inflows from the Niobrara and other watersheds continue to spill into the reservoir. At the same time, Corps officials in Omaha and Kansas City are lending support and resources to state and local communities dealing with rising waters from a powerful regional storm.

  • Gavins Point Releases Increasing

    The U.S. Army Corps of Engineers is increasing releases from Gavins Point Dam today in response to increased runoff into the Missouri River above the dam. Widespread rain and snowmelt has prompted the National Weather Service to issue flood warnings from southeast South Dakota to St. Louis.

  • Corps reports above normal May runoff in the Missouri River Basin; drought conditions improve in upper basin

    The U.S. Army Corps of Engineers Missouri River Basin Water Management Division reports May runoff in the Missouri River Basin above Sioux City, Iowa, was 3.7 million acre feet (MAF), 110 percent of normal. The 2015 runoff forecast has increased to 22.5 MAF, 89 percent of normal. Average annual runoff is 25.2 MAF.

  • Corps decreases runoff forecast due to lower than normal mountain snowpack

    The U.S. Army Corps of Engineers Missouri River Basin Water Management Division is decreasing the annual runoff forecast for the Missouri River Basin above Sioux City, Iowa, to 20.3 million acre feet (MAF), which is 80 percent of normal and 4.9 MAF less than average. The decreased forecast is due to below normal mountain snowpack and the lack of plains snow in the basin.

  • February runoff higher, but 2015 Missouri River forecast still slightly below normal

    The U.S. Army Corps of Engineers Missouri River Basin Water Management Division reports runoff in the Missouri River Basin above Sioux City, Iowa was 2 million acre feet (MAF) during February, 186 percent of normal. The increased runoff was caused by above normal temperatures in the upper Missouri Basin that limited river ice build-up, and melted both plains and low elevation mountain snows. However, the 2015 runoff forecast in the same reach is 24.6 MAF, 97 percent of normal, and the March runoff forecast is about 1 MAF less than in February.

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