News Releases

Results:
Tag: runoff
Clear
  • Drought conditions driving lowered runoff forecast

    Very dry conditions in April resulted in very low runoff in the upper Missouri River Basin. The upper Basin runoff was 44% of average, which was the 9th driest April in 123 years of record. The updated 2021 upper Basin runoff forecast is 17.8 million acre-feet (MAF), 69% of average, which, if realized, would rank as the 22nd lowest calendar year runoff volume.
  • 2021 runoff forecast remains below average; Virtual spring public meetings April 6

    Reservoir inflows in the Missouri River basin above Sioux City, Iowa (upper Basin) were well-below average in March. The updated 2021 upper Basin runoff forecast is 21.3 million acre-feet (MAF), 83% of average.
  • Missouri River virtual spring public meetings to be held April 6

    The Missouri River Water Management Division invites the public to participate in one of two virtual public meetings scheduled for April 6. The meetings will take place at 1 p.m. and 6 p.m. central time. Details for connecting to each webinar is posted to our website.
  • 2021 runoff forecast remains below average; Virtual spring public meeting set for April 6

    *** Updated to add links to schedule for virtual public meetings *** Reservoir inflows in the Missouri River basin above Sioux City, Iowa (upper Basin) were well-below average in February. The 2021 calendar year runoff forecast for the upper basin remains below average. “Very cold February temperatures in the upper Basin locked up tributaries in ice and reduced inflows to the System reservoirs,” said John Remus, chief of the U.S. Army Corps of Engineers’, Missouri River Basin Water Management Division. “Mountain snowpack continues to accumulate in the Rocky Mountains; however, plains snowpack is well-below seasonal averages and soil moisture continues to be much drier than normal.”
  • Below average runoff forecast for the upper Missouri River Basin in 2021

    **Updated to correct errors in hydropower table.** The updated 2021 calendar year runoff forecast for the Missouri River Basin above Sioux City, Iowa, continues to be below average. “Despite runoff being slightly above average in January, we expect 2021 runoff to be below average,” said John Remus, chief of the U.S. Army Corps of Engineers’, Missouri River Basin Water Management Division. “Both plains snowpack and mountain snowpack continue to lag behind seasonal averages, and soil moisture continues to be much drier-than-normal.”
  • Missouri River reservoir system prepared for 2021 runoff season

    The full flood control capacity of the Missouri River Mainstem Reservoir System is available for the 2021 runoff season. “All 2020 flood water stored in the annual flood control zone has been evacuated as of December 21,” said John Remus, chief of the U.S Army Corps of Engineers’, Missouri River Basin Water Management Division. “The entire flood control capacity of the Mainstem System is available to capture and manage 2021 runoff, reducing flood risk while providing support to the other authorized project purposes.”