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  • Dry Conditions expected to persist for the Missouri River Basin

    For the 2022 calendar year, Missouri River basin runoff above Sioux City, Iowa totaled 19.3 million acre-feet, 75% of average. This was the 30th lowest annual runoff for the Missouri River Basin in 125 years of record-keeping. The ongoing drought shows little relief in sight and the U.S. Army Corps of Engineers predicts runoff into the mainstem reservoir system will remain below normal. For 2023, runoff in the Missouri River basin above Sioux City, Iowa is forecast to be 20.8 MAF, 81% of average.
  • Releases from Gavins Point Dam reduced to winter rates

    Flow support for the 2022 Missouri River navigation season ended Nov. 21 as releases were reduced toward winter rates at Gavins Point Dam. “Releases from Gavins Point Dam are being reduced to the winter release of 12,000 cubic feet per second,” said John Remus, Chief of the Missouri River Basin Water Management Division.
  • Gavins Point Dam releases to be reduced to winter release rate in late November

    Six public meetings were held during the week of Oct. 24 to present current hydrologic conditions and the planned operation of the Missouri River mainstem reservoir system for the remainder of 2022. The public meetings were held in six locations in the Missouri River basin and a virtual public meeting was held Nov. 3. The meetings included draft plans for regulating the system in 2023. “We will continue to make releases from Gavins Point Dam to provide flow support at a level 500 cubic feet per second above minimum service, through the end of the navigation flow support season,” said John Remus, chief of the USACE, Missouri River Basin Water Management Division. “The flow support season will end three days early, on Nov. 28, at the mouth of the Missouri River.”
  • Drought conditions worsen in upper Missouri River Basin

    The time for the Fort Peck meeting was updated to 11 a.m. Due to scheduling conflicts, the St. Louis meeting has been canceled. September precipitation was once again below average in the Missouri River Basin. September runoff in the Missouri River Basin above Sioux City, Iowa was 0.6 million acre-feet, 47% of the long-term average. Soil conditions in the upper Missouri River Basin continue to be very dry. According to the Drought Mitigation Center, over 90% of the Missouri River basin is currently experiencing some form of abnormally dry conditions or drought, which is almost a 20% increase from the end of August.
  • Missouri River Basin drought conditions persist

    While the Missouri River basin has seen improved runoff for two consecutive months, it is not enough to overcome the long-term drought persisting in much of the basin. July runoff in the Missouri River basin above Sioux City, Iowa was 3.2 million acre-feet, which is 98% of average and 0.7 MAF more than was forecast last month. This has led to an annual runoff forecast of 20.6 MAF, which is 80% of average and 0.6 MAF higher than last month’s forecast.
  • June’s improved runoff not enough for Missouri River basin drought

    Despite improved runoff in June, water conservation measures will continue for the second half of the navigation flow support season based on the July 1 Missouri River Mainstem Reservoir System storage.