Missouri River Runoff Trending Below Normal After Above Normal Forecasts Earlier This Year

(KCCR) — At the beginning of 2020 officials with the Army Corps of Engineers said runoff into the Missouri River would remain average. The last few months runoff in to the river has been well below average. September runoff into the Missouri River basin was 69-percent of average. John Remus, Chief of the Missouri River Basin Water Management Division says they expect runoff for the remainder of 2020 to stay below average. The upper Basin runoff forecast is now sitting at 30-point-two million acre feet, which is 117-percent of average. The average annual upper Basin runoff is 25-point-eight million acre feet. Only two-point-five of the 58-point-six million acre feet of storage is being used in Missouri River reservoirs. Storage peaked at 61-point-eight million acre feet in mid-July. If conditions hold, system storage could be point-eight million acre feet below the base of the annual flood control zone to start next year’s runoff season. The Oahe Dam power house will undergo a complete outage next Tuesday to conduct scheduled maintenance. The maintenance will take place during the day so crews can complete work in the tailrace area. There will be no releases from the power house during the outage. The Oahe Reservoir is expected to be at level 1608-point-five by the end of the month.