US Army Corps of Engineers
Northwestern Division

News Releases

  • Weekly Missouri Basin flood response update – 8/22

    U.S. Army Corps of Engineers emergency and water management officials held a call August 22 to communicate to Midwest Congressional representatives, Tribal, state and local government officials (including levee sponsors and emergency managers) an update of current runoff conditions, system storage and a status of flooding response and recovery activities. Of note, maintenance work at Oahe will require flows to be divided between the power plant and the regulating tunnels.
  • Weekly Missouri Basin flood response update for key stakeholders – 8/15

    U.S. Army Corps of Engineers emergency and water management officials held a call August 15 to communicate to Midwest Congressional representatives, Tribal, state and local government officials (including levee sponsors and emergency managers) an update of current runoff conditions, system storage and a status of flooding response and recovery activities.
  • Weekly Missouri Basin flood response update for key stakeholders – 8/8

    U.S. Army Corps of Engineers emergency and water management officials held a call August 8 to communicate to Midwest Congressional representatives, Tribal, state and local government officials (including levee sponsors and emergency managers) an update of current runoff conditions, system storage and a status of flooding response and recovery activities.
  • System storage has peaked; Gavins Point releases to remain at high levels into fall

    System storage peaked at 68.5 million acre feet (MAF) on July 20. Widespread and heavy rainfall in the upper Missouri River basin (above Sioux City) resulted in another month of above average runoff. Areas of Montana, Wyoming, South Dakota, and Nebraska received two to three times normal precipitation during July. July runoff in the upper basin was 7.0 MAF, which is 213%of average. The average July runoff is 3.3 MAF. Runoff remained particularly high in the reaches from Garrison Dam in North Dakota to Sioux City, Iowa, which ranged between three to seven times average.
  • Weekly Missouri Basin flood response update for key stakeholders – 8/1

    U.S. Army Corps of Engineers emergency and water management officials held a call August 1 to communicate to Midwest Congressional representatives, Tribal, state and local government officials (including levee sponsors and emergency managers) an update of current runoff conditions, system storage and a status of flooding response and recovery activities.
  • Weekly Missouri Basin flood response update for key stakeholders – 7/25

    U.S. Army Corps of Engineers emergency and water management officials held a call July 25 to communicate to Midwest Congressional representatives, Tribal, state and local government officials (including levee sponsors and emergency managers) an update of current runoff conditions, system storage and a status of flooding response and recovery activities. A recording of that call can be accessed here: https://www.dvidshub.net/audio/59042/missouri-river-basin-water-management-7-25. It is also available via Podcast at: https://podcasts.apple.com/podcast/id508457675.
  • Weekly Missouri Basin flood response update for key stakeholders – 7/18

    U.S. Army Corps of Engineers emergency and water management officials held a call July 18 to communicate to Midwest Congressional representatives, Tribal, state and local government officials (including levee sponsors and emergency managers) an update of current runoff conditions, system storage and a status of flooding response and recovery activities.
  • Some Fort Peck releases passing through spillway

    Total releases from Fort Peck Dam were increased from 12,000 cubic feet per second (cfs) to 15,000 cfs at 8:00 a.m. on July 15, 2019. The increase of releases includes 3,000 cfs from two spillway gates.
  • Weekly Missouri Basin flood response update for key stakeholders

    Note: This call was held on July 11. Technical issues delayed the release of the recording and this update. We have since resolved the issue and it should not impact us moving forward. A recording of the call is available via Podcast at: https://podcasts.apple.com/podcast/id508457675. All the information is accessible through the Missouri Basin “Web App.” The information at the links in the web app is the most up-to-date information from the National Weather Service and the U.S. Army Corps of Engineers. https://go.usa.gov/xmtYU.
  • Gavins Point releases to remain above average for the summer and fall

    June runoff in the upper basin was 8.7 million acre feet (MAF), which is 159 percent of average. The average June runoff is 5.4 MAF. Runoff remained particularly high in the Fort Randall to Gavins Point and Gavins Point to Sioux City reaches, which were three and four times average, respectively. The 2019 upper basin runoff forecast is 49.9 million acre-feet (MAF). If realized, this runoff total would be the second highest runoff in 121 years of record-keeping, only surpassed by 2011 (61.0 MAF) and exceeding the 49.0 MAF observed in 1997. Upper basin runoff in 2018 was 42.1 MAF, which is currently third highest.