5 Oct 2020

Below average runoff continues in the upper Missouri River basin

September precipitation was well-below normal in the Missouri River Basin.  As a result, September runoff in the upper Missouri River Basin above Sioux City, Iowa was 69% of average.  Since January 1, precipitation in the upper Basin is well-below normal.  The National Weather Service’s Climate Prediction Center (CPC) is forecasting that below-normal precipitation will continue in October.  The 2020 calendar year runoff forecast for the upper Basin, updated on October 1, is 30.2 million acre-feet (MAF), 117% of average. Average annual runoff for the upper Basin is 25.8 MAF.

3 Sep 2020

August inflows much below average in northern Missouri River Basin

August precipitation was well-below normal in the Missouri River Basin, particularly in the western and far northern portions, which received less than 25% of normal precipitation. The lack of precipitation and dry soil conditions resulted in 74% of average August runoff in the Missouri River Basin above Sioux City, Iowa (upper Basin). The 2020 calendar year forecast for the upper Basin, updated on September 1, is 30.6 million acre-feet (MAF), 119% of average. Average annual runoff for the upper Basin is 25.8 MAF. Runoff in the upper Basin during the remainder of 2020 is forecast to be below average.

13 Aug 2020

Omaha District closes Missouri River Levee System L-536 breach near Corning, Missouri

The Omaha District, U.S. Army Corps of Engineers, closed another breach along the Missouri River Levee System L-536, northwest of Corning, Missouri, Saturday.

3 Mar 2016

2016 RUNOFF FORECAST BELOW NORMAL; SPRING MEETINGS TO BE HELD APRIL 12–14

OMAHA, Neb. – Runoff in the Missouri River Basin aboveSioux City, Iowa, was 1.9 million acre feet

15 Jun 2015

Corps of engineers updates region on basin conditions

he U.S. Army Corps of Engineers continues to monitor snowpack levels across the Columbia River Basin. “Currently, levels are well below normal for this time of year, so we’re seeing lower than normal river flows throughout the system,” said Steve Barton, Chief of the Corps’ Water Management Division. Basin snow below 5,000 feet in the United States is either already gone or is melting ahead of normal.

5 Jun 2015

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.

6 Mar 2015

Corps invites public to Missouri River operations meetings

The U.S. Army Corps of Engineers Missouri River Basin Water Management Division will hold five public meetings in early April to update stakeholders on current hydrologic conditions and the planned operation of the Mainstem Reservoir System.

6 Mar 2015

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.

12 Jan 2015

Corps increases releases due to cold temperatures; normal runoff forecast for 2015

The U.S Army Corps of Engineers Missouri River Water Management Office increased releases from Gavins Point Dam from 17,000 to 20,000 cubic feet per second in late December and early January to offset water lost to ice formation in response to forecasts of cold temperatures.

9 Dec 2014

Corps reduces Missouri River dam releases to winter levels

As part of the normal operation of the Mainstem Reservoir System, the U.S. Army Corps of Engineers Missouri River Basin Water Management Division has reduced releases from several Missouri River dams to winter levels.