Missouri River runoff forecast drops slightly

The May runoff forecast for the Missouri River basin has declined slightly.

According to the U.S. Army Corps of Engineers, runoff into the Missouri River system above Sioux City, Iowa, is now expected to total 20.0 million acre feet of water. That compares to 20.5 maf in April

Predictions of water levels during the coming months for Lake Sakakawea have changed very little despite the expected decrease in overall runoff. Lake Sakakawea is projected to peak at 1,831.3 feet at the end of July. The April outlook called for a peak of 1,831.2 feet on July 31.

The level of Lake Sakakawea was 1,828.2 feet Thursday, about a foot less than was projected a month ago.