The Saskatchewan Watershed Authority is releasing more water from Lake Diefenbaker through Gardiner Dam.
Effective May 13, the flow will increase by 450 cubic metres per second to 820 cubic metres per second.
Director of regional operations Doug Johnson said the release will reduce potential for flooding from mountain runoff, which is above normal this year.
He said impacts are not expected downstream from the additional water. However, people are reminded to stay away from fast-moving water.
The peak runoff from the mountains reaches Lake Diefenbaker in June.
