The flow in the Similkameen River can, under certain circumstances, have a marked effect on the flow in the Okanagan River between the outlet from Osoyoos Lake and its junction with the Similkameen. This report describes a method for predicting the outflow from Osoyoos Lake under Similkameen backwater conditions which requires only knowledge of the Similkameen flow and the level of Osoyoos Lake.
Author: R.Y. McNeil