
Now that the ice is gone and spring launch approaches, it’s time to get our heads around how much water there will be for us to play in. Michigan-Huron (which includes Georgian Bay and the North Channel) in the summer of 2020 set record levels nearly five feet above chart datum. The latest six-month levels forecast promises a continuation of the decline that began last summer. We should probably think of it as more of a correction than a decline, because even with an additional drop this summer over 2021, the mean forecast prediction (green dashed line) for July is still about seven inches above the longterm average and about two and a half feet above datum.