2019-Apr-22
April 20th Water Levels Report
So far this month, the entire Great Lakes Basin has received 111% of average precipitation, with Lakes Superior and Lakes Michigan Huron at 143% and 119% respectively. More precipitation occurred this weekend primarily in the eastern part of the basin.
Lake Michigan-Huron is 4 inches higher than one month ago, 7 inches above its level of last year, and is projected to continue its upward seasonal trend, climbing 4 inches over the next 30 days.
Lake Superior’s outflow through the St. Mary’s River, and Lake Michigan-Huron’s outflow into the St. Clair River, are forecasted to be above average in April. Moreover, the outflow of Lake St. Clair through the Detroit River is predicted to be above average.
The most recent clear satellite image is this one from April 17th, which shows that the ice cover on the Bay has retreated further, but the east and north shorelines are still largely ice covered. All the images since then have been too cloud covered to determine more recent coverage.
Best Regards,
Rupert
Rupert Kindersley
Executive Director
(416) 985-7378