2020 Great Lakes Water Levels

Updated March 7th. The Army Corps of Engineers – Detroit District is noting that as of March 6, 2020, that all water levels in the Great Lakes are well above their long-term average. These levels project to make 2020 a record year.

March levels and above levels of last year by 1 to 14 inches.  While February saw a decline in water levels by about 3 inches on Lakes Superior, Michigan-Huron, and Lake St. Clair. Lake Erie has risen 1 inch since last month. Lake Ontario is holding steady near its level from a month ago.

February was a fairly dry month throughout the Great Lakes basin. Well below-average precipitation
occurred in each of the lake basins with Lake Superior receiving just 40% of average precipitation during the month.

Water Levels Superior Michigan Huron

Current Projections

As of March 2020

The Army Corps of Engineers is projecting that water levels on Lakes Michigan-Huron, St. Clair, Erie, and Ontario will rise by 2 to 4 inches by their next report on April 6th. Lake Superior is projected to stay at its current level for the next month.

Michigan-Huron is expected to be 581.53 feet. That is roughly four feet above the March long-term average of 577.5 feet. This level is 14 inches above its March levels last year. This level is 3 inches above the record high last established in March 1986

Water Levels St Clair Erie

Great Lake Outflows

As of March 2020

Lake Superior’s outflow into the St. Marys River is forecasted to be above average this month. Lake Michigan-Huron’s outflow into the St. Clair River and Lake St. Clair’s outflow through the Detroit River are predicted to be above average for March. In addition, Lake Erie’s outflow into the Niagara River and Lake Ontario’s outflow into the St. Lawrence River are projected to be above average for March. Water levels and flows in the connecting channels can be significantly impacted by ice during the winter months. The Great Lakes observed low ice levels during winter 2019-2020.


Daily Great Lakes Water Levels

The report below is a view of long-term, basin-scale hydrological data for the Laurentian Great Lakes. Water levels are continuously observed by U.S. and Canadian federal agencies in the region through binational cooperation. NOAA-GLERL relies on this water level data to conduct research on components of the regional water budget and to improve predictive models.

Water level monitoring stations are operated by NOAA’s Center for Operational Oceanographic Products and Services and the Department of Fisheries and Oceans’ Canadian Hydrographic Service. The U.S. Army Corps of Engineers (Detroit, Chicago, Buffalo) and Environment and Climate Change Canada play crucial roles in research, coordination of data and operational seasonal water level forecasts for the basin.


Michigan Wind Farms

Wind Turbines

Michigan Windfarm Map – Comprehensive map of wind farm projects. Including those planned, under construction or canceled. Data also included decommissioned wind farm projects. Updated as new information is available.

Michigan Windfarm Accidents – A historical record and map of indents occurring on wind and solar energy industrial sites. Incidents include those involving transport of materials to wind farm projects. Updated as information is available.

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