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December 2021 Water Level Update

Lake Michigan water levels have continued their seasonal decline this fall, decreasing by about 2 inches from November to December. Though Lake Michigan is now about 23 inches below the highest monthly water level recorded…

Updated: Wisconsin Shoreline Inventory & Oblique Photo Viewer – Featuring NEW photos from 2021

A web-based, interactive map of Wisconsin coastal data that enables users to visualize the temporal changes to Wisconsin’s shorelines. Updated: Wisconsin Shoreline Inventory & Oblique Photo Viewer Featuring NEW photos from 2021   Overview The…

November 2021 Water Level Update

Lake Michigan water levels have continued their seasonal decline this fall, decreasing by about 3 inches from October to November. Though Lake Michigan is now about 25 inches below the highest monthly water level recorded…

September 2021 Water Level Update

Lake Michigan water levels have begun their seasonal decline this fall, decreasing by 2 inches this month. Water level fluctuations can be explained by the Net Basin Supply (NBS) and this past June was the…

August 2021 Water Level Update

Summer tends to be the season where lake levels increase, however, Lake Michigan water levels have stayed relatively steady since March, increasing by 1 inch this month. Water level fluctuations can be explained by the…

July 2021 Water Level Update

The water levels on all the Great Lakes have continued to be below their monthly record highs as of July 9, 2021. Lake Michigan is now 19 inches below the highest recorded monthly average in…

June 2021 Water Level Update

The water levels on all the Great Lakes have continued to be below their monthly record highs as of June 7, 2021. Lake Michigan is now 14 inches below the highest recorded monthly average in…

May 2021 Water Level Update

The water levels on all the Great Lakes have continued to be below their monthly record highs as of May 7, 2021. Lake Michigan is now 15 inches below the highest recorded monthly average in…

April 2021 Water Level Update

The water levels on all the Great Lakes have continued to be below their monthly record highs as of April 9, 2021. Lake Michigan is now 14 inches below the highest recorded monthly average in…

March 2021 Water Level Updates

The water levels on all the Great Lakes have continued to be below their monthly record highs as of March 5, 2021. Lake Michigan is now 9 inches below the highest recorded monthly average in…