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High Water Levels on the Great Lakes

Feb 28, 2018 08:04AM ● Published by Editor

All the Great Lakes have significantly above average water levels.  The high levels on rivers and the heavy snow left to melt around Lake Superior (which drains down into the other 4 Great Lakes) should make water levels rise a bit further.  

By Bill Steffen under Bill's Blog, Weather - WOOD-TV - February 28, 2018

The latest Great Lakes ice extent shows a 33.4% coverage, down 4.3% from yesterday.  The greatest ice cover was 69.1% on Feb. 11.

All the Great Lakes have significantly above average water levels.  The high levels on rivers and the heavy snow left to melt around Lake Superior (which drains down into the other 4 Great Lakes) should make water levels rise a bit further.

Lake Superior is up 6″ in the last year and is now 12″ above the February average level.  The lake is only 2″ from the highest February level ever.

Here’s the MODIS Lake Michigan and Lake Huron Satellite pictures from this (Tues.) PM.  Lake Michigan/Huron (one lake for lake-level purposes) is up 1″ in the last month, up a whopping 11″ year-to-year and is now 19″ above the February average.

The wind has blown much of Lake Erie’s ice to the est half of the lake.  Erie is up 5″ in the last month, up 2″ in the last year and is also 19″ above the long-term average level.

Lake Ontario has the least ice of the Great Lakes at 5.8%.  Ontario is up 2″ in the last year and is 12″ higher than one year ago.   Lake St. Clair has gone up 11″ in the last month and is 11″ higher than one year ago.  The lake is 28″ higher than the average February level.

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