Seiche on Lake Michigan and Lake Superior September 4, 2014

September 6, 2014

September 4th, 2014 at 9:28 pm by under Bill’s Blog, Weather

Seiche Petoskey 9 4 14 Petoskey City Marina and upnorthlve   A rare seiche occurred on Lake Michigan this morning.  The strong, thunderstorm induced S-SW wind blew surface water toward the Michigan side of the lake, causing the water level to rise.  The picture shows a significant rise in the water level of Lake Michigan at the Petoskey Marina, where the water rose over the docks!   At the same time the water level fell in Wisconsin.  As the winds die down the water sloshes back toward Wisconsin and can rise and fall several times before leveling off.  There were a number of fatalities in Chicago due to a seiche in 1954.   Seven people lost their lives in a seiche here in SW Michigan on July 4, 2003.   Strong low pressure centers can create a “standing seiche”.  

There was also a seiche on Lake Superior on the same date.


In my book, The Dynamic Great Lakes, seiches on the Great Lakes are explained.  The Dynamic Great Lakes shows interesting facts about the Great Lakes system, their fishes, invasive species, and encourages people to seek solutions to their problems.


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