Great Lakes ice cover developing; Earliest in over 40 years 
 

 
 
 
 
 
 




 
  
 
 



 
 



 
 
 
 


 


 
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 Ice is already starting to develop on Michigan's Great Lakes. This is the 
earliest ice on some of the Great Lakes in at least 40 years.
 According to the Great Lakes Environmental Research Laboratory 
http://www.glerl.noaa.gov/, on November 20, 2014, Three of Michigan's Great 
Lakes had ice starting to form. Lake Superior and Lake Michigan were one-half 
percent ice covered, while Lake Huron had one percent ice. Lake Erie was not 
reporting any ice as of Nov. 20, 2014. 
 Decent early season ice coverage records date back to 1973. Last Friday was 
the earliest date that all three Great Lakes already had ice since the better 
reporting of early season ice began.
 Lake Superior actually had ice forming on November 15th of this year. That is 
the earliest ice on Lake Superior in the good data set.
 Lakes Superior, Michigan and Huron had ice 10 days earlier this year than last 
year.
 Lake Superior only had five and a half months without any ice on the lake.

 Chris Cla http://connect.mlive.com/staff/cclark/photos.html


















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