GREAT LAKES ENVIRONMENTAL RESEARCH LABORATORY, NOAA Climate Data Modernization Project
 National Weather Service Historical Great Lakes Ice Reports for Winters 1899 - 1970

 Site No. 239, Approximate Location: 45.74 N. Latitude, 85.65 W. Longitude
 Site Name  High Island                    on Lake Michigan     
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 Year Mo Da   T1   T2   C1  T1C1 T2C1  C2  T1C2 T2C2  C3 T1C3 T2C3  IMAGE   Supplemental Information
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 1923  4 10   -1   -1   OW   -1   -1        -1   -1       -1   -1  160.TIF   WEST OF ISLAND                  

 1949  3 14   -1   -1   DI   -1   -1   WI   -1   -1       -1   -1  343.TIF                                   

 1950  4  3   -1   -1   SW   -1   -1        -1   -1       -1   -1  354.TIF   TO GARDEN ISLAND                

 1951  3  5   -1   -1   OW   -1   -1        -1   -1       -1   -1  360.TIF   TO THE W & SW                   
 1951  3 12   -1   -1   HF   -1   -1        -1   -1       -1   -1  361.TIF                                   

 1956  2 27   -1   -1   OW   -1   -1        -1   -1       -1   -1  397.TIF   WEST OF ISLAND                  

 1963  3 18   20   60   FS   -1   -1   IJ   -1   -1   WI  -1   -1  459.TIF   TO LANSING SHOAL                
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 Ice thickness is in inches, -1 = no thickness reported, see report for ice conditon codes.
 T1 = ice thickness or part of a range if T2 is present,  C1 = primary condtion of ice.
 T1C1 = thickness of C1 or part of range if T2C1 is presnet.
 C2, T1C2, T2C2, C3, T1C3, T2C3 are secondary and ternary ice conditon and condition thickness.