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

 Site No. 230, Approximate Location: 45.79 N. Latitude, 85.36 W. Longitude
 Site Name  Hog 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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 1944  3  6    3    5        -1   -1        -1   -1       -1   -1  308.TIF   TO LANSING SHOAL                
 1944  3 27   -1   -1   IP   -1   -1   BV   -1   -1       -1   -1  311.TIF   EASTWARD                        
 1944  3 27   -1   -1   IP   -1   -1        -1   -1       -1   -1  311.TIF   SOUTH: TO 12Mi FROM 7 MILE POI  

 1948  3 15   -1   -1   OW   -1   -1        -1   -1       -1   -1  336.TIF   SOUTHWARD                       
 1948  3 15   -1   -1   SO   -1   -1   SC   -1   -1       -1   -1  336.TIF   WESTWARD                        
 1948  3 22   -1   -1   SW   -1   -1        -1   -1       -1   -1  337.TIF                                   

 1949  2 28   -1   -1   SW   -1   -1        -1   -1       -1   -1  526.TIF                                   
 1949  3  7   -1   -1   SW   -1   -1        -1   -1       -1   -1  341.TIF                                   
 1949  3 14   -1   -1   DI   -1   -1   WI   -1   -1       -1   -1  343.TIF                                   

 1950  3  6   -1   -1   OW   -1   -1        -1   -1       -1   -1  350.TIF                                   
 1950  3 13   -1   -1   WI   -1   -1        -1   -1       -1   -1  351.TIF   REEF                            
 1950  3 20   -1   -1   SW   -1   -1        -1   -1       -1   -1  352.TIF                                   
 1950  3 27   -1   -1   SW   -1   -1        -1   -1       -1   -1  353.TIF                                   
 1950  4  3   -1   -1   OW   -1   -1   BV   -1   -1       -1   -1  354.TIF   SOUTHWARD                       
 1950  4 10   -1   -1   HF   -1   -1        -1   -1       -1   -1  355.TIF   TO BEAVER ISLAND                

 1951  3  5   -1   -1   OW   -1   -1   LF   -1   -1       -1   -1  360.TIF   CHANNEL NORTH OF ISLAND         
 1951  3 12   -1   -1   HF   -1   -1        -1   -1       -1   -1  361.TIF                                   

 1952  3 31   -1   -1   HF   -1   -1   WI   -1   -1       -1   -1  372.TIF                                   

 1958  3 24   -1   -1   FD   -1   -1        -1   -1       -1   -1  420.TIF                                   

 1966  3 21   10   12   BK   -1   -1        -1   -1       -1   -1  486.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.