GREAT LAKES ENVIRONMENTAL RESEARCH LABORATORY, NOAA Climate Data Modernization Project National Weather Service Historical Great Lakes Ice Reports for Winters 1899 - 1970 Site No. 003, Approximate Location: 48.75 N. Latitude, 86.39 W. Longitude Site Name Marathon Harbor on Lake Superior ---------------------------------------------------------------------------------------------------------- Year Mo Da T1 T2 C1 T1C1 T2C1 C2 T1C2 T2C2 C3 T1C3 T2C3 IMAGE Supplemental Information ---------------------------------------------------------------------------------------------------------- 1953 2 24 -1 -1 OW -1 -1 -1 -1 -1 -1 375.TIF 1953 3 16 -1 -1 OW -1 -1 -1 -1 -1 -1 378.TIF 1953 3 23 -1 -1 DI -1 -1 BK -1 -1 -1 -1 379.TIF 1955 2 28 4 6 BK -1 -1 -1 -1 -1 -1 389.TIF 1955 2 28 -1 -1 OW -1 -1 -1 -1 -1 -1 389.TIF PENINSULA TO HAWKINS ISLAND 1955 3 21 -1 -1 RT -1 -1 -1 -1 -1 -1 394.TIF 1965 3 8 6 8 -1 -1 -1 -1 -1 -1 475.TIF 1965 3 29 12 14 -1 -1 -1 -1 -1 -1 478.TIF 1969 2 24 9 -1 -1 -1 -1 -1 -1 -1 503.TIF 1969 3 24 -1 -1 OW -1 -1 -1 -1 -1 -1 507.TIF ---------------------------------------------------------------------------------------------------------- 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.