GREAT LAKES ENVIRONMENTAL RESEARCH LABORATORY, NOAA Climate Data Modernization Project National Weather Service Historical Great Lakes Ice Reports for Winters 1899 - 1970 Site No. 089, Approximate Location: 46.48 N. Latitude, 84.37 W. Longitude Site Name Soo Locks on St. Marys River ---------------------------------------------------------------------------------------------------------- Year Mo Da T1 T2 C1 T1C1 T2C1 C2 T1C2 T2C2 C3 T1C3 T2C3 IMAGE Supplemental Information ---------------------------------------------------------------------------------------------------------- 1901 4 28 -1 -1 OW -1 -1 -1 -1 -1 -1 018.TIF 1957 3 4 22 24 -1 -1 -1 -1 -1 -1 409.TIF CANADIAN CANAL 1965 4 5 11 -1 -1 -1 -1 -1 -1 -1 479.TIF W OF LOCKS 1966 3 21 -1 -1 OW -1 -1 -1 -1 -1 -1 486.TIF CHANNEL: 4Mi W OF LOCKS 1966 3 21 -1 -1 OW -1 -1 -1 -1 -1 -1 486.TIF 8Mi E OF LOCKS 1969 3 24 -1 -1 OW -1 -1 -1 -1 -1 -1 507.TIF LOCK APPROACHES 1969 3 31 -1 -1 OW -1 -1 -1 -1 -1 -1 508.TIF APPROACHES TO LOCKS 1969 4 14 -1 -1 OW -1 -1 -1 -1 -1 -1 510.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.