GREAT LAKES ENVIRONMENTAL RESEARCH LABORATORY, NOAA Climate Data Modernization Project National Weather Service Historical Great Lakes Ice Reports for Winters 1899 - 1970 Site No. 102, Approximate Location: 46.28 N. Latitude, 84.16 W. Longitude Site Name Rock Cut on St. Marys River ---------------------------------------------------------------------------------------------------------- Year Mo Da T1 T2 C1 T1C1 T2C1 C2 T1C2 T2C2 C3 T1C3 T2C3 IMAGE Supplemental Information ---------------------------------------------------------------------------------------------------------- 1946 3 18 -1 -1 SW -1 -1 -1 -1 -1 -1 320.TIF IN CHANNEL 1949 2 28 -1 -1 OW -1 -1 -1 -1 -1 -1 526.TIF 1949 3 7 -1 -1 OW -1 -1 -1 -1 -1 -1 341.TIF 1950 3 20 -1 -1 SW -1 -1 -1 -1 -1 -1 352.TIF 1950 3 27 -1 -1 OW -1 -1 -1 -1 -1 -1 353.TIF 1952 4 14 -1 -1 IJ -1 -1 -1 -1 -1 -1 374.TIF 1953 3 9 -1 -1 OW -1 -1 -1 -1 -1 -1 377.TIF 1953 3 16 -1 -1 OW -1 -1 -1 -1 -1 -1 378.TIF 1953 3 23 -1 -1 OW -1 -1 -1 -1 -1 -1 379.TIF 1Mi N OF ROCK CUT TO 1Mi S OF 1954 3 15 -1 -1 OW -1 -1 -1 -1 -1 -1 383.TIF 1956 3 26 -1 -1 SW -1 -1 -1 -1 -1 -1 403.TIF LOWER END 1957 3 4 -1 -1 OW -1 -1 -1 -1 -1 -1 409.TIF 1957 3 4 18 22 CL -1 -1 SC 8 16 -1 -1 409.TIF TO DETOUR 1957 3 25 -1 -1 OW -1 -1 -1 -1 -1 -1 413.TIF 1957 3 25 22 -1 SO -1 -1 -1 -1 -1 -1 413.TIF TO DETOUR 1958 3 10 -1 -1 OW -1 -1 -1 -1 -1 -1 418.TIF 1958 3 17 -1 -1 OW -1 -1 -1 -1 -1 -1 419.TIF 1962 3 26 -1 -1 SW -1 -1 -1 -1 -1 -1 451.TIF 1963 4 1 -1 -1 OW -1 -1 -1 -1 -1 -1 461.TIF 1964 3 2 -1 -1 OW -1 -1 -1 -1 -1 -1 466.TIF 1966 3 7 -1 -1 LI -1 -1 -1 -1 -1 -1 484.TIF 1966 3 21 -1 -1 OW -1 -1 -1 -1 -1 -1 486.TIF TO 1Mi SOUTH 1967 3 13 -1 -1 OW -1 -1 -1 -1 -1 -1 491.TIF 1967 3 20 -1 -1 OW -1 -1 -1 -1 -1 -1 492.TIF 1967 3 27 -1 -1 OW -1 -1 -1 -1 -1 -1 493.TIF 1967 4 3 -1 -1 OW -1 -1 -1 -1 -1 -1 494.TIF TO LOOKOUT #4 1967 4 10 -1 -1 OW -1 -1 -1 -1 -1 -1 495.TIF TO LOOKOUT #4 ---------------------------------------------------------------------------------------------------------- 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.