GREAT LAKES ENVIRONMENTAL RESEARCH LABORATORY, NOAA Climate Data Modernization Project National Weather Service Historical Great Lakes Ice Reports for Winters 1899 - 1970 Site No. 030, Approximate Location: 47.22 N. Latitude, 88.62 W. Longitude Site Name Ship Canal on Lake Superior ---------------------------------------------------------------------------------------------------------- Year Mo Da T1 T2 C1 T1C1 T2C1 C2 T1C2 T2C2 C3 T1C3 T2C3 IMAGE Supplemental Information ---------------------------------------------------------------------------------------------------------- 1901 3 5 -1 -1 SO -1 -1 -1 -1 -1 -1 011.TIF TO THE ENTRY 1901 4 8 -1 -1 OW -1 -1 -1 -1 -1 -1 016.TIF 1901 4 15 -1 -1 OW -1 -1 -1 -1 -1 -1 017.TIF 1908 3 17 -1 -1 FD -1 -1 -1 -1 -1 -1 059.TIF HOUGHTON: TO 1/2Mi OUT 1908 3 24 -1 -1 DI -1 -1 -1 -1 -1 -1 060.TIF 1908 3 24 -1 -1 FD -1 -1 -1 -1 -1 -1 060.TIF ALONG SHORE: TO 8Mi OUT 1908 3 31 -1 -1 FD -1 -1 BK -1 -1 -1 -1 524.TIF TO 4Mi OUT 1935 4 9 -1 -1 OW -1 -1 -1 -1 -1 -1 242.TIF 1938 3 28 -1 -1 OW -1 -1 -1 -1 -1 -1 264.TIF 1938 4 4 -1 -1 RT -1 -1 -1 -1 -1 -1 265.TIF 1939 4 10 -1 -1 OW -1 -1 -1 -1 -1 -1 273.TIF 4Mi OUT ---------------------------------------------------------------------------------------------------------- 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.