GREAT LAKES ENVIRONMENTAL RESEARCH LABORATORY, NOAA Climate Data Modernization Project National Weather Service Historical Great Lakes Ice Reports for Winters 1899 - 1970 Site No. 104, Approximate Location: 46.25 N. Latitude, 84.23 W. Longitude Site Name Sawmill Point on St. Marys River ---------------------------------------------------------------------------------------------------------- Year Mo Da T1 T2 C1 T1C1 T2C1 C2 T1C2 T2C2 C3 T1C3 T2C3 IMAGE Supplemental Information ---------------------------------------------------------------------------------------------------------- 1944 3 13 17 -1 IN -1 -1 -1 -1 -1 -1 309.TIF 1944 3 20 17 -1 -1 -1 -1 -1 -1 -1 310.TIF 1947 3 31 20 -1 -1 -1 -1 -1 -1 -1 330.TIF 1947 4 7 20 -1 SO -1 -1 -1 -1 -1 -1 331.TIF 1951 3 12 14 -1 -1 -1 -1 -1 -1 -1 361.TIF 1956 2 27 8 12 SC -1 -1 -1 -1 -1 -1 397.TIF CHANNEL: TO BELOW PIPE ISLAND 1956 3 5 12 18 CL -1 -1 SI 6 -1 SC -1 -1 399.TIF 8 1956 3 5 -1 -1 HF -1 -1 -1 -1 -1 -1 399.TIF TO BELOW PIPE ISLAND 1956 3 12 -1 -1 IP -1 -1 SC -1 -1 -1 -1 401.TIF TO LOWER END OF PIPE ISLAND 1956 3 19 -1 -1 IP -1 -1 -1 -1 -1 -1 402.TIF TO LOWER END OF PIPE ISLAND 1956 3 26 18 22 FD -1 -1 RI -1 -1 -1 -1 403.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.