GREAT LAKES ENVIRONMENTAL RESEARCH LABORATORY, NOAA Climate Data Modernization Project National Weather Service Historical Great Lakes Ice Reports for Winters 1899 - 1970 Site No. 203, Approximate Location: 43.64 N. Latitude, 83.85 W. Longitude Site Name Bay City Harbor on Lake Huron ---------------------------------------------------------------------------------------------------------- Year Mo Da T1 T2 C1 T1C1 T2C1 C2 T1C2 T2C2 C3 T1C3 T2C3 IMAGE Supplemental Information ---------------------------------------------------------------------------------------------------------- 1901 3 5 12 -1 -1 -1 -1 -1 -1 -1 011.TIF 1907 3 5 12 15 -1 -1 -1 -1 -1 -1 051.TIF 1910 3 1 15 18 -1 -1 -1 -1 -1 -1 071.TIF 1916 3 7 10 12 -1 -1 -1 -1 -1 -1 113.TIF 1937 3 15 -1 -1 OW -1 -1 -1 -1 -1 -1 255.TIF 1941 3 10 -1 -1 RT -1 -1 SW -1 -1 -1 -1 286.TIF 1941 3 17 -1 -1 OW -1 -1 -1 -1 -1 -1 287.TIF 1943 3 22 -1 -1 OW -1 -1 -1 -1 -1 -1 301.TIF 1947 3 10 16 24 -1 -1 -1 -1 -1 -1 327.TIF 1947 3 17 22 -1 -1 -1 -1 -1 -1 -1 328.TIF 1957 3 4 17 -1 -1 -1 -1 -1 -1 -1 409.TIF 1958 3 3 18 -1 -1 -1 -1 -1 -1 -1 417.TIF 1959 3 16 20 -1 -1 -1 -1 -1 -1 -1 426.TIF 1963 3 18 24 30 SO -1 -1 -1 -1 -1 -1 459.TIF 1964 3 9 -1 -1 OW -1 -1 -1 -1 -1 -1 467.TIF 1969 3 3 3 -1 -1 -1 -1 -1 -1 -1 504.TIF (20% ICE COVER) 1969 3 10 -1 -1 OW -1 -1 -1 -1 -1 -1 505.TIF 1969 3 17 -1 -1 OW -1 -1 -1 -1 -1 -1 506.TIF 1969 3 24 -1 -1 OW -1 -1 -1 -1 -1 -1 507.TIF 1970 3 31 -1 -1 OW -1 -1 -1 -1 -1 -1 514.TIF 1970 4 7 -1 -1 OW -1 -1 -1 -1 -1 -1 515.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.