GREAT LAKES ENVIRONMENTAL RESEARCH LABORATORY, NOAA Climate Data Modernization Project National Weather Service Historical Great Lakes Ice Reports for Winters 1899 - 1970 Site No. 156, Approximate Location: 45.05 N. Latitude, 83.43 W. Longitude Site Name Thunder Bay Island Harbor, MI on Lake Huron ---------------------------------------------------------------------------------------------------------- Year Mo Da T1 T2 C1 T1C1 T2C1 C2 T1C2 T2C2 C3 T1C3 T2C3 IMAGE Supplemental Information ---------------------------------------------------------------------------------------------------------- 1912 3 26 26 -1 -1 -1 -1 -1 -1 -1 085.TIF 1914 3 3 -1 -1 OW -1 -1 -1 -1 -1 -1 098.TIF 1916 3 7 2 -1 -1 -1 -1 -1 -1 -1 113.TIF 1916 3 28 5 -1 -1 -1 -1 -1 -1 -1 116.TIF 1918 3 5 30 -1 -1 -1 -1 -1 -1 -1 128.TIF 1947 3 31 -1 -1 DI -1 -1 -1 -1 -1 -1 330.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.