GREAT LAKES ENVIRONMENTAL RESEARCH LABORATORY, NOAA Climate Data Modernization Project National Weather Service Historical Great Lakes Ice Reports for Winters 1899 - 1970 Site No. 125, Approximate Location: 45.87 N. Latitude, 84.73 W. Longitude Site Name St. Ignace on Lake Huron ---------------------------------------------------------------------------------------------------------- Year Mo Da T1 T2 C1 T1C1 T2C1 C2 T1C2 T2C2 C3 T1C3 T2C3 IMAGE Supplemental Information ---------------------------------------------------------------------------------------------------------- 1901 4 9 -1 -1 BK -1 -1 -1 -1 -1 -1 016.TIF TO MACKINAC ISLAND (CUT) 1910 4 5 -1 -1 DI -1 -1 -1 -1 -1 -1 076.TIF STRAITS 1911 3 28 -1 -1 BK -1 -1 -1 -1 -1 -1 080.TIF 1912 3 5 -1 -1 SO -1 -1 -1 -1 -1 -1 082.TIF 1913 3 4 24 -1 SO -1 -1 -1 -1 -1 -1 090.TIF 1914 3 24 14 -1 NC -1 -1 -1 -1 -1 -1 101.TIF 1914 3 31 10 -1 RT -1 -1 -1 -1 -1 -1 102.TIF 1915 3 23 -1 -1 RT -1 -1 -1 -1 -1 -1 108.TIF 1915 4 6 9 -1 -1 -1 -1 -1 -1 -1 110.TIF 1920 3 30 -1 -1 IP -1 -1 -1 -1 -1 -1 143.TIF 1931 4 7 -1 -1 OW -1 -1 -1 -1 -1 -1 214.TIF TO MACKINAC ISLAND 1933 4 11 -1 -1 IP -1 -1 RT -1 -1 -1 -1 225.TIF W TO WHITE SHOALS LIGHTHOUSE 1948 3 1 -1 -1 IP -1 -1 -1 -1 -1 -1 334.TIF 1965 2 23 -1 -1 IR -1 -1 SW -1 -1 -1 -1 473.TIF TO MACKINAC ISLAND ---------------------------------------------------------------------------------------------------------- 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.