GREAT LAKES ENVIRONMENTAL RESEARCH LABORATORY, NOAA Climate Data Modernization Project National Weather Service Historical Great Lakes Ice Reports for Winters 1899 - 1970 Site No. 276, Approximate Location: 45.00 N. Latitude, 86.00 W. Longitude Site Name Manitou Passage on Lake Michigan ---------------------------------------------------------------------------------------------------------- Year Mo Da T1 T2 C1 T1C1 T2C1 C2 T1C2 T2C2 C3 T1C3 T2C3 IMAGE Supplemental Information ---------------------------------------------------------------------------------------------------------- 1933 4 4 -1 -1 FD -1 -1 DI -1 -1 -1 -1 224.TIF 1934 4 3 -1 -1 FD -1 -1 DI -1 -1 -1 -1 232.TIF 1940 3 18 -1 -1 OW -1 -1 -1 -1 -1 -1 279.TIF NORTH TO GRAYS REEF 1943 4 26 -1 -1 HF -1 -1 BK -1 -1 -1 -1 306.TIF TO HOG ISLAND 1944 3 27 -1 -1 OW -1 -1 -1 -1 -1 -1 311.TIF 1948 3 29 -1 -1 OW -1 -1 -1 -1 -1 -1 338.TIF NORTH BEYOND FOXES ---------------------------------------------------------------------------------------------------------- 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.