GREAT LAKES ENVIRONMENTAL RESEARCH LABORATORY, NOAA Climate Data Modernization Project National Weather Service Historical Great Lakes Ice Reports for Winters 1899 - 1970 Site No. 233, Approximate Location: 45.77 N. Latitude, 85.69 W. Longitude Site Name Trout Island on Lake Michigan ---------------------------------------------------------------------------------------------------------- Year Mo Da T1 T2 C1 T1C1 T2C1 C2 T1C2 T2C2 C3 T1C3 T2C3 IMAGE Supplemental Information ---------------------------------------------------------------------------------------------------------- 1948 3 15 -1 -1 OW -1 -1 -1 -1 -1 -1 336.TIF W OF ISLAND 1948 3 15 -1 -1 OW -1 -1 -1 -1 -1 -1 336.TIF WESTWARD 1948 3 22 -1 -1 OW -1 -1 -1 -1 -1 -1 337.TIF W OF ISLAND 1948 3 29 -1 -1 SW -1 -1 -1 -1 -1 -1 338.TIF WESTWARD 1950 4 3 -1 -1 OW -1 -1 -1 -1 -1 -1 354.TIF SOUTHWARD 1951 2 26 -1 -1 HF -1 -1 -1 -1 -1 -1 359.TIF 1951 3 5 -1 -1 OW -1 -1 -1 -1 -1 -1 360.TIF TO THE W & SW 1951 3 12 -1 -1 HF -1 -1 -1 -1 -1 -1 361.TIF 1952 3 17 -1 -1 WI -1 -1 -1 -1 -1 -1 370.TIF TO CASTLE POINT ---------------------------------------------------------------------------------------------------------- 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.