GREAT LAKES ENVIRONMENTAL RESEARCH LABORATORY, NOAA Climate Data Modernization Project National Weather Service Historical Great Lakes Ice Reports for Winters 1899 - 1970 Site No. 300, Approximate Location: 44.15 N. Latitude, 87.57 W. Longitude Site Name Two Rivers Harbor on Lake Michigan ---------------------------------------------------------------------------------------------------------- Year Mo Da T1 T2 C1 T1C1 T2C1 C2 T1C2 T2C2 C3 T1C3 T2C3 IMAGE Supplemental Information ---------------------------------------------------------------------------------------------------------- 1913 3 4 20 -1 -1 -1 -1 -1 -1 -1 090.TIF UPPER HABOR 1914 3 3 12 -1 BK -1 -1 -1 -1 -1 -1 098.TIF 1915 3 16 -1 -1 OW -1 -1 -1 -1 -1 -1 107.TIF 1916 3 7 15 -1 -1 -1 -1 -1 -1 -1 113.TIF 1916 3 14 -1 -1 BK -1 -1 -1 -1 -1 -1 114.TIF 1917 3 6 26 -1 -1 -1 -1 -1 -1 -1 120.TIF UPPER HABOR 1917 3 13 26 -1 -1 -1 -1 -1 -1 -1 121.TIF 1917 3 20 18 -1 -1 -1 -1 -1 -1 -1 122.TIF UPPER HABOR 1918 3 5 -1 -1 BK -1 -1 -1 -1 -1 -1 128.TIF LOWER HARBOR 1920 3 9 26 -1 -1 -1 -1 -1 -1 -1 140.TIF UPPER HABOR 1933 3 14 2 -1 -1 -1 -1 -1 -1 -1 221.TIF 1947 3 10 -1 -1 OW -1 -1 -1 -1 -1 -1 327.TIF 1947 3 24 -1 -1 OW -1 -1 -1 -1 -1 -1 329.TIF 1948 3 8 -1 -1 PI -1 -1 WI -1 -1 -1 -1 335.TIF 1948 3 15 -1 -1 OW -1 -1 -1 -1 -1 -1 336.TIF 1948 3 22 -1 -1 OW -1 -1 -1 -1 -1 -1 337.TIF 1950 3 20 -1 -1 OW -1 -1 -1 -1 -1 -1 352.TIF 1950 3 27 -1 -1 OW -1 -1 -1 -1 -1 -1 353.TIF 1951 3 5 -1 -1 LI -1 -1 -1 -1 -1 -1 360.TIF 1952 3 3 -1 -1 OW -1 -1 -1 -1 -1 -1 368.TIF 1953 2 24 -1 -1 OW -1 -1 -1 -1 -1 -1 375.TIF 1953 3 9 3 -1 LF -1 -1 PN -1 -1 -1 -1 376.TIF 1957 2 25 2 -1 SI -1 -1 -1 -1 -1 -1 407.TIF INNER HARBOR 1957 3 11 -1 -1 LI -1 -1 -1 -1 -1 -1 411.TIF 1958 3 3 -1 -1 OW -1 -1 -1 -1 -1 -1 417.TIF 1958 3 17 14 -1 IP -1 -1 BV -1 -1 -1 -1 419.TIF 1960 2 19 2 -1 SI -1 -1 -1 -1 -1 -1 523.TIF 1960 3 7 -1 -1 LI -1 -1 -1 -1 -1 -1 434.TIF 1960 3 14 2 -1 SI -1 -1 -1 -1 -1 -1 435.TIF 1962 2 26 4 -1 PN -1 -1 -1 -1 -1 -1 447.TIF 1962 3 5 -1 -1 DI -1 -1 PN -1 -1 -1 -1 448.TIF 1962 3 12 -1 -1 DI -1 -1 PN -1 -1 -1 -1 449.TIF 1963 3 4 3 -1 -1 -1 -1 -1 -1 -1 457.TIF 1963 3 18 -1 -1 DI -1 -1 PN -1 -1 -1 -1 459.TIF 1964 3 2 2 -1 -1 -1 -1 -1 -1 -1 466.TIF (20% ICE COVER) 1964 3 9 -1 -1 OW -1 -1 -1 -1 -1 -1 467.TIF 1966 3 7 1 -1 -1 -1 -1 -1 -1 -1 484.TIF 1966 3 14 -1 -1 OW -1 -1 -1 -1 -1 -1 485.TIF 1969 2 24 -1 -1 OW -1 -1 -1 -1 -1 -1 503.TIF 1969 3 3 -1 -1 OW -1 -1 -1 -1 -1 -1 504.TIF 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 10 -1 -1 OW -1 -1 -1 -1 -1 -1 511.TIF 1970 3 24 -1 -1 OW -1 -1 -1 -1 -1 -1 513.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.