GREAT LAKES ENVIRONMENTAL RESEARCH LABORATORY, NOAA Climate Data Modernization Project National Weather Service Historical Great Lakes Ice Reports for Winters 1899 - 1970 Site No. 307, Approximate Location: 43.96 N. Latitude, 86.45 W. Longitude Site Name Ludington Harbor on Lake Michigan ---------------------------------------------------------------------------------------------------------- Year Mo Da T1 T2 C1 T1C1 T2C1 C2 T1C2 T2C2 C3 T1C3 T2C3 IMAGE Supplemental Information ---------------------------------------------------------------------------------------------------------- 1900 3 13 20 -1 -1 -1 -1 -1 -1 -1 005.TIF 1900 3 13 -1 -1 SI -1 -1 -1 -1 -1 -1 005.TIF HARBOR ENTRANCE 1900 3 20 -1 -1 SI -1 -1 -1 -1 -1 -1 006.TIF HARBOR ENTRANCE 1900 4 3 -1 -1 OW -1 -1 -1 -1 -1 -1 008.TIF 1901 3 12 -1 -1 SI -1 -1 -1 -1 -1 -1 012.TIF 1901 3 19 -1 -1 LI -1 -1 SI -1 -1 -1 -1 013.TIF HARBOR ENTRANCE 1902 3 4 -1 -1 DI -1 -1 -1 -1 -1 -1 019.TIF HARBOR ENTRANCE 1902 3 11 -1 -1 OW -1 -1 -1 -1 -1 -1 020.TIF TO PERE MARQUETTE DOCKS 1903 3 3 -1 -1 DI -1 -1 -1 -1 -1 -1 024.TIF 1903 3 24 -1 -1 OW -1 -1 -1 -1 -1 -1 027.TIF 1904 3 8 -1 -1 OW -1 -1 -1 -1 -1 -1 030.TIF 1905 3 7 -1 -1 OW -1 -1 -1 -1 -1 -1 039.TIF TO PERE MARQUETTE DOCKS 1905 3 14 -1 -1 OW -1 -1 -1 -1 -1 -1 040.TIF 1907 3 5 -1 -1 OW -1 -1 -1 -1 -1 -1 051.TIF LOWER END 1908 3 3 15 -1 -1 -1 -1 -1 -1 -1 057.TIF UPPER HARBOR 1908 3 3 -1 -1 OW -1 -1 -1 -1 -1 -1 057.TIF LOWER HARBOR 1908 3 31 -1 -1 OW -1 -1 -1 -1 -1 -1 524.TIF 1909 3 16 8 -1 -1 -1 -1 -1 -1 -1 066.TIF UPPER END OF HARBOR 1909 3 30 -1 -1 OW -1 -1 -1 -1 -1 -1 068.TIF 1910 3 8 18 -1 -1 -1 -1 -1 -1 -1 072.TIF UPPER HARBOR 1911 3 7 14 -1 -1 -1 -1 -1 -1 -1 077.TIF 1911 3 7 -1 -1 OW -1 -1 -1 -1 -1 -1 077.TIF LOWER END 1912 3 5 24 -1 -1 -1 -1 -1 -1 -1 082.TIF 1912 3 12 24 -1 -1 -1 -1 -1 -1 -1 083.TIF 1912 3 19 24 -1 -1 -1 -1 -1 -1 -1 084.TIF 1913 3 4 20 -1 -1 -1 -1 -1 -1 -1 090.TIF INNER HARBOR 1913 3 11 -1 -1 BK -1 -1 -1 -1 -1 -1 091.TIF 1913 3 25 11 -1 RT -1 -1 -1 -1 -1 -1 093.TIF 1914 3 3 16 -1 -1 -1 -1 -1 -1 -1 098.TIF INNER HARBOR 1914 3 10 16 -1 -1 -1 -1 -1 -1 -1 099.TIF INNER HARBOR 1914 3 17 15 -1 -1 -1 -1 -1 -1 -1 100.TIF INNER HARBOR 1914 3 24 14 -1 -1 -1 -1 -1 -1 -1 101.TIF INNER HARBOR 1914 3 31 -1 -1 RT -1 -1 -1 -1 -1 -1 102.TIF INNER HARBOR 1914 4 7 -1 -1 OW -1 -1 -1 -1 -1 -1 103.TIF INNER HARBOR 1915 3 9 18 -1 -1 -1 -1 -1 -1 -1 106.TIF 1918 3 5 -1 -1 OW -1 -1 -1 -1 -1 -1 128.TIF 1918 3 12 -1 -1 OW -1 -1 -1 -1 -1 -1 129.TIF 1918 3 19 -1 -1 LI -1 -1 -1 -1 -1 -1 130.TIF 1919 3 4 -1 -1 LI -1 -1 -1 -1 -1 -1 136.TIF 1920 4 10 -1 -1 LI -1 -1 -1 -1 -1 -1 145.TIF 1932 3 15 -1 -1 SI -1 -1 -1 -1 -1 -1 216.TIF 1934 3 13 -1 -1 SI -1 -1 -1 -1 -1 -1 229.TIF 1937 3 15 12 -1 -1 -1 -1 -1 -1 -1 255.TIF 1937 4 5 6 -1 BK -1 -1 RT -1 -1 -1 -1 258.TIF 1938 3 7 13 -1 -1 -1 -1 -1 -1 -1 261.TIF 1939 3 6 14 -1 -1 -1 -1 -1 -1 -1 268.TIF 1943 3 1 -1 -1 BK -1 -1 -1 -1 -1 -1 298.TIF 1943 3 8 -1 -1 SI -1 -1 -1 -1 -1 -1 299.TIF 1943 3 15 -1 -1 SI -1 -1 -1 -1 -1 -1 300.TIF 1943 3 22 -1 -1 SI -1 -1 -1 -1 -1 -1 301.TIF 1944 3 6 -1 -1 IP -1 -1 -1 -1 -1 -1 308.TIF 1947 3 10 6 36 SI -1 -1 -1 -1 -1 -1 327.TIF 1947 3 10 -1 -1 OW -1 -1 -1 -1 -1 -1 327.TIF CHANNEL 1947 3 17 -1 -1 OW -1 -1 -1 -1 -1 -1 328.TIF 1947 3 24 -1 -1 OW -1 -1 -1 -1 -1 -1 329.TIF 1948 3 1 18 -1 -1 -1 -1 -1 -1 -1 334.TIF 1948 3 8 -1 -1 LF -1 -1 DI -1 -1 -1 -1 335.TIF 1948 3 22 -1 -1 LF -1 -1 WI -1 -1 -1 -1 337.TIF 1949 3 21 18 20 DI -1 -1 BK -1 -1 -1 -1 345.TIF 1950 3 20 -1 -1 OW -1 -1 -1 -1 -1 -1 352.TIF 1950 3 27 18 -1 -1 -1 -1 -1 -1 -1 353.TIF 1951 3 5 -1 -1 OW -1 -1 -1 -1 -1 -1 360.TIF 1953 3 2 -1 -1 OW -1 -1 -1 -1 -1 -1 528.TIF 1957 2 25 -1 -1 DI -1 -1 PN -1 -1 -1 -1 407.TIF HARBOR CHANNEL 1957 3 4 -1 -1 OW -1 -1 -1 -1 -1 -1 409.TIF 1957 3 11 -1 -1 OW -1 -1 -1 -1 -1 -1 411.TIF 1958 3 10 -1 -1 OW -1 -1 -1 -1 -1 -1 418.TIF E END OF PIER TO 1/2Mi SOUTH 1959 3 16 16 20 SW -1 -1 -1 -1 -1 -1 426.TIF 1959 3 23 -1 -1 PN -1 -1 SI -1 -1 -1 -1 427.TIF 1959 3 30 -1 -1 OW -1 -1 -1 -1 -1 -1 429.TIF TO SLIP #3 1960 2 29 -1 -1 LI -1 -1 -1 -1 -1 -1 522.TIF 1960 3 7 -1 -1 LI -1 -1 -1 -1 -1 -1 434.TIF 1960 3 14 -1 -1 OW -1 -1 -1 -1 -1 -1 435.TIF 1960 3 21 -1 -1 OW -1 -1 -1 -1 -1 -1 436.TIF 1961 2 27 -1 -1 OW -1 -1 -1 -1 -1 -1 440.TIF HARBOR & FERRY SLIPS 1964 2 24 -1 -1 OW -1 -1 -1 -1 -1 -1 465.TIF 1964 3 2 -1 -1 PN -1 -1 -1 -1 -1 -1 466.TIF 1964 3 9 -1 -1 OW -1 -1 -1 -1 -1 -1 467.TIF 1965 3 1 10 12 -1 -1 -1 -1 -1 -1 474.TIF 1965 3 8 -1 -1 OW -1 -1 -1 -1 -1 -1 475.TIF 1965 3 15 -1 -1 OW -1 -1 -1 -1 -1 -1 476.TIF 1965 3 29 -1 -1 OW -1 -1 -1 -1 -1 -1 478.TIF 1965 4 12 -1 -1 OW -1 -1 -1 -1 -1 -1 480.TIF 1966 2 28 6 10 -1 -1 -1 -1 -1 -1 483.TIF 1966 3 7 -1 -1 OW -1 -1 -1 -1 -1 -1 484.TIF 1967 3 6 -1 -1 DI -1 -1 -1 -1 -1 -1 490.TIF 1967 3 13 12 14 PN -1 -1 -1 -1 -1 -1 491.TIF 1967 3 20 -1 -1 DI -1 -1 PN -1 -1 -1 -1 492.TIF 1968 3 4 3 -1 -1 -1 -1 -1 -1 -1 520.TIF 1968 3 11 -1 -1 OW -1 -1 -1 -1 -1 -1 497.TIF 1968 3 18 -1 -1 OW -1 -1 -1 -1 -1 -1 498.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 3 8 -1 -1 -1 -1 -1 -1 -1 518.TIF (50% ICE COVER) 1970 3 10 5 -1 -1 -1 -1 -1 -1 -1 511.TIF (20% ICE COVER) 1970 3 17 12 -1 -1 -1 -1 -1 -1 -1 512.TIF (30% ICE COVER) 1970 3 24 6 -1 -1 -1 -1 -1 -1 -1 513.TIF (20% ICE COVER) ---------------------------------------------------------------------------------------------------------- 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.