GREAT LAKES ENVIRONMENTAL RESEARCH LABORATORY, NOAA Climate Data Modernization Project National Weather Service Historical Great Lakes Ice Reports for Winters 1899 - 1970 Site No. 347, Approximate Location: 41.71 N. Latitude, 86.89 W. Longitude Site Name Michigan City on Lake Michigan ---------------------------------------------------------------------------------------------------------- Year Mo Da T1 T2 C1 T1C1 T2C1 C2 T1C2 T2C2 C3 T1C3 T2C3 IMAGE Supplemental Information ---------------------------------------------------------------------------------------------------------- 1899 4 11 -1 -1 DI -1 -1 -1 -1 -1 -1 529.TIF LAKE 1900 3 13 -1 -1 FD -1 -1 DI -1 -1 -1 -1 005.TIF LAKE 1900 3 27 -1 -1 HF -1 -1 DI -1 -1 -1 -1 007.TIF LAKE 1900 4 3 -1 -1 FD -1 -1 DI -1 -1 -1 -1 008.TIF LAKE 1900 4 10 -1 -1 LF -1 -1 DI -1 -1 -1 -1 009.TIF LAKE 1901 3 12 -1 -1 LI -1 -1 -1 -1 -1 -1 012.TIF LAKE 1901 3 19 -1 -1 LF -1 -1 -1 -1 -1 -1 013.TIF JUST OFF THE HARBOR 1901 3 19 -1 -1 LI -1 -1 -1 -1 -1 -1 013.TIF LAKE 1901 3 26 -1 -1 OW -1 -1 -1 -1 -1 -1 014.TIF LAKE 1904 3 1 -1 -1 HF -1 -1 -1 -1 -1 -1 029.TIF LAKE 1904 3 15 -1 -1 HF -1 -1 DI -1 -1 -1 -1 031.TIF LAKE 1904 3 22 -1 -1 FD -1 -1 DI -1 -1 -1 -1 032.TIF 1904 4 5 -1 -1 FD -1 -1 BV -1 -1 -1 -1 034.TIF 1904 4 12 -1 -1 OW -1 -1 -1 -1 -1 -1 035.TIF 1905 3 14 -1 -1 FD -1 -1 -1 -1 -1 -1 040.TIF LAKE 1907 3 5 -1 -1 LI -1 -1 -1 -1 -1 -1 051.TIF LAKE 1908 3 3 -1 -1 FD -1 -1 BK -1 -1 LI -1 -1 057.TIF LAKE 1909 3 2 -1 -1 LI -1 -1 -1 -1 -1 -1 064.TIF LAKE 1909 3 9 -1 -1 FD -1 -1 -1 -1 -1 -1 065.TIF 1909 3 16 -1 -1 FD -1 -1 -1 -1 -1 -1 066.TIF 1909 3 23 -1 -1 FD -1 -1 -1 -1 -1 -1 067.TIF 1910 3 1 -1 -1 IP -1 -1 -1 -1 -1 -1 071.TIF LAKE 1910 3 8 -1 -1 FD -1 -1 -1 -1 -1 -1 072.TIF LAKE 1912 3 5 -1 -1 FD -1 -1 -1 -1 -1 -1 082.TIF LAKE 1913 3 4 -1 -1 FD -1 -1 -1 -1 -1 -1 090.TIF OUT TO SEVERAL MILES 1917 3 6 -1 -1 HF -1 -1 -1 -1 -1 -1 120.TIF LAKE 1917 3 20 -1 -1 OW -1 -1 -1 -1 -1 -1 122.TIF LAKE 1918 3 5 -1 -1 OW -1 -1 -1 -1 -1 -1 128.TIF LAKE 1919 3 4 -1 -1 LI -1 -1 SI -1 -1 -1 -1 136.TIF LAKE 1920 3 16 -1 -1 FD -1 -1 -1 -1 -1 -1 141.TIF LAKE 1926 3 30 -1 -1 FD -1 -1 -1 -1 -1 -1 180.TIF E SHORE: N TO BEYOND HOLLAND 1932 3 15 -1 -1 SI -1 -1 -1 -1 -1 -1 216.TIF SOUTH TO CHICAGO 1932 3 22 -1 -1 FD -1 -1 -1 -1 -1 -1 217.TIF TO 2Mi OUT 1932 4 5 -1 -1 LF -1 -1 -1 -1 -1 -1 218.TIF 1933 3 14 -1 -1 PI -1 -1 -1 -1 -1 -1 221.TIF EAST SHORE: NORTHWARD 1934 3 6 -1 -1 FD -1 -1 DI -1 -1 -1 -1 228.TIF 1934 3 20 -1 -1 LF -1 -1 -1 -1 -1 -1 230.TIF 1935 3 5 -1 -1 SI -1 -1 PI -1 -1 -1 -1 237.TIF TO 2Mi OUT 1935 3 19 -1 -1 FD -1 -1 PI -1 -1 -1 -1 239.TIF 1935 3 26 -1 -1 LF -1 -1 -1 -1 -1 -1 240.TIF 1936 3 10 -1 -1 LI -1 -1 -1 -1 -1 -1 244.TIF TO SOUTH END OF LAKE 1937 3 22 -1 -1 SI -1 -1 -1 -1 -1 -1 256.TIF TO 1Mi OUT 1937 3 29 -1 -1 SI -1 -1 -1 -1 -1 -1 257.TIF 1939 3 13 -1 -1 LI -1 -1 -1 -1 -1 -1 269.TIF TO FRANKFORT 1940 3 18 -1 -1 HF -1 -1 BV -1 -1 WI -1 -1 279.TIF 1941 3 3 -1 -1 HF -1 -1 -1 -1 -1 -1 285.TIF TO 10Mi OUT 1941 3 10 -1 -1 FD -1 -1 -1 -1 -1 -1 286.TIF LAKE 1941 3 10 -1 -1 IP -1 -1 -1 -1 -1 -1 286.TIF RIVER 1941 3 17 -1 -1 HF -1 -1 SI -1 -1 -1 -1 287.TIF 8Mi OUT 1941 3 24 -1 -1 IP -1 -1 BV -1 -1 -1 -1 288.TIF LAKE: WESTWARD 1941 3 24 -1 -1 SW -1 -1 -1 -1 -1 -1 288.TIF 2Mi TO THE NORTH 1942 3 16 -1 -1 IP -1 -1 -1 -1 -1 -1 293.TIF 2Mi DRAFT OUTSIDE BW 1943 3 8 -1 -1 DI -1 -1 BV -1 -1 -1 -1 299.TIF 1943 3 22 -1 -1 IP -1 -1 SW -1 -1 -1 -1 301.TIF TO FRANKFORT 1947 3 3 14 -1 -1 -1 -1 -1 -1 -1 326.TIF 1947 3 10 -1 -1 FD -1 -1 -1 -1 -1 -1 327.TIF TO 8Mi OUT 1947 3 24 -1 -1 LF -1 -1 -1 -1 -1 -1 329.TIF 1947 3 31 -1 -1 FD -1 -1 -1 -1 -1 -1 330.TIF TO SOUTH HAVEN 1948 3 8 -1 -1 FD -1 -1 -1 -1 -1 -1 335.TIF 20Mi NORTH 1957 2 25 18 -1 -1 -1 -1 -1 -1 -1 407.TIF FROM 15Mi N & E AND BEYOND 1958 2 24 15 -1 PN -1 -1 -1 -1 -1 -1 416.TIF RIVER 1960 2 19 -1 -1 IP -1 -1 BV -1 -1 -1 -1 523.TIF 1962 3 19 -1 -1 FS -1 -1 WI -1 -1 IJ -1 -1 450.TIF RIVER 1968 2 26 8 -1 -1 -1 -1 -1 -1 -1 521.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.