GREAT LAKES ENVIRONMENTAL RESEARCH LABORATORY, NOAA Climate Data Modernization Project National Weather Service Historical Great Lakes Ice Reports for Winters 1899 - 1970 Site No. 186, Approximate Location: 44.26 N. Latitude, 83.44 W. Longitude Site Name East Tawas Harbor on Lake Huron ---------------------------------------------------------------------------------------------------------- Year Mo Da T1 T2 C1 T1C1 T2C1 C2 T1C2 T2C2 C3 T1C3 T2C3 IMAGE Supplemental Information ---------------------------------------------------------------------------------------------------------- 1900 3 6 22 -1 -1 -1 -1 -1 -1 -1 004.TIF 1900 3 13 22 -1 NC -1 -1 -1 -1 -1 -1 005.TIF 1901 3 12 -1 -1 SO -1 -1 -1 -1 -1 -1 012.TIF 1901 3 26 -1 -1 BK -1 -1 NC -1 -1 -1 -1 014.TIF 1902 3 11 -1 -1 NC -1 -1 RT -1 -1 -1 -1 020.TIF 1902 3 18 -1 -1 BK -1 -1 -1 -1 -1 -1 021.TIF 1902 3 25 -1 -1 OW -1 -1 -1 -1 -1 -1 022.TIF 1903 3 10 8 10 DC -1 -1 -1 -1 -1 -1 025.TIF 1904 3 8 28 30 -1 -1 -1 -1 -1 -1 030.TIF 1904 3 15 -1 -1 NC -1 -1 -1 -1 -1 -1 031.TIF 1904 3 22 30 -1 -1 -1 -1 -1 -1 -1 032.TIF 1904 4 12 -1 -1 SL 6 -1 -1 -1 -1 -1 035.TIF 1904 4 26 -1 -1 OW -1 -1 -1 -1 -1 -1 037.TIF 1941 3 3 24 -1 -1 -1 -1 -1 -1 -1 285.TIF 1941 3 10 24 30 -1 -1 -1 -1 -1 -1 286.TIF 1941 3 24 24 30 -1 -1 -1 -1 -1 -1 288.TIF 1941 4 7 12 18 -1 -1 -1 -1 -1 -1 290.TIF 1942 3 9 17 -1 -1 -1 -1 -1 -1 -1 292.TIF 1942 3 23 17 -1 SO -1 -1 -1 -1 -1 -1 294.TIF 1943 3 15 10 30 -1 -1 -1 -1 -1 -1 300.TIF 1947 3 3 10 22 -1 -1 -1 -1 -1 -1 326.TIF 1947 3 10 10 22 -1 -1 -1 -1 -1 -1 327.TIF 1947 3 17 10 22 -1 -1 -1 -1 -1 -1 328.TIF 1947 3 24 10 22 SO -1 -1 RT -1 -1 -1 -1 329.TIF 1947 3 31 10 22 -1 -1 -1 -1 -1 -1 330.TIF 1948 3 1 24 -1 -1 -1 -1 -1 -1 -1 334.TIF 1949 3 14 10 12 -1 -1 -1 -1 -1 -1 344.TIF 1949 3 28 10 -1 RT -1 -1 -1 -1 -1 -1 347.TIF 1950 3 27 16 20 -1 -1 -1 -1 -1 -1 353.TIF 1951 3 5 18 -1 RT -1 -1 -1 -1 -1 -1 360.TIF 1953 2 24 5 9 SO -1 -1 CL -1 -1 SW -1 -1 375.TIF 1956 2 27 20 24 -1 -1 -1 -1 -1 -1 397.TIF 1964 2 24 1 8 FD -1 -1 FS -1 -1 CL -1 -1 465.TIF 1964 3 2 20 -1 FS -1 -1 CL -1 -1 -1 -1 466.TIF 1964 3 9 20 -1 FS -1 -1 CL -1 -1 -1 -1 467.TIF 1965 3 8 17 -1 -1 -1 -1 -1 -1 -1 475.TIF 1965 3 15 17 20 FS -1 -1 -1 -1 -1 -1 476.TIF 1965 3 29 17 21 FS -1 -1 -1 -1 -1 -1 478.TIF 1967 3 6 10 14 FS -1 -1 -1 -1 -1 -1 490.TIF 1968 3 4 22 -1 -1 -1 -1 -1 -1 -1 520.TIF 1968 3 11 19 -1 -1 -1 -1 -1 -1 -1 497.TIF 1968 3 18 19 -1 -1 -1 -1 -1 -1 -1 498.TIF 1968 3 25 16 -1 -1 -1 -1 -1 -1 -1 499.TIF (60% ICE COVER) 1968 4 1 12 -1 -1 -1 -1 -1 -1 -1 500.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.