GREAT LAKES ENVIRONMENTAL RESEARCH LABORATORY, NOAA Climate Data Modernization Project National Weather Service Historical Great Lakes Ice Reports for Winters 1899 - 1970 Site No. 159, Approximate Location: 45.01 N. Latitude, 83.46 W. Longitude Site Name Alpena Island (to Mainland) on Lake Huron ---------------------------------------------------------------------------------------------------------- Year Mo Da T1 T2 C1 T1C1 T2C1 C2 T1C2 T2C2 C3 T1C3 T2C3 IMAGE Supplemental Information ---------------------------------------------------------------------------------------------------------- 1899 4 11 -1 -1 RT -1 -1 -1 -1 -1 -1 529.TIF 1900 3 20 -1 -1 SO -1 -1 -1 -1 -1 -1 006.TIF 1901 3 26 -1 -1 SO -1 -1 RT -1 -1 NS -1 -1 014.TIF 1902 3 18 -1 -1 OW -1 -1 -1 -1 -1 -1 021.TIF 1903 3 10 -1 -1 DI -1 -1 -1 -1 -1 -1 025.TIF 1904 3 1 24 -1 SO -1 -1 WI -1 -1 -1 -1 029.TIF 1904 3 8 16 24 -1 -1 -1 -1 -1 -1 030.TIF 1904 3 22 -1 -1 DI -1 -1 -1 -1 -1 -1 032.TIF 1904 3 29 -1 -1 DI -1 -1 -1 -1 -1 -1 033.TIF 1904 4 5 -1 -1 RT -1 -1 -1 -1 -1 -1 034.TIF 1904 4 12 -1 -1 DI -1 -1 -1 -1 -1 -1 035.TIF 1904 4 26 -1 -1 DI -1 -1 -1 -1 -1 -1 037.TIF 1904 5 3 -1 -1 OW -1 -1 -1 -1 -1 -1 038.TIF 1905 3 14 -1 -1 FD -1 -1 -1 -1 -1 -1 040.TIF 1905 3 21 -1 -1 IP -1 -1 NC -1 -1 -1 -1 041.TIF 1905 3 28 -1 -1 DI -1 -1 -1 -1 -1 -1 042.TIF 1905 4 4 -1 -1 OW -1 -1 -1 -1 -1 -1 043.TIF 1906 3 13 -1 -1 SI -1 -1 -1 -1 -1 -1 046.TIF 1906 3 20 -1 -1 SO -1 -1 -1 -1 -1 -1 047.TIF 1906 3 27 -1 -1 IP -1 -1 -1 -1 -1 -1 048.TIF 1907 3 12 -1 -1 OW -1 -1 -1 -1 -1 -1 052.TIF OFF THE ISLANDS 1907 4 9 -1 -1 OW -1 -1 -1 -1 -1 -1 056.TIF 1908 4 14 -1 -1 OW -1 -1 -1 -1 -1 -1 062.TIF 1913 4 16 -1 -1 OW -1 -1 -1 -1 -1 -1 096.TIF 1920 3 9 20 30 SO -1 -1 -1 -1 -1 -1 140.TIF 1934 3 6 14 18 -1 -1 -1 -1 -1 -1 228.TIF 1935 3 5 24 36 SO -1 -1 -1 -1 -1 -1 237.TIF 1935 3 19 -1 -1 SO -1 -1 -1 -1 -1 -1 239.TIF 1936 3 23 -1 -1 SO -1 -1 -1 -1 -1 -1 246.TIF 1941 3 24 -1 -1 DI -1 -1 -1 -1 -1 -1 288.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.