GREAT LAKES ENVIRONMENTAL RESEARCH LABORATORY, NOAA Climate Data Modernization Project National Weather Service Historical Great Lakes Ice Reports for Winters 1899 - 1970 Site No. 130, Approximate Location: 45.77 N. Latitude, 84.44 W. Longitude Site Name Bois Blanc Island on Lake Huron ---------------------------------------------------------------------------------------------------------- Year Mo Da T1 T2 C1 T1C1 T2C1 C2 T1C2 T2C2 C3 T1C3 T2C3 IMAGE Supplemental Information ---------------------------------------------------------------------------------------------------------- 1908 3 3 -1 -1 DI -1 -1 LI -1 -1 -1 -1 057.TIF SOUTH OF ISLAND 1910 3 1 -1 -1 OW -1 -1 -1 -1 -1 -1 071.TIF EAST OF ISLAND 1910 3 8 -1 -1 OW -1 -1 -1 -1 -1 -1 072.TIF EAST OF ISLAND 1911 3 7 -1 -1 OW -1 -1 -1 -1 -1 -1 077.TIF SOUTH FROM FOOT OF ISLAND 1911 3 14 -1 -1 OW -1 -1 -1 -1 -1 -1 078.TIF SOUTH OF ISLAND 1912 3 5 -1 -1 OW -1 -1 -1 -1 -1 -1 082.TIF SOUTH END OF ISLAND 1912 3 19 36 -1 -1 -1 -1 -1 -1 -1 084.TIF SOUTH PASSAGE 1912 4 2 -1 -1 OW -1 -1 -1 -1 -1 -1 086.TIF AT LIGHTHOUSE 1912 4 2 -1 -1 SO -1 -1 -1 -1 -1 -1 086.TIF TO SOUTH AND WEST 1913 3 4 -1 -1 OW -1 -1 -1 -1 -1 -1 090.TIF 1913 3 25 -1 -1 DI -1 -1 -1 -1 -1 -1 093.TIF SOUTH OF ISLAND 1914 3 3 -1 -1 OW -1 -1 -1 -1 -1 -1 098.TIF 1915 3 16 -1 -1 OW -1 -1 -1 -1 -1 -1 107.TIF LOWER END OF ISLAND 1918 4 9 -1 -1 OW -1 -1 -1 -1 -1 -1 133.TIF 1922 3 7 -1 -1 OW -1 -1 -1 -1 -1 -1 149.TIF SOUTH TO PORT HURON 1923 4 17 -1 -1 OW -1 -1 -1 -1 -1 -1 161.TIF BEYOND THE LIGHT 1924 3 18 -1 -1 OW -1 -1 -1 -1 -1 -1 165.TIF EAST OF ISLAND 1925 3 24 -1 -1 OW -1 -1 -1 -1 -1 -1 172.TIF EAST END OF ISLAND 1927 3 8 -1 -1 SW -1 -1 -1 -1 -1 -1 185.TIF EAST END OF ISLAND 1929 3 5 -1 -1 OW -1 -1 -1 -1 -1 -1 196.TIF EAST END OF ISLAND 1929 3 26 -1 -1 OW -1 -1 -1 -1 -1 -1 199.TIF EAST OF ISLAND 1930 3 25 -1 -1 SW -1 -1 -1 -1 -1 -1 205.TIF ALONG SOUTH SHORE 1931 3 24 -1 -1 IP -1 -1 RT -1 -1 -1 -1 212.TIF TO ST. MARTINS ISLAND 1941 3 17 16 -1 -1 -1 -1 -1 -1 -1 287.TIF 1942 3 16 -1 -1 SO -1 -1 SC -1 -1 -1 -1 293.TIF SOUTHWARD 1948 3 1 -1 -1 IP -1 -1 -1 -1 -1 -1 334.TIF 1948 3 1 -1 -1 SW -1 -1 -1 -1 -1 -1 334.TIF EASTWARD 1949 3 7 -1 -1 OW -1 -1 -1 -1 -1 -1 341.TIF EASTWARD 1950 3 6 -1 -1 SW -1 -1 -1 -1 -1 -1 350.TIF EASTWARD 1950 3 20 -1 -1 SW -1 -1 -1 -1 -1 -1 352.TIF TO FOURTEEN FOOT SHOALS 1953 2 24 -1 -1 SW -1 -1 -1 -1 -1 -1 375.TIF 1954 4 12 -1 -1 LF -1 -1 DI -1 -1 -1 -1 387.TIF 1957 3 11 -1 -1 FD -1 -1 SW -1 -1 -1 -1 411.TIF TO MACKINAW (70% ICE COVER) 1958 3 3 -1 -1 IP -1 -1 -1 -1 -1 -1 417.TIF ALONG SHORE TO THE EAST 1959 3 30 -1 -1 IP -1 -1 -1 -1 -1 -1 429.TIF 1961 3 13 -1 -1 RT -1 -1 PN -1 -1 -1 -1 442.TIF EAST TO LAKE MICHIGAN 1961 3 13 -1 -1 RT -1 -1 PN -1 -1 -1 -1 442.TIF N SHORE: TO MACKINAC ISLAND 1961 4 3 24 30 IJ -1 -1 WI -1 -1 -1 -1 445.TIF BETWEEN E & W ENDS OF ISLAND 1963 4 8 -1 -1 OW -1 -1 -1 -1 -1 -1 462.TIF N OF ISLAND 1967 3 27 -1 -1 OW -1 -1 -1 -1 -1 -1 493.TIF E THROUGH NORTHERN 1/2 OF LAKE 1967 4 10 -1 -1 LI -1 -1 -1 -1 -1 -1 495.TIF EASTWARD 1968 3 4 -1 -1 DI -1 -1 WI -1 72 -1 -1 520.TIF TO 15Mi EAST (100% ICE COVER) 1968 3 11 -1 -1 IR -1 -1 -1 -1 -1 -1 497.TIF 1968 3 18 -1 -1 IR -1 -1 -1 -1 -1 -1 498.TIF 1968 3 18 -1 -1 WI -1 72 -1 -1 -1 -1 498.TIF E OF ISLAND 1968 3 25 -1 -1 IR -1 -1 -1 -1 -1 -1 499.TIF 1969 2 24 -1 -1 SO -1 -1 -1 -1 -1 -1 503.TIF LIGHT: EASTWARD 1970 2 24 -1 -1 IR -1 -1 -1 -1 -1 -1 519.TIF TO MACKINAC ISLAND 1970 3 24 15 16 SO -1 -1 -1 -1 -1 -1 513.TIF TO LANSING SHOAL ---------------------------------------------------------------------------------------------------------- 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.