GREAT LAKES ENVIRONMENTAL RESEARCH LABORATORY, NOAA Climate Data Modernization Project National Weather Service Historical Great Lakes Ice Reports for Winters 1899 - 1970 Site No. 081, Approximate Location: 46.47 N. Latitude, 84.60 W. Longitude Site Name Iroquois Point on Lake Superior ---------------------------------------------------------------------------------------------------------- Year Mo Da T1 T2 C1 T1C1 T2C1 C2 T1C2 T2C2 C3 T1C3 T2C3 IMAGE Supplemental Information ---------------------------------------------------------------------------------------------------------- 1899 4 23 -1 -1 SW -1 -1 -1 -1 -1 -1 002.TIF 1900 4 17 -1 -1 IP -1 -1 RT -1 -1 -1 -1 010.TIF 1901 4 16 -1 -1 SO -1 -1 -1 -1 -1 -1 017.TIF NORTHWARD 1901 4 16 -1 -1 OW -1 -1 -1 -1 -1 -1 017.TIF TO MUD LAKE 1902 3 18 -1 -1 IP -1 -1 -1 -1 -1 -1 021.TIF 1906 3 20 -1 -1 IP -1 -1 -1 -1 -1 -1 047.TIF TO DETOUR 1909 4 13 -1 -1 SO -1 -1 -1 -1 -1 -1 070.TIF 1911 3 21 -1 -1 SO -1 -1 -1 -1 -1 -1 079.TIF TO DETOUR 1913 3 25 15 -1 -1 -1 -1 -1 -1 -1 093.TIF TO ILE PARISIENNE 1913 3 25 -1 -1 IP -1 -1 -1 -1 -1 -1 093.TIF TO ROUND ISLAND 1913 4 8 -1 -1 NS -1 -1 -1 -1 -1 -1 095.TIF TO ROUND ISLAND 1914 4 21 -1 -1 OW -1 -1 -1 -1 -1 -1 105.TIF TO MUD LAKE 1915 4 13 -1 -1 OW -1 -1 -1 -1 -1 -1 111.TIF TO MUD LAKE 1917 4 7 -1 -1 OW -1 -1 -1 -1 -1 -1 125.TIF TO UPPER HAY LAKE 1917 4 17 -1 -1 IP -1 -1 IN -1 -1 -1 -1 126.TIF 1925 4 7 -1 -1 LI -1 -1 -1 -1 -1 -1 174.TIF TO MUD LAKE 1930 4 15 24 -1 SO -1 -1 -1 -1 -1 -1 208.TIF 1943 4 19 -1 -1 HF -1 -1 -1 -1 -1 -1 305.TIF 4Mi NW OF LIGHT 1944 3 6 14 -1 -1 -1 -1 -1 -1 -1 308.TIF LIGHT: TO LOCKS 1944 3 13 16 -1 IN -1 -1 -1 -1 -1 -1 309.TIF MAIN CHANNEL: TO THE LOCKS 1944 3 20 16 -1 NC -1 -1 -1 -1 -1 -1 310.TIF TO LOCKS 1945 3 19 -1 -1 OW -1 -1 -1 -1 -1 -1 315.TIF CHANNEL: TO LAKE NICOLET 1947 3 31 19 -1 -1 -1 -1 -1 -1 -1 330.TIF 1947 4 7 18 20 SO -1 -1 -1 -1 -1 -1 331.TIF CHANNEL 1948 3 1 22 -1 CL -1 -1 -1 -1 -1 -1 334.TIF 1948 3 22 6 -1 -1 -1 -1 -1 -1 -1 337.TIF IN CHANNELS 1948 4 5 -1 -1 IP -1 -1 -1 -1 -1 -1 339.TIF TO GROS CAP 1949 2 28 10 -1 SO -1 -1 WI -1 -1 -1 -1 526.TIF TO 2Mi TOWARD GROS CAP 1949 3 7 -1 -1 BK -1 -1 DI -1 -1 WI 3 -1 341.TIF 1949 3 21 -1 -1 WI 24 -1 -1 -1 -1 -1 345.TIF NORTHWARD 1950 3 6 18 20 -1 -1 -1 -1 -1 -1 350.TIF 1950 3 13 -1 -1 SO -1 -1 WI -1 -1 -1 -1 351.TIF 1950 3 27 20 -1 SC -1 -1 WI 72 96 -1 -1 353.TIF 1952 3 10 16 -1 -1 -1 -1 -1 -1 -1 369.TIF 1952 3 17 18 -1 -1 -1 -1 -1 -1 -1 370.TIF 1952 3 31 18 20 RT -1 -1 -1 -1 -1 -1 372.TIF 1953 3 9 -1 -1 IP -1 -1 BV -1 -1 WI -1 -1 377.TIF TO THE NW 1953 3 16 12 15 WT -1 -1 WI -1 -1 -1 -1 378.TIF 1953 3 23 -1 -1 LI -1 -1 -1 -1 -1 -1 379.TIF TO THE N & NW TO GROS CAP REEF 1953 3 23 12 -1 RT -1 -1 -1 -1 -1 -1 379.TIF TO BRUSH POINT 1955 3 14 7 -1 CL -1 -1 SC 3 -1 -1 -1 393.TIF 1955 3 28 14 -1 SC 10 14 -1 -1 -1 -1 395.TIF 1955 4 11 -1 -1 HF -1 -1 WI 12 240 -1 -1 396.TIF NORTH OF POINT 1956 2 27 -1 -1 IP -1 -1 -1 -1 -1 -1 397.TIF TO WAISKA BAY (99% ICE COVER) 1956 3 5 12 -1 SC -1 -1 -1 -1 -1 -1 399.TIF THROUGH WAISKA BAY 1956 3 19 -1 -1 FD -1 -1 -1 -1 -1 -1 402.TIF TO ROUND ISLAND 1956 3 26 -1 -1 RI -1 -1 -1 -1 -1 -1 403.TIF TO CEDAR POINT 1956 4 2 -1 -1 IP -1 -1 SC -1 -1 -1 -1 404.TIF 1956 4 2 18 20 -1 -1 -1 -1 -1 -1 404.TIF CHANNEL: TO GROS CAP 1956 4 16 -1 -1 IP -1 -1 -1 -1 -1 -1 406.TIF TO BRUSH & BIRCH POINT RANGES 1957 3 4 20 24 CL -1 -1 SC 12 14 -1 -1 409.TIF TO DISPATCH 1957 3 11 22 -1 -1 -1 -1 -1 -1 -1 411.TIF TO ROUND ISLAND 1957 3 25 22 -1 SW -1 -1 -1 -1 -1 -1 413.TIF TO LOCKS 1957 4 1 -1 -1 SO -1 -1 -1 -1 -1 -1 414.TIF TO MISSION POINT 1958 4 14 -1 -1 IP -1 -1 -1 -1 -1 -1 423.TIF TO POINT AUX PINS: SOUTH SHORE 1962 3 12 18 20 -1 -1 -1 -1 -1 -1 449.TIF 1962 4 9 10 -1 SI -1 -1 -1 -1 -1 -1 453.TIF SHOAL TO LOCKS: ALONG SHORE 1963 4 1 24 -1 -1 -1 -1 -1 -1 -1 461.TIF 1963 4 1 -1 -1 WI -1 -1 -1 -1 -1 -1 461.TIF W OF CHANNEL ---------------------------------------------------------------------------------------------------------- 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.