GREAT LAKES ENVIRONMENTAL RESEARCH LABORATORY, NOAA Climate Data Modernization Project National Weather Service Historical Great Lakes Ice Reports for Winters 1899 - 1970 Site No. 010, Approximate Location: 48.33 N. Latitude, 89.24 W. Longitude Site Name Fort William Harbor on Lake Superior ---------------------------------------------------------------------------------------------------------- Year Mo Da T1 T2 C1 T1C1 T2C1 C2 T1C2 T2C2 C3 T1C3 T2C3 IMAGE Supplemental Information ---------------------------------------------------------------------------------------------------------- 1944 3 20 22 -1 -1 -1 -1 -1 -1 -1 310.TIF 1944 4 10 -1 -1 BK -1 -1 SW -1 -1 -1 -1 313.TIF CHANNELS TO DOCKS (CUT) 1946 3 11 34 -1 SO -1 -1 -1 -1 -1 -1 319.TIF 1946 3 18 32 34 -1 -1 -1 -1 -1 -1 320.TIF 1947 3 3 28 31 -1 -1 -1 -1 -1 -1 326.TIF 1947 3 24 26 30 -1 -1 -1 -1 -1 -1 329.TIF 1948 3 1 30 -1 -1 -1 -1 -1 -1 -1 334.TIF 1948 3 15 18 -1 -1 -1 -1 -1 -1 -1 336.TIF 1948 3 22 24 30 -1 -1 -1 -1 -1 -1 337.TIF 1948 3 29 18 -1 SI -1 -1 -1 -1 -1 -1 338.TIF INSIDE HARBOR 1948 3 29 36 -1 SI -1 -1 -1 -1 -1 -1 338.TIF OUTSIDE HARBOR 1949 3 21 30 -1 -1 -1 -1 -1 -1 -1 345.TIF 1950 3 13 18 -1 -1 -1 -1 -1 -1 -1 351.TIF 1950 3 20 30 -1 -1 -1 -1 -1 -1 -1 352.TIF 1950 3 27 30 -1 -1 -1 -1 -1 -1 -1 353.TIF 1951 3 12 18 20 SC -1 -1 -1 -1 -1 -1 361.TIF 1951 4 2 30 -1 -1 -1 -1 -1 -1 -1 364.TIF 1951 4 9 18 22 SW -1 -1 -1 -1 -1 -1 365.TIF 1952 3 10 20 24 -1 -1 -1 -1 -1 -1 369.TIF 1952 3 17 20 24 SC -1 -1 -1 -1 -1 -1 370.TIF 1952 3 24 18 24 -1 -1 -1 -1 -1 -1 371.TIF 1952 3 31 26 30 BK -1 -1 -1 -1 -1 -1 372.TIF (CUT) 1953 3 9 22 24 SO -1 -1 -1 -1 -1 -1 376.TIF TO 1 & 1/4Mi OUT 1953 3 16 14 -1 -1 -1 -1 -1 -1 -1 378.TIF 1953 3 23 22 27 BK -1 -1 -1 -1 -1 -1 379.TIF TO WELCOME ISLANDS (CUT) 1954 3 1 24 26 -1 -1 -1 -1 -1 -1 381.TIF TO 7Mi OUT 1954 3 8 24 26 SO -1 -1 CL -1 -1 -1 -1 382.TIF TO BEYOND WELCOME ISLAND 1954 3 15 22 -1 -1 -1 -1 -1 -1 -1 383.TIF TO WELCOME ISLANDS 1954 3 22 22 26 SC 5 -1 -1 -1 -1 -1 384.TIF TO 4 TO 6Mi OUT 1954 4 5 22 26 BK -1 -1 -1 -1 -1 -1 386.TIF (CUT) 1954 4 12 24 26 -1 -1 -1 -1 -1 -1 387.TIF 1955 2 28 18 22 SO -1 -1 -1 -1 -1 -1 389.TIF 1955 3 28 18 26 CL -1 -1 SC -1 -1 -1 -1 395.TIF TO 13Mi OUT 1956 3 19 20 24 SO -1 -1 SW -1 -1 -1 -1 402.TIF TO WELCOME ISLANDS 1956 3 26 20 24 SO -1 -1 SW -1 -1 -1 -1 403.TIF TO 2 & 1/2Mi OUT 1956 3 26 28 30 SO -1 -1 -1 -1 -1 -1 403.TIF IN SLIPS 1956 4 2 24 28 SO -1 -1 CL -1 -1 -1 -1 404.TIF 1956 4 16 -1 -1 BK -1 -1 RT -1 -1 -1 -1 406.TIF INSIDE BW (75% ICE COVER) 1957 3 4 18 24 SC 8 -1 -1 -1 -1 -1 409.TIF 1957 3 25 18 24 SO -1 -1 -1 -1 -1 -1 413.TIF TO ISLE ROYALE 1957 3 25 30 -1 SO -1 -1 -1 -1 -1 -1 413.TIF IN SLIPS 1957 4 1 -1 -1 BK -1 -1 -1 -1 -1 -1 414.TIF (CUT) 1958 4 14 10 12 BK -1 -1 -1 -1 -1 -1 423.TIF 1959 3 30 -1 -1 RT -1 -1 WT -1 -1 -1 -1 429.TIF 1960 3 7 18 -1 -1 -1 -1 -1 -1 -1 434.TIF 1960 3 7 24 30 -1 -1 -1 -1 -1 -1 434.TIF ENTRANCE CHANNELS 1961 4 10 -1 -1 BK -1 -1 -1 -1 -1 -1 446.TIF (CUT) ---------------------------------------------------------------------------------------------------------- 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.