GREAT LAKES ENVIRONMENTAL RESEARCH LABORATORY, NOAA Climate Data Modernization Project National Weather Service Historical Great Lakes Ice Reports for Winters 1899 - 1970 Site No. 053, Approximate Location: 46.75 N. Latitude, 92.09 W. Longitude Site Name Superior on Lake Superior ---------------------------------------------------------------------------------------------------------- Year Mo Da T1 T2 C1 T1C1 T2C1 C2 T1C2 T2C2 C3 T1C3 T2C3 IMAGE Supplemental Information ---------------------------------------------------------------------------------------------------------- 1908 3 24 -1 -1 FD -1 -1 -1 -1 -1 -1 060.TIF LAKE 1908 4 14 -1 -1 OW -1 -1 -1 -1 -1 -1 062.TIF SUPERIOR: TO OMAHA ELEVATORS 1908 4 14 -1 -1 OW -1 -1 -1 -1 -1 -1 062.TIF LAKE 1909 4 13 -1 -1 OW -1 -1 -1 -1 -1 -1 070.TIF ENTRY 1909 4 13 -1 -1 FD -1 -1 BK -1 -1 -1 -1 070.TIF SOUTH SHORE: TO 1Mi OUT 1935 3 12 -1 -1 FD -1 -1 BV -1 -1 WI -1 -1 238.TIF 1937 3 22 -1 -1 IP -1 -1 -1 -1 -1 -1 256.TIF TO 12Mi OUT FROM ENTRY 1937 4 19 -1 -1 IJ -1 -1 FD -1 -1 -1 -1 260.TIF ENTRANCE: TO 8Mi OUT 1938 4 4 -1 -1 OW -1 -1 -1 -1 -1 -1 265.TIF 1938 4 11 -1 -1 DI -1 -1 IJ -1 -1 -1 -1 266.TIF ENTRY 1939 3 13 -1 -1 IP -1 -1 -1 -1 -1 -1 269.TIF TO 5Mi OUT 1940 4 15 -1 -1 WI -1 -1 -1 -1 -1 -1 283.TIF 1941 3 3 16 -1 IP -1 -1 BV -1 -1 -1 -1 285.TIF LAKE: CLOSE TO ENTRY 1941 3 17 9 -1 -1 -1 -1 -1 -1 -1 287.TIF SUPERIOR ENTRY 1941 3 17 -1 -1 IP -1 -1 BV -1 -1 -1 -1 287.TIF LAKE 1941 3 24 -1 -1 IP -1 -1 BV -1 -1 -1 -1 288.TIF 1941 3 31 -1 -1 IP -1 -1 BV -1 -1 -1 -1 289.TIF 1942 3 9 -1 -1 LI -1 -1 -1 -1 -1 -1 292.TIF 1942 3 23 -1 -1 DI -1 -1 -1 -1 -1 -1 294.TIF LAKE 1942 4 6 -1 -1 OW -1 -1 -1 -1 -1 -1 296.TIF 1942 4 6 -1 -1 FD -1 -1 -1 -1 -1 -1 296.TIF 10Mi OUT 1943 4 19 -1 -1 DI -1 -1 -1 -1 -1 -1 305.TIF 1946 3 4 28 30 -1 -1 -1 -1 -1 -1 318.TIF 1946 3 4 -1 -1 IP -1 -1 BV -1 -1 -1 -1 318.TIF LAKE 1946 3 11 -1 -1 SW -1 -1 -1 -1 -1 -1 319.TIF 1946 3 18 -1 -1 IP -1 -1 BV -1 -1 -1 -1 320.TIF 1946 3 25 -1 -1 OW -1 -1 -1 -1 -1 -1 321.TIF SHIP CHANNEL 1946 3 25 -1 -1 IP -1 -1 BV -1 -1 -1 -1 321.TIF LAKE 1946 4 1 -1 -1 DI -1 -1 -1 -1 -1 -1 322.TIF LAKE 1947 3 17 -1 -1 HF -1 -1 WI -1 -1 -1 -1 328.TIF ENTRY 1948 3 29 -1 -1 RT -1 -1 -1 -1 -1 -1 338.TIF ENTRY 1948 3 29 -1 -1 DI -1 -1 BV -1 -1 -1 -1 338.TIF LAKE 1948 4 5 -1 -1 WI 180 240 -1 -1 -1 -1 339.TIF ENTRY: TO 1/2Mi OUTSIDE 1948 4 12 -1 -1 PI -1 -1 DI -1 -1 -1 -1 340.TIF ENTRY: TO 2Mi OUT 1949 3 28 -1 -1 WI 180 -1 -1 -1 -1 -1 347.TIF ENTRY: TO 5Mi OUT 1950 3 6 -1 -1 LF -1 -1 -1 -1 -1 -1 350.TIF ENTRY 1950 3 13 -1 -1 LF -1 -1 -1 -1 -1 -1 351.TIF ENTRY 1950 3 20 -1 -1 OW -1 -1 -1 -1 -1 -1 352.TIF ENTRY 1950 3 20 -1 -1 IP -1 -1 WI -1 -1 BV -1 -1 352.TIF LAKE 1950 3 27 -1 -1 OW -1 -1 -1 -1 -1 -1 353.TIF ENTRY 1950 4 3 -1 -1 OW -1 -1 -1 -1 -1 -1 354.TIF ENTRY 1950 4 10 -1 -1 OW -1 -1 -1 -1 -1 -1 355.TIF ENTRY 1950 4 17 -1 -1 OW -1 -1 -1 -1 -1 -1 356.TIF ENTRY 1950 4 17 18 -1 WI -1 -1 BV -1 -1 -1 -1 356.TIF TO 3/4Mi OUT 1950 4 24 -1 -1 OW -1 -1 -1 -1 -1 -1 357.TIF ENTRY 1950 5 1 -1 -1 OW -1 -1 -1 -1 -1 -1 358.TIF ENTRY 1951 3 19 -1 -1 OW -1 -1 -1 -1 -1 -1 362.TIF ENTRY 1951 4 2 -1 -1 SW -1 -1 -1 -1 -1 -1 364.TIF ENTRY 1951 4 2 -1 -1 IP -1 -1 BV -1 -1 -1 -1 364.TIF LAKE 1951 4 9 17 19 SO -1 -1 -1 -1 -1 -1 365.TIF LAKE 1951 4 16 -1 -1 IP -1 -1 -1 -1 -1 -1 366.TIF FRONT CHANNEL 1951 4 16 -1 -1 BK -1 -1 -1 -1 -1 -1 366.TIF ENTRY 1951 4 16 -1 -1 OW -1 -1 -1 -1 -1 -1 366.TIF NORTH SHORE: 1/2 TO 2Mi OUT 1951 4 16 -1 -1 FD -1 -1 SO -1 -1 RT -1 -1 366.TIF N SHORE: BEYOND 1/2 TO 2Mi OUT 1952 2 25 -1 -1 OW -1 -1 -1 -1 -1 -1 367.TIF LAKE 1952 3 24 2 3 IP -1 -1 BV -1 -1 -1 -1 371.TIF LAKE 1952 4 7 -1 -1 PN -1 -1 -1 -1 -1 -1 373.TIF ENTRY: TO 4Mi OUT 1952 4 7 -1 -1 OW -1 -1 BV -1 -1 -1 -1 373.TIF LAKE: BEYOND 4Mi OUT 1952 4 14 -1 -1 FD -1 -1 PN -1 -1 -1 -1 374.TIF OUTSIDE OF ENTRY 1953 3 2 24 -1 SC 6 -1 WI -1 -1 -1 -1 528.TIF CHANNELS & LAKE: TO 10Mi OUT 1953 3 9 24 26 SC -1 -1 WI -1 -1 -1 -1 376.TIF LAKE: TO 10Mi OUT 1953 3 16 -1 -1 IP -1 -1 WI -1 -1 -1 -1 378.TIF TO 10Mi OUT FROM ENTRANCE 1954 3 1 -1 -1 OW -1 -1 -1 -1 -1 -1 381.TIF LAKE 1954 3 1 -1 -1 OW -1 -1 -1 -1 -1 -1 381.TIF ENTRY 1954 3 8 -1 -1 OW -1 -1 BV -1 -1 -1 -1 382.TIF LAKE 1954 3 15 -1 -1 FD -1 -1 -1 -1 -1 -1 383.TIF TO 1Mi OUT 1954 3 15 -1 -1 DI -1 -1 BK -1 -1 -1 -1 383.TIF ENTRY 1954 3 22 8 15 BK -1 -1 SC -1 -1 SL -1 -1 384.TIF LAKE 1954 3 22 8 15 BK -1 -1 SC -1 -1 SL -1 -1 384.TIF ENTRY 1954 3 29 -1 -1 DI -1 -1 BK -1 -1 -1 -1 385.TIF LAKE 1954 3 29 -1 -1 OW -1 -1 -1 -1 -1 -1 385.TIF ENTRY 1954 4 5 -1 -1 OW -1 -1 BV -1 -1 -1 -1 386.TIF LAKE 1954 4 5 -1 -1 BK -1 -1 -1 -1 -1 -1 386.TIF CHANNEL 1954 4 12 -1 -1 OW -1 -1 -1 -1 -1 -1 387.TIF ENTRY & CHANNEL 1954 4 12 -1 -1 OW -1 -1 -1 -1 -1 -1 387.TIF LAKE 1955 2 28 17 19 IP -1 -1 BV -1 -1 -1 -1 389.TIF LAKE 1955 3 7 19 23 SC 6 8 BV -1 -1 -1 -1 391.TIF LAKE 1955 3 14 19 23 IP -1 -1 BV -1 -1 -1 -1 393.TIF LAKE 1955 3 21 22 26 -1 -1 -1 -1 -1 -1 394.TIF LAKE 1955 3 21 -1 -1 OW -1 -1 -1 -1 -1 -1 394.TIF SHIP CANAL 1955 3 28 16 22 IP -1 -1 BV -1 -1 -1 -1 395.TIF LAKE 1955 4 11 -1 -1 HF -1 -1 WI -1 -1 SW -1 -1 396.TIF LAKE 1956 2 27 -1 -1 DI -1 -1 -1 -1 -1 -1 397.TIF LAKE 1956 3 5 -1 -1 SW -1 -1 -1 -1 -1 -1 399.TIF ENTRY 1956 3 5 -1 -1 OW -1 -1 BV -1 -1 -1 -1 399.TIF LAKE 1956 3 12 -1 -1 OW -1 -1 BV -1 -1 -1 -1 401.TIF LAKE 1956 3 19 -1 -1 IP -1 -1 SC -1 -1 BV -1 -1 402.TIF LAKE 1956 3 19 3 -1 NI -1 -1 -1 -1 -1 -1 402.TIF ENTRY 1956 3 26 -1 -1 SW -1 -1 -1 -1 -1 -1 403.TIF ENTRY 1956 3 26 -1 -1 OW -1 -1 -1 -1 -1 -1 403.TIF LAKE 1956 4 2 6 20 -1 -1 -1 -1 -1 -1 404.TIF FRONT CHANNEL 1956 4 2 -1 -1 DI -1 -1 SW -1 -1 -1 -1 404.TIF LAKE 1956 4 9 -1 -1 OW -1 -1 -1 -1 -1 -1 405.TIF LAKE 1956 4 16 -1 -1 OW -1 -1 -1 -1 -1 -1 406.TIF LAKE 1957 2 25 17 23 CL -1 -1 -1 -1 -1 -1 407.TIF TO 3Mi OUT 1957 2 25 23 -1 -1 -1 -1 -1 -1 -1 407.TIF BASIN 1957 2 25 17 -1 SC 7 -1 -1 -1 -1 -1 407.TIF CHANNEL 1957 4 15 -1 -1 OW -1 -1 -1 -1 -1 -1 415.TIF LAKE 1958 2 24 -1 -1 SO -1 -1 BV -1 -1 -1 -1 416.TIF LAKE 1958 3 3 -1 -1 SO -1 -1 PI -1 -1 BV -1 -1 417.TIF LAKE 1958 3 31 -1 -1 SO -1 -1 -1 -1 -1 -1 421.TIF LAKE 1958 4 7 -1 -1 OW -1 -1 -1 -1 -1 -1 422.TIF ENTRY 1958 4 7 -1 -1 OW -1 -1 -1 -1 -1 -1 422.TIF ENTRANCE: INTO LAKE 1958 4 14 -1 -1 FD -1 -1 WI -1 -1 SW -1 -1 423.TIF LAKE: 10Mi OUT 1959 3 9 -1 -1 SW -1 -1 -1 -1 -1 -1 425.TIF ENTRY 1959 3 16 31 -1 -1 -1 -1 -1 -1 -1 426.TIF LAKE 1959 3 16 -1 -1 SW -1 -1 -1 -1 -1 -1 426.TIF ENTRY 1959 3 23 -1 -1 LI -1 -1 -1 -1 -1 -1 427.TIF ENTRY 1959 3 30 -1 -1 OW -1 -1 -1 -1 -1 -1 429.TIF ENTRY 1959 4 13 -1 -1 BK -1 -1 -1 -1 -1 -1 431.TIF FRONT CHANNEL 1960 4 4 -1 -1 OW -1 -1 -1 -1 -1 -1 438.TIF ENTRY: INNER TO OUTER PIERS 1961 2 27 -1 -1 DI -1 -1 -1 -1 -1 -1 440.TIF LAKE: GREAT NORTHERN DOCKS 1961 3 6 -1 -1 DI -1 -1 -1 -1 -1 -1 441.TIF LAKE 1961 3 6 -1 -1 OW -1 -1 -1 -1 -1 -1 441.TIF BAY END OF ENTRY 1961 3 13 -1 -1 OW -1 -1 -1 -1 -1 -1 442.TIF MOST OF ENTRY 1961 3 20 17 -1 FD -1 -1 FS -1 -1 BV -1 -1 443.TIF LAKE 1961 4 3 -1 -1 OW -1 -1 -1 -1 -1 -1 445.TIF LAKE 1961 4 10 -1 -1 FD -1 -1 DI -1 -1 SI -1 -1 446.TIF LAKE 1962 3 5 14 -1 -1 -1 -1 -1 -1 -1 448.TIF ENTRY 1962 3 5 -1 -1 IP -1 -1 BV -1 -1 -1 -1 448.TIF LAKE 1962 3 19 23 26 -1 -1 -1 -1 -1 -1 450.TIF AT DOCKS 1962 3 26 -1 -1 IP -1 -1 BV -1 -1 -1 -1 451.TIF LAKE 1962 4 2 -1 -1 IP -1 -1 BV -1 -1 -1 -1 452.TIF LAKE 1962 4 9 -1 -1 FD -1 -1 BV -1 -1 SW -1 -1 453.TIF LAKE (50% ICE COVER) 1963 3 4 24 34 -1 -1 -1 -1 -1 -1 457.TIF NEAR SLIPS 1963 3 11 -1 -1 FS -1 -1 -1 -1 -1 -1 458.TIF LAKE 1963 3 18 24 -1 SO -1 -1 -1 -1 -1 -1 459.TIF LAKE 1963 3 25 30 -1 SO -1 -1 -1 -1 -1 -1 460.TIF LAKE 1963 4 1 28 -1 -1 -1 -1 -1 -1 -1 461.TIF LAKE 1963 4 8 -1 -1 OW -1 -1 -1 -1 -1 -1 462.TIF ENTRY 1968 2 26 37 -1 -1 -1 -1 -1 -1 -1 521.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.