GREAT LAKES ENVIRONMENTAL RESEARCH LABORATORY, NOAA Climate Data Modernization Project National Weather Service Historical Great Lakes Ice Reports for Winters 1899 - 1970 Site No. 135, Approximate Location: 45.70 N. Latitude, 80.62 W. Longitude Site Name Britt Harbor on Lake Huron ---------------------------------------------------------------------------------------------------------- Year Mo Da T1 T2 C1 T1C1 T2C1 C2 T1C2 T2C2 C3 T1C3 T2C3 IMAGE Supplemental Information ---------------------------------------------------------------------------------------------------------- 1934 4 17 12 18 -1 -1 -1 -1 -1 -1 234.TIF 1935 4 9 -1 -1 IP -1 -1 -1 -1 -1 -1 242.TIF 1935 4 16 -1 -1 OW -1 -1 -1 -1 -1 -1 243.TIF 1936 3 23 35 -1 -1 -1 -1 -1 -1 -1 246.TIF 1938 3 7 38 -1 -1 -1 -1 -1 -1 -1 261.TIF 1938 3 21 18 22 -1 -1 -1 -1 -1 -1 263.TIF 1938 3 28 18 -1 -1 -1 -1 -1 -1 -1 264.TIF 1938 4 4 -1 -1 RT -1 -1 -1 -1 -1 -1 265.TIF 1938 4 4 -1 -1 OW -1 -1 -1 -1 -1 -1 265.TIF BEYOND 3Mi OUT 1939 4 3 16 -1 -1 -1 -1 -1 -1 -1 272.TIF 1939 4 17 6 15 BK -1 -1 -1 -1 -1 -1 274.TIF 1942 3 30 -1 -1 SO -1 -1 -1 -1 -1 -1 295.TIF 1942 4 13 -1 -1 OW -1 -1 -1 -1 -1 -1 297.TIF EXCEPT NEAR GEREAUX LIGHTHOUSE 1943 4 19 -1 -1 BK -1 -1 -1 -1 -1 -1 305.TIF 1944 3 27 20 -1 -1 -1 -1 -1 -1 -1 311.TIF 1944 4 3 20 -1 -1 -1 -1 -1 -1 -1 312.TIF 1945 3 26 -1 -1 OW -1 -1 -1 -1 -1 -1 316.TIF 1946 3 18 24 -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 1947 3 3 30 -1 -1 -1 -1 -1 -1 -1 326.TIF 1947 3 31 30 -1 SO -1 -1 -1 -1 -1 -1 330.TIF 1947 4 7 30 -1 SO -1 -1 -1 -1 -1 -1 331.TIF 1949 2 28 19 -1 -1 -1 -1 -1 -1 -1 527.TIF 1950 2 27 18 -1 SO -1 -1 BV -1 -1 -1 -1 349.TIF 1950 3 6 18 -1 -1 -1 -1 -1 -1 -1 350.TIF 1950 4 3 -1 -1 DC -1 -1 -1 -1 -1 -1 354.TIF 1950 4 24 -1 -1 OW -1 -1 -1 -1 -1 -1 357.TIF 1951 4 2 -1 -1 BK -1 -1 -1 -1 -1 -1 364.TIF 1952 3 3 22 -1 IP -1 -1 BV -1 -1 -1 -1 368.TIF 1952 3 17 -1 -1 SO -1 -1 BV -1 -1 -1 -1 370.TIF 1952 3 31 -1 -1 BK -1 -1 -1 -1 -1 -1 372.TIF 1953 3 9 14 -1 -1 -1 -1 -1 -1 -1 376.TIF 1953 3 16 14 -1 SO -1 -1 WI -1 -1 BV -1 -1 378.TIF TO OLD GEREAUX 1953 3 23 -1 -1 RT -1 -1 -1 -1 -1 -1 379.TIF RIVER 1953 3 30 -1 -1 OW -1 -1 -1 -1 -1 -1 380.TIF 1954 3 8 15 -1 -1 -1 -1 -1 -1 -1 382.TIF 1954 3 15 14 -1 WI -1 -1 BV -1 -1 -1 -1 383.TIF FROM GEREAUX ISLAND LIGHTHOUSE 1954 3 22 14 -1 SO -1 -1 WI -1 -1 BV -1 -1 384.TIF AT LIGHTHOUSE 1954 3 29 -1 -1 BK -1 -1 -1 -1 -1 -1 385.TIF 1955 3 7 14 -1 -1 -1 -1 -1 -1 -1 391.TIF 1955 3 14 8 -1 -1 -1 -1 -1 -1 -1 393.TIF INNER HARBOR 1955 3 21 8 -1 -1 -1 -1 -1 -1 -1 394.TIF INNER HARBOR 1955 3 28 -1 -1 SO -1 -1 -1 -1 -1 -1 395.TIF FROM RIVER MOUTH AND BEYOND 1956 3 5 22 -1 IP -1 -1 BV -1 -1 -1 -1 399.TIF 1956 3 19 -1 -1 SO -1 -1 -1 -1 -1 -1 402.TIF 1956 3 26 -1 -1 SO -1 -1 -1 -1 -1 -1 403.TIF 1956 4 2 -1 -1 SO -1 -1 -1 -1 -1 -1 404.TIF 1956 4 16 -1 -1 OW -1 -1 -1 -1 -1 -1 406.TIF 1957 2 25 18 -1 SO -1 -1 BV -1 -1 -1 -1 407.TIF 1957 3 25 -1 -1 BK -1 -1 -1 -1 -1 -1 413.TIF 1959 3 16 22 -1 -1 -1 -1 -1 -1 -1 426.TIF 1959 3 23 22 -1 -1 -1 -1 -1 -1 -1 427.TIF 1959 3 30 22 -1 SO -1 -1 BV -1 -1 -1 -1 429.TIF 1959 4 6 -1 -1 SO -1 -1 RT -1 -1 -1 -1 430.TIF 1959 4 20 -1 -1 LI -1 -1 -1 -1 -1 -1 432.TIF 1960 2 29 22 -1 -1 -1 -1 -1 -1 -1 522.TIF 1960 3 7 22 -1 -1 -1 -1 -1 -1 -1 434.TIF 1960 3 28 24 -1 -1 -1 -1 -1 -1 -1 437.TIF 1960 4 4 24 -1 RT -1 -1 -1 -1 -1 -1 438.TIF 1960 4 11 16 -1 RT -1 -1 -1 -1 -1 -1 439.TIF 1961 2 27 30 -1 SO -1 -1 BV -1 -1 -1 -1 440.TIF 1961 3 6 8 -1 SO -1 -1 BV -1 -1 -1 -1 441.TIF CHANNEL 1961 3 13 12 -1 -1 -1 -1 -1 -1 -1 442.TIF 1961 3 20 12 -1 SC 4 -1 -1 -1 -1 -1 443.TIF 1961 3 27 12 -1 -1 -1 -1 -1 -1 -1 444.TIF 1961 4 3 11 -1 -1 -1 -1 -1 -1 -1 445.TIF 1961 4 10 11 -1 -1 -1 -1 -1 -1 -1 446.TIF 1962 2 26 14 -1 SO -1 -1 BV -1 -1 -1 -1 447.TIF 1962 3 5 14 -1 -1 -1 -1 -1 -1 -1 448.TIF 1962 3 26 14 -1 -1 -1 -1 -1 -1 -1 451.TIF 1962 4 2 12 -1 RT -1 -1 -1 -1 -1 -1 452.TIF 1962 4 16 -1 -1 OW -1 -1 -1 -1 -1 -1 454.TIF 1963 2 25 19 -1 -1 -1 -1 -1 -1 -1 456.TIF 1963 3 4 19 -1 -1 -1 -1 -1 -1 -1 457.TIF 1963 3 11 19 -1 -1 -1 -1 -1 -1 -1 458.TIF 1963 3 18 19 -1 -1 -1 -1 -1 -1 -1 459.TIF 1963 3 25 19 -1 -1 -1 -1 -1 -1 -1 460.TIF 1963 4 1 19 -1 -1 -1 -1 -1 -1 -1 461.TIF 1963 4 8 -1 -1 OW -1 -1 -1 -1 -1 -1 462.TIF 1964 2 24 22 -1 -1 -1 -1 -1 -1 -1 465.TIF 1964 3 2 17 -1 -1 -1 -1 -1 -1 -1 466.TIF 1964 3 16 -1 -1 SO -1 -1 -1 -1 -1 -1 468.TIF TO 1 & 1/2Mi OUT 1964 3 23 -1 -1 RT -1 -1 -1 -1 -1 -1 469.TIF 1965 2 23 14 20 -1 -1 -1 -1 -1 -1 473.TIF 1965 3 15 -1 -1 SO -1 -1 BV -1 -1 -1 -1 476.TIF 1965 3 29 14 -1 -1 -1 -1 -1 -1 -1 478.TIF 1965 4 5 22 -1 SO -1 -1 SC -1 -1 -1 -1 479.TIF 1965 4 19 -1 -1 OW -1 -1 -1 -1 -1 -1 481.TIF 1966 3 7 18 -1 SO -1 -1 -1 -1 -1 -1 484.TIF 1966 3 28 -1 -1 OW -1 -1 -1 -1 -1 -1 487.TIF 1967 3 13 27 -1 -1 -1 -1 -1 -1 -1 491.TIF 1967 3 20 27 -1 -1 -1 -1 -1 -1 -1 492.TIF 1967 3 27 28 -1 -1 -1 -1 -1 -1 -1 493.TIF 1967 4 3 24 -1 -1 -1 -1 -1 -1 -1 494.TIF 1968 3 18 12 -1 -1 -1 -1 -1 -1 -1 498.TIF 1968 4 1 -1 -1 RT -1 -1 -1 -1 -1 -1 500.TIF 1969 2 24 24 -1 -1 -1 -1 -1 -1 -1 503.TIF 1970 3 17 24 -1 -1 -1 -1 -1 -1 -1 512.TIF 1970 4 14 -1 -1 IP -1 -1 -1 -1 -1 -1 516.TIF 1970 4 21 -1 -1 OW -1 -1 -1 -1 -1 -1 517.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.