GREAT LAKES ENVIRONMENTAL RESEARCH LABORATORY, NOAA Climate Data Modernization Project National Weather Service Historical Great Lakes Ice Reports for Winters 1899 - 1970 Site No. 285, Approximate Location: 44.79 N. Latitude, 85.68 W. Longitude Site Name Grand Traverse Bay on Lake Michigan ---------------------------------------------------------------------------------------------------------- Year Mo Da T1 T2 C1 T1C1 T2C1 C2 T1C2 T2C2 C3 T1C3 T2C3 IMAGE Supplemental Information ---------------------------------------------------------------------------------------------------------- 1917 3 13 24 -1 -1 -1 -1 -1 -1 -1 121.TIF 1935 3 12 -1 -1 LF -1 -1 -1 -1 -1 -1 238.TIF 1935 3 19 -1 -1 LF -1 -1 -1 -1 -1 -1 239.TIF 1937 3 29 -1 -1 SO -1 -1 -1 -1 -1 -1 257.TIF 1937 4 12 -1 -1 HF -1 -1 SW -1 -1 -1 -1 259.TIF 1940 3 11 -1 -1 OW -1 -1 -1 -1 -1 -1 278.TIF 1940 3 18 -1 -1 LI -1 -1 -1 -1 -1 -1 279.TIF 1943 3 1 5 -1 -1 -1 -1 -1 -1 -1 298.TIF TO SUTTONS BAY 1943 3 15 -1 -1 SO -1 -1 -1 -1 -1 -1 300.TIF 1946 3 11 -1 -1 OW -1 -1 -1 -1 -1 -1 319.TIF EXCEPT MOUTH 1946 3 11 -1 -1 DI -1 -1 -1 -1 -1 -1 319.TIF MOUTH OF BAY 1946 3 11 -1 -1 HF -1 -1 DI -1 -1 -1 -1 319.TIF TO STURGEON BAY 1946 3 18 -1 -1 OW -1 -1 -1 -1 -1 -1 320.TIF 1947 3 10 -1 -1 IP -1 -1 BV -1 -1 -1 -1 327.TIF GRAND TRAVERSE LIGHT 1947 3 17 -1 -1 OW -1 -1 DI -1 -1 -1 -1 328.TIF BEYOND GRAND TRAVERSE LIGHT 1947 4 14 -1 -1 OW -1 -1 -1 -1 -1 -1 332.TIF 1948 3 29 -1 -1 SO -1 -1 -1 -1 -1 -1 338.TIF 1949 2 28 -1 -1 OW -1 -1 -1 -1 -1 -1 526.TIF 1949 3 7 -1 -1 OW -1 -1 -1 -1 -1 -1 341.TIF 1950 3 6 -1 -1 IP -1 -1 -1 -1 -1 -1 350.TIF HEAD OF BAY 1950 4 10 -1 -1 OW -1 -1 -1 -1 -1 -1 355.TIF 1951 3 5 -1 -1 OW -1 -1 -1 -1 -1 -1 360.TIF LAKE: FROM LIGHT 1951 3 19 -1 -1 LI -1 -1 -1 -1 -1 -1 362.TIF LAKE: SOUTHWARD 1952 3 3 -1 -1 IP -1 -1 -1 -1 -1 -1 368.TIF 1952 3 10 -1 -1 DI -1 -1 -1 -1 -1 -1 369.TIF 1952 3 17 -1 -1 OW -1 -1 -1 -1 -1 -1 370.TIF EXCEPT 3Mi IN TIP OF EACH ARM 1953 3 9 -1 -1 OW -1 -1 -1 -1 -1 -1 376.TIF 1953 3 9 -1 -1 OW -1 -1 -1 -1 -1 -1 376.TIF GRAND TRAVERSE LIGHT 1953 3 16 -1 -1 OW -1 -1 -1 -1 -1 -1 378.TIF 1954 3 8 -1 -1 OW -1 -1 -1 -1 -1 -1 382.TIF 1955 3 7 -1 -1 OW -1 -1 BV -1 -1 -1 -1 391.TIF FROM LIGHT 1956 3 12 -1 -1 OW -1 -1 -1 -1 -1 -1 401.TIF 1956 3 19 -1 -1 NI -1 -1 -1 -1 -1 -1 402.TIF 1956 3 26 -1 -1 DI -1 -1 -1 -1 -1 -1 403.TIF 1957 3 11 -1 -1 FD -1 -1 CL -1 -1 -1 -1 411.TIF NORTHPORT: TO 1Mi N OF MOUTH 1958 3 3 -1 -1 SO -1 -1 -1 -1 -1 -1 417.TIF TO NEW MISSION POINT 1958 3 3 -1 -1 HF -1 -1 PN -1 -1 SW -1 -1 417.TIF NEW MISSION POINT: NORTHWARD 1958 3 10 -1 -1 HF -1 -1 -1 -1 -1 -1 418.TIF 1958 3 17 -1 -1 OW -1 -1 -1 -1 -1 -1 419.TIF 1958 3 24 -1 -1 OW -1 -1 -1 -1 -1 -1 420.TIF 1959 3 16 -1 -1 SO -1 -1 -1 -1 -1 -1 426.TIF 1959 4 6 -1 -1 SO -1 -1 -1 -1 -1 -1 430.TIF 1960 3 14 -1 -1 IP -1 -1 -1 -1 -1 -1 435.TIF MOUTH OF BAY 1960 3 21 -1 -1 OW -1 -1 -1 -1 -1 -1 436.TIF MOUTH OF BAY 1960 3 28 -1 -1 OW -1 -1 -1 -1 -1 -1 437.TIF 1961 2 27 -1 -1 OW -1 -1 -1 -1 -1 -1 440.TIF OMENA POINT: NORTHWARD 1962 3 5 -1 -1 SO -1 -1 -1 -1 -1 -1 448.TIF BAY & ALL HARBORS 1962 3 12 -1 -1 SO -1 -1 -1 -1 -1 -1 449.TIF BAY & ALL HARBORS 1962 3 19 10 12 SO -1 -1 -1 -1 -1 -1 450.TIF 1962 3 26 -1 -1 SO -1 -1 -1 -1 -1 -1 451.TIF 1962 4 2 -1 -1 RT -1 -1 DI -1 -1 -1 -1 452.TIF 1963 2 25 -1 -1 SO -1 -1 -1 -1 -1 -1 456.TIF 1963 3 4 -1 -1 SO -1 -1 -1 -1 -1 -1 457.TIF 1963 3 11 -1 -1 SO -1 -1 -1 -1 -1 -1 458.TIF 1963 3 18 -1 -1 SO -1 -1 -1 -1 -1 -1 459.TIF 1963 3 25 -1 -1 SO -1 -1 -1 -1 -1 -1 460.TIF 1963 4 1 -1 -1 HF -1 -1 WI -1 -1 -1 -1 461.TIF 1963 4 1 16 -1 BK -1 -1 -1 -1 -1 -1 461.TIF CHANNEL (CUT) 1963 4 8 -1 -1 WI -1 -1 -1 -1 -1 -1 462.TIF 1963 4 8 -1 -1 OW -1 -1 -1 -1 -1 -1 462.TIF WESTERN PORTION 1963 4 15 7 10 FD -1 -1 FS -1 -1 -1 -1 463.TIF TO CHARLEVOIX 1965 3 22 -1 -1 OW -1 -1 -1 -1 -1 -1 477.TIF EXCEPT E & W ARMS & HARBORS 1965 3 29 4 5 FD -1 -1 FS -1 -1 CL -1 -1 478.TIF 1965 4 12 8 10 RT -1 -1 -1 -1 -1 -1 480.TIF BAY & ALL HARBORS 1966 3 7 -1 -1 OW -1 -1 -1 -1 -1 -1 484.TIF 1966 3 14 -1 -1 OW -1 -1 -1 -1 -1 -1 485.TIF 1967 3 6 -1 -1 SW -1 -1 -1 -1 -1 -1 490.TIF 1967 3 20 -1 -1 PI -1 -1 DI -1 -1 IN -1 -1 492.TIF 1967 3 27 -1 -1 PI -1 -1 -1 -1 -1 -1 493.TIF 1968 2 26 4 10 -1 -1 -1 -1 -1 -1 521.TIF 1968 3 4 -1 -1 FS -1 -1 -1 -1 -1 -1 520.TIF 1968 3 11 -1 -1 FS -1 -1 -1 -1 -1 -1 497.TIF 1968 3 18 -1 -1 SO -1 -1 FS -1 -1 -1 -1 498.TIF 1968 3 25 6 8 FS -1 -1 SO -1 -1 -1 -1 499.TIF 1968 4 1 -1 -1 FS -1 -1 -1 -1 -1 -1 500.TIF 1969 3 3 20 -1 FS -1 -1 -1 -1 -1 -1 504.TIF PART OF BAY 1969 3 10 20 -1 FS -1 -1 -1 -1 -1 -1 505.TIF N PORTIONS 1970 2 24 -1 -1 SO -1 -1 -1 -1 -1 -1 519.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.