GREAT LAKES ENVIRONMENTAL RESEARCH LABORATORY, NOAA Climate Data Modernization Project National Weather Service Historical Great Lakes Ice Reports for Winters 1899 - 1970 Site No. 248, Approximate Location: 45.50 N. Latitude, 86.77 W. Longitude Site Name St. Martins Island on Lake Michigan ---------------------------------------------------------------------------------------------------------- Year Mo Da T1 T2 C1 T1C1 T2C1 C2 T1C2 T2C2 C3 T1C3 T2C3 IMAGE Supplemental Information ---------------------------------------------------------------------------------------------------------- 1939 4 17 15 -1 FD -1 -1 -1 -1 -1 -1 274.TIF 1946 3 18 -1 -1 OW -1 -1 -1 -1 -1 -1 320.TIF PASSAGE: TO POVERTY ISLAND 1947 3 31 -1 -1 OW -1 -1 -1 -1 -1 -1 330.TIF PASSAGE 1948 3 22 -1 -1 IP -1 -1 -1 -1 -1 -1 337.TIF PASSAGE 1950 4 10 -1 -1 OW -1 -1 -1 -1 -1 -1 355.TIF SOUTHWARD 1951 3 19 -1 -1 LI -1 -1 -1 -1 -1 -1 362.TIF TO THE NW & W 1951 3 26 -1 -1 IP -1 -1 -1 -1 -1 -1 363.TIF 1954 3 8 8 10 RI -1 -1 -1 -1 -1 -1 382.TIF 1954 3 15 -1 -1 IP -1 -1 SC -1 -1 -1 -1 383.TIF PASSAGE 1954 3 22 -1 -1 IP -1 -1 -1 -1 -1 -1 384.TIF NORTH OF ISLAND 1956 2 27 -1 -1 OW -1 -1 -1 -1 -1 -1 397.TIF NORTH END OF ISLAND 1956 3 5 -1 -1 OW -1 -1 -1 -1 -1 -1 399.TIF PASSAGES 1956 3 12 -1 -1 OW -1 -1 -1 -1 -1 -1 401.TIF PASSAGE: TO BOYER BLUFF 1956 3 19 -1 -1 NI -1 -1 SM -1 -1 SW -1 -1 402.TIF PASSAGE 1956 3 26 -1 -1 LF -1 -1 -1 -1 -1 -1 403.TIF PASSAGE 1957 3 4 -1 -1 SW -1 -1 -1 -1 -1 -1 409.TIF PASSAGE: TO BOYER BLUFF 1957 3 11 -1 -1 DI -1 -1 SW -1 -1 -1 -1 411.TIF PASSAGE: TO MINNEAPOLIS SHOAL 1957 3 25 -1 -1 LI -1 -1 -1 -1 -1 -1 413.TIF 1958 2 24 18 24 SO -1 -1 -1 -1 -1 -1 416.TIF PASSAGE 1958 3 10 -1 -1 OW -1 -1 -1 -1 -1 -1 418.TIF PASSAGE 1958 3 24 -1 -1 SW -1 -1 -1 -1 -1 -1 420.TIF PASSAGE: TO MINNEAPOLIS SHOAL 1959 3 9 -1 -1 SW -1 -1 -1 -1 -1 -1 425.TIF PASSAGE: TO BOYER BLUFF 1959 3 23 -1 -1 WI -1 -1 SC -1 -1 -1 -1 427.TIF PASSAGE: TO BOYER BLUFF 1959 3 30 -1 -1 HF -1 -1 DI -1 -1 -1 -1 429.TIF PASSAGE 1959 4 13 -1 -1 OW -1 -1 -1 -1 -1 -1 431.TIF PASSAGE: TO MINNEAPOLIS SHOAL 1960 2 19 -1 -1 OW -1 -1 -1 -1 -1 -1 523.TIF PASSAGE & LEADS TO BOYER BLUFF 1960 3 14 4 6 NI -1 -1 -1 -1 -1 -1 435.TIF PASSAGE 1961 3 13 -1 -1 LI -1 -1 BI -1 -1 -1 -1 442.TIF PASSAGE 1964 3 16 12 -1 DI -1 -1 SI -1 -1 SW -1 -1 468.TIF TO PENINSULA POINT 1967 3 20 23 -1 FS -1 -1 -1 -1 -1 -1 492.TIF PASSAGE 1967 4 3 -1 -1 OW -1 -1 -1 -1 -1 -1 494.TIF PASSAGE ---------------------------------------------------------------------------------------------------------- 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.