GREAT LAKES ENVIRONMENTAL RESEARCH LABORATORY, NOAA Climate Data Modernization Project National Weather Service Historical Great Lakes Ice Reports for Winters 1899 - 1970 Site No. 085, Approximate Location: 46.53 N. Latitude, 84.58 W. Longitude Site Name Gros Cap Reef on St. Marys River ---------------------------------------------------------------------------------------------------------- Year Mo Da T1 T2 C1 T1C1 T2C1 C2 T1C2 T2C2 C3 T1C3 T2C3 IMAGE Supplemental Information ---------------------------------------------------------------------------------------------------------- 1951 3 12 10 -1 -1 -1 -1 -1 -1 -1 361.TIF 1952 4 7 -1 -1 PR -1 -1 -1 -1 -1 -1 373.TIF TO 6Mi OUT 1954 3 1 -1 -1 WI -1 -1 BV -1 -1 -1 -1 381.TIF 1956 3 19 16 -1 SC 12 18 -1 -1 -1 -1 402.TIF TO BAY MILLS CHANNEL 1957 4 1 5 10 -1 -1 -1 -1 -1 -1 414.TIF 1958 3 10 -1 -1 WI -1 -1 -1 -1 -1 -1 418.TIF 5Mi WEST OF GROS CAP 1958 3 10 14 18 -1 -1 -1 -1 -1 -1 418.TIF TO BIRCH POINT 1958 3 24 14 -1 FD -1 -1 FS -1 -1 SL -1 -1 420.TIF GROS CAP TO ROUND ISLAND 1958 4 7 -1 -1 IP -1 -1 -1 -1 -1 -1 422.TIF TO SOO 1959 3 30 -1 -1 RT -1 -1 -1 -1 -1 -1 429.TIF CHANNEL: TO ROUND ISLAND 1959 4 6 -1 -1 RT -1 -1 -1 -1 -1 -1 430.TIF CHANNEL: TO ROUND ISLAND 1959 4 20 -1 -1 IP -1 -1 -1 -1 -1 -1 432.TIF TO OPEN LAKE 1959 4 27 -1 -1 DI -1 -1 PN -1 -1 -1 -1 433.TIF TO S END OF ISLE PARISIENNE 1960 3 7 -1 -1 IP -1 -1 -1 -1 -1 -1 434.TIF TO PIPE ISLAND 1960 3 21 21 -1 FS -1 -1 CL -1 -1 -1 -1 436.TIF TO PIPE ISLAND 1962 4 16 7 16 FS -1 -1 SI -1 -1 RT -1 -1 454.TIF TO IROQUOIS SHOAL 1966 3 21 -1 -1 OW -1 -1 -1 -1 -1 -1 486.TIF MAIN CHANNEL: TO WHITEFISH PT. 1966 4 4 -1 -1 IJ -1 -1 -1 -1 -1 -1 488.TIF 1968 3 18 18 26 -1 -1 -1 -1 -1 -1 498.TIF TO LOCKS (100% ICE COVER) 1968 4 1 20 26 SO -1 -1 -1 -1 -1 -1 500.TIF TO BIRCH POINT ---------------------------------------------------------------------------------------------------------- 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.