GREAT LAKES ENVIRONMENTAL RESEARCH LABORATORY, NOAA Climate Data Modernization Project National Weather Service Historical Great Lakes Ice Reports for Winters 1899 - 1970 Site No. 490, Approximate Location: 45.22 N. Latitude, 74.50 W. Longitude Site Name Lake St. Francis on St. Lawrence River ---------------------------------------------------------------------------------------------------------- Year Mo Da T1 T2 C1 T1C1 T2C1 C2 T1C2 T2C2 C3 T1C3 T2C3 IMAGE Supplemental Information ---------------------------------------------------------------------------------------------------------- 1962 2 26 11 -1 FS -1 -1 SC -1 -1 BV -1 -1 447.TIF LOWER END 1962 3 5 -1 -1 CL -1 -1 FS -1 -1 SW -1 -1 448.TIF UPPER END 1962 3 12 9 -1 FS -1 -1 BV -1 -1 -1 -1 449.TIF LOWER END 1962 3 19 -1 -1 SW -1 -1 -1 -1 -1 -1 450.TIF LOWER END: OFF VALLEYFIELD BR. 1963 2 25 -1 -1 FS -1 -1 CL -1 -1 -1 -1 456.TIF UPPER LAKE 1963 2 25 19 -1 SO -1 -1 -1 -1 -1 -1 456.TIF LOWER LAKE 1963 3 4 -1 -1 FS -1 -1 CL -1 -1 -1 -1 457.TIF UPPER LAKE 1963 3 4 20 -1 SO -1 -1 -1 -1 -1 -1 457.TIF LOWER LAKE 1963 3 11 -1 -1 FS -1 -1 CL -1 -1 -1 -1 458.TIF UPPER LAKE 1963 3 11 20 -1 SO -1 -1 CL -1 -1 -1 -1 458.TIF LOWER LAKE 1963 3 18 -1 -1 FS -1 -1 CL -1 -1 SW -1 -1 459.TIF UPPER LAKE 1963 3 18 22 -1 SO -1 -1 -1 -1 -1 -1 459.TIF LOWER LAKE 1964 3 9 -1 -1 OW -1 -1 -1 -1 -1 -1 467.TIF UPPER END: TO THE WEST 1964 3 9 -1 -1 CL -1 -1 FS -1 -1 SL -1 -1 467.TIF UPPER END: TO THE EAST 1964 3 16 -1 -1 OW -1 -1 -1 -1 -1 -1 468.TIF UPPER END: E & W 1964 3 23 -1 -1 LI -1 -1 -1 -1 -1 -1 469.TIF SURROUNDING CHANNEL 1965 3 15 -1 -1 OW -1 -1 -1 -1 -1 -1 476.TIF ABOVE BRIDGE #10 1965 3 15 -1 -1 FD -1 -1 DI -1 -1 -1 -1 476.TIF BELOW BRIDGE #10 1965 3 15 -1 -1 IP -1 -1 -1 -1 -1 -1 476.TIF BELOW LOCK #3 1965 4 12 -1 -1 IP -1 -1 RT -1 -1 -1 -1 480.TIF 1966 2 28 -1 -1 SO -1 -1 -1 -1 -1 -1 483.TIF ALONG SHORE 1966 2 28 -1 -1 OW -1 -1 -1 -1 -1 -1 483.TIF LAKE 1966 3 7 -1 -1 SO -1 -1 -1 -1 -1 -1 484.TIF ALONG SHORE 1966 3 7 -1 -1 PI -1 -1 -1 -1 -1 -1 484.TIF MOST OF LAKE 1966 3 14 -1 -1 PI -1 -1 SO -1 -1 -1 -1 485.TIF SHORE TO SHORE 1966 3 28 -1 -1 DI -1 -1 BK -1 -1 -1 -1 487.TIF EAST END 1967 3 20 -1 -1 FS -1 -1 -1 -1 -1 -1 492.TIF 1967 4 3 -1 -1 IP -1 -1 BV -1 -1 -1 -1 494.TIF 1968 3 4 20 28 -1 -1 -1 -1 -1 -1 520.TIF 1970 3 3 22 -1 SW -1 -1 -1 -1 -1 -1 518.TIF 1970 3 10 -1 -1 IP -1 -1 SW -1 -1 -1 -1 511.TIF 1970 3 17 -1 -1 IP -1 -1 BV -1 -1 SW -1 -1 512.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.