GREAT LAKES ENVIRONMENTAL RESEARCH LABORATORY, NOAA Climate Data Modernization Project National Weather Service Historical Great Lakes Ice Reports for Winters 1899 - 1970 Site No. 459, Approximate Location: 43.65 N. Latitude, 79.45 W. Longitude Site Name Toronto on Lake Ontario ---------------------------------------------------------------------------------------------------------- Year Mo Da T1 T2 C1 T1C1 T2C1 C2 T1C2 T2C2 C3 T1C3 T2C3 IMAGE Supplemental Information ---------------------------------------------------------------------------------------------------------- 1911 3 21 -1 -1 DI -1 -1 -1 -1 -1 -1 079.TIF LAKE 1911 4 4 -1 -1 LI -1 -1 -1 -1 -1 -1 081.TIF LAKE 1912 3 5 -1 -1 IP -1 -1 -1 -1 -1 -1 082.TIF BAY 1912 3 12 24 -1 SO -1 -1 -1 -1 -1 -1 083.TIF BAY 1912 3 26 -1 -1 BK -1 -1 -1 -1 -1 -1 085.TIF EAST END OF BAY 1912 4 16 -1 -1 IP -1 -1 -1 -1 -1 -1 088.TIF ABOUT 1/3 OF BAY 1913 3 4 18 -1 SO -1 -1 -1 -1 -1 -1 090.TIF WEST & CENTER PORTIONS OF BAY 1913 3 4 -1 -1 IP -1 -1 -1 -1 -1 -1 090.TIF EAST PORTION OF BAY 1914 3 10 24 -1 SO -1 -1 -1 -1 -1 -1 099.TIF BAY 1918 4 2 -1 -1 SO -1 -1 -1 -1 -1 -1 132.TIF MAIN PORTION OF BAY 1923 3 13 -1 -1 SO -1 -1 -1 -1 -1 -1 156.TIF BAY 1924 3 4 18 -1 -1 -1 -1 -1 -1 -1 163.TIF BAY 1934 4 3 -1 -1 OW -1 -1 -1 -1 -1 -1 232.TIF 1935 3 5 -1 -1 IP -1 -1 -1 -1 -1 -1 237.TIF BAY 1935 3 5 -1 -1 OW -1 -1 -1 -1 -1 -1 237.TIF EAST & WEST BAY ENTRANCES 1936 3 30 -1 -1 SO -1 -1 -1 -1 -1 -1 247.TIF NEW SHIP CHANNEL 1936 4 6 -1 -1 OW -1 -1 -1 -1 -1 -1 248.TIF 1938 3 7 -1 -1 LI -1 -1 -1 -1 -1 -1 261.TIF 1938 3 14 -1 -1 OW -1 -1 -1 -1 -1 -1 262.TIF LAKE 1939 3 20 -1 -1 DI -1 -1 SI -1 -1 -1 -1 270.TIF 1939 3 27 -1 -1 IP -1 -1 -1 -1 -1 -1 271.TIF ALONG SHORE 1940 3 4 -1 -1 IP -1 -1 -1 -1 -1 -1 277.TIF TO 1/2Mi OUT 1940 3 4 -1 -1 OW -1 -1 -1 -1 -1 -1 277.TIF BEYOND 1/2Mi OUT 1940 3 18 -1 -1 FD -1 -1 -1 -1 -1 -1 279.TIF 1940 4 1 -1 -1 OW -1 -1 -1 -1 -1 -1 281.TIF LAKE 1941 3 17 -1 -1 OW -1 -1 -1 -1 -1 -1 287.TIF LAKE 1941 3 31 -1 -1 DI -1 -1 -1 -1 -1 -1 289.TIF LAKE 1941 4 7 -1 -1 OW -1 -1 -1 -1 -1 -1 290.TIF LAKE 1943 3 1 -1 -1 DI -1 -1 -1 -1 -1 -1 298.TIF LAKE 1944 3 20 -1 -1 LF -1 -1 -1 -1 -1 -1 310.TIF LAKE 1946 3 4 -1 -1 FD -1 -1 BK -1 -1 CL -1 -1 318.TIF LAKE 1946 3 4 420 -1 PI -1 -1 -1 -1 -1 -1 318.TIF ALONG SHORE 1946 3 11 -1 -1 RT -1 -1 -1 -1 -1 -1 319.TIF SHIP CHANNEL 1946 3 11 -1 -1 RT -1 -1 -1 -1 -1 -1 319.TIF SHORE ICE 1946 3 18 -1 -1 OW -1 -1 -1 -1 -1 -1 320.TIF LAKE 1947 3 3 14 18 SO -1 -1 -1 -1 -1 -1 326.TIF SHIP CHANNEL 1947 3 3 -1 -1 OW -1 -1 -1 -1 -1 -1 326.TIF LAKE 1948 3 22 -1 -1 FD -1 -1 DI -1 -1 -1 -1 337.TIF LAKE 1950 3 20 -1 -1 SO -1 -1 -1 -1 -1 -1 352.TIF SHIP CHANNEL ABOVE BRIDGE 1950 3 27 -1 -1 SO -1 -1 RT -1 -1 -1 -1 353.TIF SHIP CHANNEL ABOVE BRIDGE 1951 3 19 -1 -1 IP -1 -1 -1 -1 -1 -1 362.TIF FRENCHMANS BAY 1954 3 8 -1 -1 OW -1 -1 -1 -1 -1 -1 382.TIF LAKE 1954 3 8 -1 -1 OW -1 -1 -1 -1 -1 -1 382.TIF EAST GAP 1955 3 7 -1 -1 OW -1 -1 -1 -1 -1 -1 392.TIF LAKE 1955 3 7 -1 -1 IP -1 -1 -1 -1 -1 -1 392.TIF ALONG SHORE 1956 3 5 -1 -1 RT -1 -1 -1 -1 -1 -1 400.TIF EAST GAP TUNING BASIN 1957 3 4 -1 -1 OW -1 -1 -1 -1 -1 -1 410.TIF EAST GAP: SHORE ICE ONLY 1957 3 11 -1 -1 OW -1 -1 -1 -1 -1 -1 412.TIF EAST GAP 1959 3 30 -1 -1 OW -1 -1 -1 -1 -1 -1 429.TIF E & W CHANNEL ENTRACES TO BAY 1959 4 6 -1 -1 OW -1 -1 -1 -1 -1 -1 430.TIF 1960 3 7 -1 -1 IP -1 -1 -1 -1 -1 -1 434.TIF LAKE 1960 3 28 -1 -1 OW -1 -1 -1 -1 -1 -1 437.TIF LAKE 1961 2 27 -1 -1 OW -1 -1 -1 -1 -1 -1 440.TIF BAY 1961 2 27 -1 -1 OW -1 -1 -1 -1 -1 -1 440.TIF LAKE 1961 2 27 -1 -1 OW -1 -1 -1 -1 -1 -1 440.TIF E & W CHANNELS 1962 2 26 -1 -1 DI -1 -1 -1 -1 -1 -1 447.TIF LAKE 1962 3 12 12 -1 FS -1 -1 CL -1 -1 -1 -1 449.TIF BAY: CENTRAL & W END 1962 3 12 -1 -1 OW -1 -1 -1 -1 -1 -1 449.TIF BAY: EXCEPT CENTRAL & W END 1962 3 12 -1 -1 IJ -1 -1 -1 -1 -1 -1 449.TIF N SHORE 1962 3 19 -1 -1 OW -1 -1 -1 -1 -1 -1 450.TIF BAY: EXCEPT IN E END 1962 3 19 -1 -1 LF -1 -1 PN -1 -1 -1 -1 450.TIF BAY: E END 1962 3 19 -1 -1 PN -1 -1 SW -1 -1 -1 -1 450.TIF SHIP CHANNEL 1962 3 19 -1 -1 FS -1 -1 -1 -1 -1 -1 450.TIF TURNING BASIN 1962 3 19 -1 -1 OW -1 -1 BV -1 -1 -1 -1 450.TIF LAKE 1963 3 11 -1 -1 OW -1 -1 -1 -1 -1 -1 458.TIF LAKE 1963 3 18 -1 -1 OW -1 -1 -1 -1 -1 -1 459.TIF BAY & LAKE 1964 3 2 -1 -1 OW -1 -1 -1 -1 -1 -1 466.TIF LAKE 1964 3 16 -1 -1 OW -1 -1 -1 -1 -1 -1 468.TIF LAKE 1965 2 23 -1 -1 OW -1 -1 -1 -1 -1 -1 473.TIF BAY 1965 3 1 3 4 -1 -1 -1 -1 -1 -1 474.TIF BAY 1965 3 29 -1 -1 OW -1 -1 -1 -1 -1 -1 478.TIF 1966 2 28 -1 -1 OW -1 -1 -1 -1 -1 -1 483.TIF LAKE 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 ---------------------------------------------------------------------------------------------------------- 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.