GREAT LAKES ENVIRONMENTAL RESEARCH LABORATORY, NOAA Climate Data Modernization Project National Weather Service Historical Great Lakes Ice Reports for Winters 1899 - 1970 Site No. 493, Approximate Location: 45.03 N. Latitude, 74.75 W. Longitude Site Name Cornwall on St. Lawrence River ---------------------------------------------------------------------------------------------------------- Year Mo Da T1 T2 C1 T1C1 T2C1 C2 T1C2 T2C2 C3 T1C3 T2C3 IMAGE Supplemental Information ---------------------------------------------------------------------------------------------------------- 1963 4 8 -1 -1 OW -1 -1 -1 -1 -1 -1 462.TIF RIVER 1963 4 8 -1 -1 OW -1 -1 -1 -1 -1 -1 462.TIF EASTWARD: N SIDE 1963 4 8 -1 -1 FS -1 -1 BV -1 -1 -1 -1 462.TIF S SHORE 1964 3 23 -1 -1 LI -1 -1 -1 -1 -1 -1 469.TIF SURROUNDING CHANNEL 1965 3 29 -1 -1 IP -1 -1 -1 -1 -1 -1 478.TIF BAY SHORES ON N SIDE OF ISLAND 1966 3 14 -1 -1 PI -1 -1 -1 -1 -1 -1 485.TIF TO LAKE ST. LOUIS ---------------------------------------------------------------------------------------------------------- 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.