GREAT LAKES ENVIRONMENTAL RESEARCH LABORATORY, NOAA Climate Data Modernization Project National Weather Service Historical Great Lakes Ice Reports for Winters 1899 - 1970 Site No. 007, Approximate Location: 48.42 N. Latitude, 89.15 W. Longitude Site Name Port Arthur Out of BW on Lake Superior ---------------------------------------------------------------------------------------------------------- Year Mo Da T1 T2 C1 T1C1 T2C1 C2 T1C2 T2C2 C3 T1C3 T2C3 IMAGE Supplemental Information ---------------------------------------------------------------------------------------------------------- 1910 3 8 -1 -1 OW -1 -1 -1 -1 -1 -1 072.TIF BEYOND THUNDER CAPE 1920 3 16 18 23 -1 -1 -1 -1 -1 -1 141.TIF TO 30Mi OUT 1920 3 23 18 23 -1 -1 -1 -1 -1 -1 142.TIF TO 30Mi OUT 1920 3 30 18 23 -1 -1 -1 -1 -1 -1 143.TIF 1920 4 8 15 18 -1 -1 -1 -1 -1 -1 145.TIF 1931 3 3 9 12 -1 -1 -1 -1 -1 -1 209.TIF 1932 3 8 16 -1 -1 -1 -1 -1 -1 -1 215.TIF 1932 3 22 14 -1 IP -1 -1 BV -1 -1 -1 -1 217.TIF 1939 5 1 22 -1 IP -1 -1 SW -1 -1 -1 -1 276.TIF OUTER FIELD: TO CAPE 1943 3 1 30 -1 -1 -1 -1 -1 -1 -1 298.TIF 1MI E OF BW: TO THUNDER BAY 1943 4 19 -1 -1 BK -1 -1 -1 -1 -1 -1 305.TIF OUTER ICE FIELDS (CUT) 1946 3 18 33 -1 -1 -1 -1 -1 -1 -1 320.TIF 2 & 1/2Mi EAST 1946 3 25 28 30 -1 -1 -1 -1 -1 -1 321.TIF 5Mi OUT 1955 3 14 20 24 -1 -1 -1 -1 -1 -1 393.TIF 1/4Mi OUT FROM BW 1961 4 3 -1 -1 SO -1 -1 RT -1 -1 -1 -1 445.TIF 1964 3 16 -1 -1 SO -1 -1 -1 -1 -1 -1 468.TIF BW TO WELCOME ISLAND 1964 3 23 -1 -1 SO -1 -1 -1 -1 -1 -1 469.TIF BW TO WELCOME ISLAND 1964 4 6 -1 -1 FD -1 -1 -1 -1 -1 -1 471.TIF BW TO WELCOME ISLAND ---------------------------------------------------------------------------------------------------------- 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.