GREAT LAKES ENVIRONMENTAL RESEARCH LABORATORY, NOAA Climate Data Modernization Project National Weather Service Historical Great Lakes Ice Reports for Winters 1899 - 1970 Site No. 189, Approximate Location: 44.25 N. Latitude, 83.45 W. Longitude Site Name Tawas City Harbor on Lake Huron ---------------------------------------------------------------------------------------------------------- Year Mo Da T1 T2 C1 T1C1 T2C1 C2 T1C2 T2C2 C3 T1C3 T2C3 IMAGE Supplemental Information ---------------------------------------------------------------------------------------------------------- 1969 2 24 40 -1 -1 -1 -1 -1 -1 -1 503.TIF 1969 3 3 20 -1 -1 -1 -1 -1 -1 -1 504.TIF (60% ICE COVER) 1969 3 10 34 -1 -1 -1 -1 -1 -1 -1 505.TIF (60% ICE COVER) 1969 3 17 33 -1 -1 -1 -1 -1 -1 -1 506.TIF 1969 3 24 29 -1 -1 -1 -1 -1 -1 -1 507.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.