GREAT LAKES ENVIRONMENTAL RESEARCH LABORATORY, NOAA Climate Data Modernization Project National Weather Service Historical Great Lakes Ice Reports for Winters 1899 - 1970 Site No. 304, Approximate Location: 44.00 N. Latitude, 87.00 W. Longitude Site Name Lake Michigan on Lake Michigan ---------------------------------------------------------------------------------------------------------- Year Mo Da T1 T2 C1 T1C1 T2C1 C2 T1C2 T2C2 C3 T1C3 T2C3 IMAGE Supplemental Information ---------------------------------------------------------------------------------------------------------- 1909 4 13 -1 -1 OW -1 -1 -1 -1 -1 -1 070.TIF E & W SHORES SOUTH OF ISLANDS 1913 3 25 -1 -1 OW -1 -1 -1 -1 -1 -1 093.TIF WEST SHORE 1913 4 1 -1 -1 OW -1 -1 -1 -1 -1 -1 094.TIF WEST SHORE OF LAKE 1914 3 10 -1 -1 OW -1 -1 -1 -1 -1 -1 099.TIF W SHORE HARBORS: S OF KEWAUNEE 1914 3 10 -1 -1 OW -1 -1 -1 -1 -1 -1 099.TIF E SHORE HARBORS N TO GLEN H. 1914 3 17 -1 -1 OW -1 -1 -1 -1 -1 -1 100.TIF EAST SHORE NORTH TO GLEN HAVEN 1914 3 31 -1 -1 OW -1 -1 -1 -1 -1 -1 102.TIF WEST SHORE: NORTH TO NORTHPORT 1914 3 31 -1 -1 OW -1 -1 -1 -1 -1 -1 102.TIF EAST SHORE NORTH TO NORTHPORT 1915 3 9 -1 -1 OW -1 -1 -1 -1 -1 -1 106.TIF EAST SHORE NORTH TO GLEN HAVEN 1915 3 23 -1 -1 OW -1 -1 -1 -1 -1 -1 108.TIF EAST SHORE NORTH TO HARBOR SP. 1915 4 6 -1 -1 OW -1 -1 -1 -1 -1 -1 110.TIF E SHORE NORTH TO TRAVERSE BAY 1915 4 13 -1 -1 OW -1 -1 -1 -1 -1 -1 111.TIF CENTRAL & SOUTHERN PORTIONS 1916 3 14 -1 -1 LI -1 -1 -1 -1 -1 -1 114.TIF CENTRAL & SOUTHERN PORTIONS 1916 4 11 -1 -1 OW -1 -1 -1 -1 -1 -1 118.TIF CENTRAL & SOUTHERN PORTIONS 1916 4 18 -1 -1 OW -1 -1 -1 -1 -1 -1 119.TIF CENTRAL & SOUTHERN PORTIONS 1917 4 10 -1 -1 OW -1 -1 -1 -1 -1 -1 125.TIF EAST SHORE NORTH TO MANISTEE 1918 4 23 -1 -1 OW -1 -1 -1 -1 -1 -1 135.TIF STRAITS 1921 3 15 -1 -1 OW -1 -1 -1 -1 -1 -1 147.TIF WEST SHORE: SOUTH TO CHICAGO 1921 3 15 -1 -1 OW -1 -1 -1 -1 -1 -1 147.TIF E SHORE NORTH TO BEAVER ISLAND 1921 3 22 -1 -1 OW -1 -1 -1 -1 -1 -1 148.TIF SOUTH OF STRAITS 1922 3 7 -1 -1 HF -1 -1 -1 -1 -1 -1 149.TIF SOUTHEAST PORTION 1922 3 7 -1 -1 DI -1 -1 -1 -1 -1 -1 149.TIF WEST SHORE 1922 3 14 -1 -1 OW -1 -1 -1 -1 -1 -1 150.TIF WEST & SOUTH SHORE 1922 3 14 -1 -1 OW -1 -1 -1 -1 -1 -1 150.TIF EAST SHORE TO N. MANITOU ISL. 1922 3 21 -1 -1 OW -1 -1 -1 -1 -1 -1 151.TIF WEST SHORE: NORTH TO N. MANITO 1922 3 21 -1 -1 OW -1 -1 -1 -1 -1 -1 151.TIF EAST SHORE NORTH TO N. MANITOU 1922 4 11 -1 -1 OW -1 -1 -1 -1 -1 -1 154.TIF LAKE: EXCEPT FOR STRAITS 1923 3 6 -1 -1 OW -1 -1 -1 -1 -1 -1 155.TIF WEST SHORE 1923 3 13 -1 -1 DI -1 -1 -1 -1 -1 -1 156.TIF EAST SHORE 1923 3 20 -1 -1 FD -1 -1 -1 -1 -1 -1 157.TIF EASTERN SHORE N TO LUDINGTON 1923 3 27 -1 -1 LF -1 -1 -1 -1 -1 -1 158.TIF WEST SHORE 1923 4 3 -1 -1 FD -1 -1 IN -1 -1 -1 -1 159.TIF NORTHEAST PORTION 1923 4 10 -1 -1 LF -1 -1 -1 -1 -1 -1 160.TIF WEST SHORE 1923 4 17 -1 -1 OW -1 -1 -1 -1 -1 -1 161.TIF W & E SHORE: NORTH TO MANISTEE 1923 4 24 -1 -1 OW -1 -1 -1 -1 -1 -1 162.TIF ALL BUT EXTREME NE PORTION 1923 4 24 -1 -1 IP -1 -1 -1 -1 -1 -1 162.TIF EXTREME NE PORTION 1924 3 11 -1 -1 LI -1 -1 -1 -1 -1 -1 164.TIF WEST SHORE 1924 3 11 -1 -1 OW -1 -1 -1 -1 -1 -1 164.TIF EAST SHORE NORTH TO FRANKFORT 1924 3 18 -1 -1 LF -1 -1 DI -1 -1 -1 -1 165.TIF WEST SHORE 1924 3 18 -1 -1 HF -1 -1 -1 -1 -1 -1 165.TIF SOUTHEAST END 1924 3 25 -1 -1 LI -1 -1 -1 -1 -1 -1 166.TIF WEST SHORE 1924 3 25 -1 -1 LI -1 -1 -1 -1 -1 -1 166.TIF E SHORE: N TO SLEEPING BEAR PT 1924 4 1 -1 -1 LI -1 -1 -1 -1 -1 -1 167.TIF WEST SHORE 1924 4 1 -1 -1 LI -1 -1 -1 -1 -1 -1 167.TIF EAST SHORE: NORTH TO NORTHPORT 1924 4 8 -1 -1 OW -1 -1 -1 -1 -1 -1 168.TIF WEST SHORE 1924 4 8 -1 -1 OW -1 -1 -1 -1 -1 -1 168.TIF EAST SHORE: N TO N. MANITOU IS 1924 4 15 -1 -1 OW -1 -1 -1 -1 -1 -1 169.TIF WEST SHORE 1924 4 15 -1 -1 OW -1 -1 -1 -1 -1 -1 169.TIF EAST SHORE: N TO CHARLEVOIX 1924 4 21 -1 -1 OW -1 -1 -1 -1 -1 -1 170.TIF WEST SHORE 1924 4 21 -1 -1 OW -1 -1 -1 -1 -1 -1 170.TIF EAST SHORE: N TO CHARLEVOIX 1925 3 17 -1 -1 OW -1 -1 -1 -1 -1 -1 171.TIF WEST SHORE 1925 3 17 -1 -1 OW -1 -1 -1 -1 -1 -1 171.TIF EAST SHORE: N TO MANISTEE 1925 3 24 -1 -1 OW -1 -1 -1 -1 -1 -1 172.TIF WEST SHORE 1925 3 31 -1 -1 OW -1 -1 -1 -1 -1 -1 173.TIF WEST SHORE 1925 4 7 -1 -1 OW -1 -1 -1 -1 -1 -1 174.TIF WEST SHORE 1925 4 7 -1 -1 OW -1 -1 -1 -1 -1 -1 174.TIF EAST SHORE: N TO NORTHPORT 1925 4 14 -1 -1 OW -1 -1 -1 -1 -1 -1 175.TIF WEST SHORE 1925 4 14 -1 -1 OW -1 -1 -1 -1 -1 -1 175.TIF EAST SHORE: N TO CHARLEVOIX 1926 3 2 -1 -1 FD -1 -1 -1 -1 -1 -1 176.TIF WEST SHORE: S TO MILWAUKEE 1926 3 2 -1 -1 OW -1 -1 -1 -1 -1 -1 176.TIF SOUTH SHORE 1926 3 2 -1 -1 OW -1 -1 -1 -1 -1 -1 176.TIF EAST SHORE: N TO MANISTEE 1926 3 9 -1 -1 FD -1 -1 DI -1 -1 -1 -1 177.TIF WEST & SOUTH SHORES 1926 3 9 -1 -1 LF -1 -1 DI -1 -1 -1 -1 177.TIF EAST SHORE: NORTH TO FRANKFORT 1926 3 16 -1 -1 FD -1 -1 -1 -1 -1 -1 178.TIF WEST SHORE: TO CHICAGO 1926 3 23 -1 -1 FD -1 -1 DC -1 -1 -1 -1 179.TIF WEST SHORE 1926 3 23 -1 -1 FD -1 -1 DI -1 -1 -1 -1 179.TIF EAST SHORE: N TO MANISTEE 1926 3 30 -1 -1 OW -1 -1 -1 -1 -1 -1 180.TIF WEST SHORES 1926 4 6 -1 -1 OW -1 -1 -1 -1 -1 -1 181.TIF WEST SHORE 1926 4 13 -1 -1 OW -1 -1 -1 -1 -1 -1 182.TIF WEST SHORE 1926 4 13 -1 -1 OW -1 -1 -1 -1 -1 -1 182.TIF EAST SHORE: N TO FRANKFORT 1926 4 20 -1 -1 OW -1 -1 -1 -1 -1 -1 183.TIF WEST SHORE 1926 4 27 -1 -1 OW -1 -1 -1 -1 -1 -1 184.TIF WEST SHORE 1926 4 27 -1 -1 OW -1 -1 -1 -1 -1 -1 184.TIF E. SHORE: N TO N. MANITOU ISL. 1927 3 8 -1 -1 LF -1 -1 -1 -1 -1 -1 185.TIF WEST SHORE 1927 3 8 -1 -1 LF -1 -1 -1 -1 -1 -1 185.TIF E SHORE: N TO MANITOU ISLANDS 1927 3 15 -1 -1 OW -1 -1 -1 -1 -1 -1 186.TIF WEST SHORE 1927 3 15 -1 -1 OW -1 -1 -1 -1 -1 -1 186.TIF EAST SHORE: N TO N. MANITOU 1927 3 22 -1 -1 OW -1 -1 -1 -1 -1 -1 187.TIF WEST SHORE 1927 3 22 -1 -1 OW -1 -1 -1 -1 -1 -1 187.TIF EAST SHORE: N TO CHARLEVOIX 1927 3 29 -1 -1 OW -1 -1 -1 -1 -1 -1 188.TIF WEST SHORE 1927 3 29 -1 -1 OW -1 -1 -1 -1 -1 -1 188.TIF EAST SHORE: N TO N. MANITOU 1927 4 5 -1 -1 OW -1 -1 -1 -1 -1 -1 189.TIF LAKE 1928 3 6 -1 -1 LF -1 -1 -1 -1 -1 -1 190.TIF WEST SHORE 1928 3 6 -1 -1 IP -1 -1 -1 -1 -1 -1 190.TIF EAST SHORE: N TO FRANKFURT 1928 3 13 -1 -1 OW -1 -1 -1 -1 -1 -1 191.TIF WEST SHORE 1928 3 20 -1 -1 OW -1 -1 -1 -1 -1 -1 192.TIF WEST SHORE 1928 3 20 -1 -1 LF -1 -1 DI -1 -1 -1 -1 192.TIF EAST SHORE: N TO FRANKFORT 1928 3 27 -1 -1 OW -1 -1 -1 -1 -1 -1 193.TIF WEST SHORE 1928 4 3 -1 -1 OW -1 -1 -1 -1 -1 -1 194.TIF WEST SHORE 1928 4 3 -1 -1 OW -1 -1 -1 -1 -1 -1 194.TIF EAST SHORE: N TO THE MANITOUS 1929 3 5 -1 -1 LI -1 -1 -1 -1 -1 -1 196.TIF WEST & SOUTH SHORES 1929 3 5 -1 -1 FD -1 -1 -1 -1 -1 -1 196.TIF EAST SHORE 1929 3 12 -1 -1 LF -1 -1 DI -1 -1 -1 -1 197.TIF WEST SHORE 1929 3 12 -1 -1 OW -1 -1 -1 -1 -1 -1 197.TIF SOUTH SHORE 1929 3 12 -1 -1 FD -1 -1 DI -1 -1 -1 -1 197.TIF EAST SHORE: N TO FRANKFORT 1929 3 19 -1 -1 LI -1 -1 -1 -1 -1 -1 198.TIF WEST & SOUTH SHORES 1929 3 19 -1 -1 FD -1 -1 DI -1 -1 -1 -1 198.TIF EAST SHORE: N TO FRANKFORT 1929 3 26 -1 -1 OW -1 -1 -1 -1 -1 -1 199.TIF WEST & SOUTH SHORES 1929 3 26 -1 -1 FD -1 -1 DI -1 -1 -1 -1 199.TIF EAST SHORE: N TO FRANKFORT 1929 4 2 -1 -1 OW -1 -1 -1 -1 -1 -1 200.TIF WEST & SOUTH SHORES 1929 4 2 -1 -1 OW -1 -1 -1 -1 -1 -1 200.TIF EAST SHORE: N TO CHARLEVOIX 1929 4 9 -1 -1 OW -1 -1 -1 -1 -1 -1 201.TIF EAST, SOUTH & WEST SHORES 1930 3 4 -1 -1 OW -1 -1 -1 -1 -1 -1 202.TIF WEST SHORE 1930 3 4 -1 -1 OW -1 -1 -1 -1 -1 -1 202.TIF EAST SHORE: N TO FRANKFORT 1930 3 11 -1 -1 OW -1 -1 -1 -1 -1 -1 203.TIF WEST SHORE 1930 3 11 -1 -1 LF -1 -1 DI -1 -1 -1 -1 203.TIF EAST SHORE: N TO LUDINGTON 1930 3 18 -1 -1 OW -1 -1 -1 -1 -1 -1 204.TIF WEST SHORE 1930 3 18 -1 -1 OW -1 -1 -1 -1 -1 -1 204.TIF EAST SHORE: N TO FRANKFORT 1930 3 25 -1 -1 OW -1 -1 -1 -1 -1 -1 205.TIF WEST SHORE 1930 3 25 -1 -1 OW -1 -1 -1 -1 -1 -1 205.TIF EAST SHORE: N TO N. MANITOU 1930 4 1 -1 -1 OW -1 -1 -1 -1 -1 -1 206.TIF WEST SHORE 1930 4 1 -1 -1 OW -1 -1 -1 -1 -1 -1 206.TIF EAST SHORE: N TO N. MANITOU 1930 4 8 -1 -1 OW -1 -1 -1 -1 -1 -1 207.TIF WEST SHORE 1930 4 8 -1 -1 OW -1 -1 -1 -1 -1 -1 207.TIF EAST SHORE: N TO S. MANITOU 1930 4 15 -1 -1 OW -1 -1 -1 -1 -1 -1 208.TIF WEST SHORE 1930 4 15 -1 -1 OW -1 -1 -1 -1 -1 -1 208.TIF EAST SHORE: N TO S. MANITOU 1931 3 3 -1 -1 OW -1 -1 -1 -1 -1 -1 209.TIF WEST SHORE 1931 3 3 -1 -1 OW -1 -1 -1 -1 -1 -1 209.TIF EAST SHORE: N TO CHARLEVOIX 1931 3 10 -1 -1 OW -1 -1 -1 -1 -1 -1 210.TIF WEST SHORE 1931 3 10 -1 -1 OW -1 -1 -1 -1 -1 -1 210.TIF EAST SHORE: N TO CHARLEVOIX 1931 3 17 -1 -1 OW -1 -1 -1 -1 -1 -1 211.TIF WEST SHORE 1931 3 17 -1 -1 OW -1 -1 -1 -1 -1 -1 211.TIF EAST SHORE: N TO CHARLEVOIX 1931 3 24 -1 -1 OW -1 -1 -1 -1 -1 -1 212.TIF WEST SHORE 1931 3 24 -1 -1 OW -1 -1 -1 -1 -1 -1 212.TIF EAST SHORE: N TO CHARLEVOIX 1931 3 31 -1 -1 OW -1 -1 -1 -1 -1 -1 213.TIF WEST SHORE 1931 3 31 -1 -1 OW -1 -1 -1 -1 -1 -1 213.TIF EAST SHORE: N TO CHARLEVOIX 1931 4 7 -1 -1 OW -1 -1 -1 -1 -1 -1 214.TIF WEST SHORE 1931 4 7 -1 -1 OW -1 -1 -1 -1 -1 -1 214.TIF EAST SHORE: N TO CHARLEVOIX 1932 3 8 -1 -1 OW -1 -1 -1 -1 -1 -1 215.TIF WEST SHORE 1932 3 8 -1 -1 OW -1 -1 -1 -1 -1 -1 215.TIF EAST SHORE: N TO STRAITS 1932 3 29 -1 -1 OW -1 -1 -1 -1 -1 -1 525.TIF WEST SHORE 1932 3 29 -1 -1 OW -1 -1 -1 -1 -1 -1 525.TIF EAST SHORE: N TO CHARLEVOIX 1932 4 5 -1 -1 OW -1 -1 -1 -1 -1 -1 218.TIF WEST SHORE 1932 4 5 -1 -1 LI -1 -1 -1 -1 -1 -1 218.TIF EAST SHORE: N TO CHARLEVOIX 1932 4 12 -1 -1 OW -1 -1 -1 -1 -1 -1 219.TIF LAKE 1933 3 7 -1 -1 LI -1 -1 -1 -1 -1 -1 220.TIF LAKE & HARBORS: LOWER 2/3 1933 3 21 -1 -1 OW -1 -1 -1 -1 -1 -1 222.TIF WEST SIDE: LAKE & HARBORS 1933 3 28 -1 -1 IP -1 -1 -1 -1 -1 -1 223.TIF NORTH 1/4 OF LAKE 1933 3 28 -1 -1 IP -1 -1 BV -1 -1 -1 -1 223.TIF UPPER EAST SHORE 1933 4 4 -1 -1 IP -1 -1 -1 -1 -1 -1 224.TIF EXTREME NORTH END OF LAKE 1933 4 11 -1 -1 IP -1 -1 -1 -1 -1 -1 225.TIF EXTREME NORTH END OF LAKE 1933 4 18 -1 -1 OW -1 -1 -1 -1 -1 -1 226.TIF LAKE 1934 3 6 10 -1 -1 -1 -1 -1 -1 -1 228.TIF SOUTH END HARBORS 1934 3 6 -1 -1 IP -1 -1 -1 -1 -1 -1 228.TIF WEST SHORE HARBORS 1934 3 13 -1 -1 LI -1 -1 -1 -1 -1 -1 229.TIF WEST SIDE (INCLUDING HARBORS) 1934 3 20 -1 -1 FD -1 -1 -1 -1 -1 -1 230.TIF EASTERN PORTION 1934 3 20 -1 -1 SO -1 -1 -1 -1 -1 -1 230.TIF BAYS & ISLANDS OF NE PORTION 1934 4 3 -1 -1 LI -1 -1 -1 -1 -1 -1 232.TIF LAKE & HARBORS: SOUTHERN 2/3 1934 4 3 -1 -1 IP -1 -1 SW -1 -1 -1 -1 232.TIF NORTHERN PORTS 1934 4 10 -1 -1 OW -1 -1 -1 -1 -1 -1 233.TIF LAKE & HARBORS: SOUTHERN 2/3 1934 4 17 -1 -1 IP -1 -1 -1 -1 -1 -1 234.TIF NORTHEAST PORTION OF LAKE 1934 4 17 -1 -1 OW -1 -1 -1 -1 -1 -1 234.TIF EXCEPT NE PORTION OF LAKE 1934 4 24 -1 -1 LI -1 -1 -1 -1 -1 -1 235.TIF LAKE & HARBORS 1935 3 5 -1 -1 PI -1 -1 -1 -1 -1 -1 237.TIF EAST SHORE: TO 800YDS OUT 1935 3 12 -1 -1 LI -1 -1 -1 -1 -1 -1 238.TIF HARBORS: SOUTH 4/5 OF LAKE 1935 3 19 -1 -1 LI -1 -1 -1 -1 -1 -1 239.TIF EXCEPT FOR EXTREME NORTH END 1935 4 9 -1 -1 LI -1 -1 -1 -1 -1 -1 242.TIF LAKE & HARBORS 1935 4 16 -1 -1 OW -1 -1 -1 -1 -1 -1 243.TIF 1936 3 10 -1 -1 LI -1 -1 -1 -1 -1 -1 244.TIF WEST SHORE 1936 3 10 -1 -1 IP -1 -1 BV -1 -1 -1 -1 244.TIF NORTHERN PORTION OF EAST SHORE 1936 3 17 -1 -1 LI -1 -1 -1 -1 -1 -1 245.TIF WEST SIDE: LAKE & HARBORS 1936 3 17 -1 -1 FD -1 -1 DI -1 -1 -1 -1 245.TIF EAST SIDE: NORTH TO FRANKFORT 1936 3 23 -1 -1 OW -1 -1 -1 -1 -1 -1 246.TIF WEST SIDE: LAKE & HARBORS 1936 3 23 -1 -1 IP -1 -1 BV -1 -1 -1 -1 246.TIF MOST OF EAST SHORE 1936 3 23 -1 -1 OW -1 -1 -1 -1 -1 -1 246.TIF MAINLAND HARBOR CHANNELS 1936 3 30 -1 -1 IP -1 -1 -1 -1 -1 -1 247.TIF NORTHEAST ISLANDS 1936 3 30 -1 -1 OW -1 -1 -1 -1 -1 -1 247.TIF ALL MAINLAND HARBORS 1936 3 30 -1 -1 LI -1 -1 -1 -1 -1 -1 247.TIF LAKE 1936 4 6 -1 -1 OW -1 -1 -1 -1 -1 -1 248.TIF WEST SIDE OF LAKE 1936 4 6 -1 -1 LF -1 -1 -1 -1 -1 -1 248.TIF EAST SIDE: NORTH TO NORTHPORT 1936 4 6 -1 -1 OW -1 -1 -1 -1 -1 -1 248.TIF MOST MAINLAND HARBORS 1936 4 20 -1 -1 LI -1 -1 -1 -1 -1 -1 250.TIF 1936 4 27 -1 -1 LI -1 -1 -1 -1 -1 -1 251.TIF 1937 3 15 -1 -1 LI -1 -1 -1 -1 -1 -1 255.TIF WEST SIDE: LAKE & HARBORS 1937 3 15 -1 -1 IP -1 -1 -1 -1 -1 -1 255.TIF EAST SHORE 1937 3 22 -1 -1 OW -1 -1 -1 -1 -1 -1 256.TIF LAKE & HARBORS: WEST SIDE 1937 3 22 -1 -1 LI -1 -1 -1 -1 -1 -1 256.TIF EAST SIDE: N TO S. MANITOU ISL 1937 3 22 19 -1 -1 -1 -1 -1 -1 -1 256.TIF HARBORS 1937 3 29 -1 -1 LI -1 -1 -1 -1 -1 -1 257.TIF LAKE & HARBORS: WEST END 1937 3 29 -1 -1 LI -1 -1 -1 -1 -1 -1 257.TIF EAST SHORE: N TO THE ISLANDS 1937 4 5 -1 -1 OW -1 -1 -1 -1 -1 -1 258.TIF MOST HARBORS 1938 3 7 -1 -1 OW -1 -1 -1 -1 -1 -1 261.TIF WEST SHORE: N TO KENOSHA 1938 3 14 -1 -1 IP -1 -1 -1 -1 -1 -1 262.TIF NORTH END 1938 3 14 -1 -1 LI -1 -1 -1 -1 -1 -1 262.TIF SOUTHERN END 1938 3 14 16 27 -1 -1 -1 -1 -1 -1 262.TIF HARBORS 1938 3 21 -1 -1 LI -1 -1 -1 -1 -1 -1 263.TIF EXCEPT NORTH END OF LAKE 1938 4 4 -1 -1 OW -1 -1 -1 -1 -1 -1 265.TIF 1938 4 11 -1 -1 LI -1 -1 -1 -1 -1 -1 266.TIF 1938 4 18 -1 -1 OW -1 -1 -1 -1 -1 -1 267.TIF EXCEPT NEAR STRAITS 1939 3 6 -1 -1 LI -1 -1 -1 -1 -1 -1 268.TIF LAKE: WEST SIDE 1939 3 13 -1 -1 LI -1 -1 -1 -1 -1 -1 269.TIF LAKE & HARBORS: WEST SHORE 1939 3 13 -1 -1 HF -1 -1 DI -1 -1 -1 -1 269.TIF EXTREME NORTH SHORE 1939 3 27 -1 -1 OW -1 -1 -1 -1 -1 -1 271.TIF W SIDE: NORTH TO STURGEON BAY 1939 3 27 -1 -1 FD -1 -1 DI -1 -1 -1 -1 271.TIF E SIDE: SOUTH TO GRAND HAVEN 1939 4 3 -1 -1 IP -1 -1 -1 -1 -1 -1 272.TIF NE PORTION OF LAKE 1939 4 3 -1 -1 SW -1 -1 -1 -1 -1 -1 272.TIF MOST HARBORS 1939 4 10 -1 -1 LI -1 -1 -1 -1 -1 -1 273.TIF EXCEPT NORTHEAST PORTION 1939 4 24 -1 -1 LI -1 -1 -1 -1 -1 -1 275.TIF 1940 3 4 -1 -1 LI -1 -1 -1 -1 -1 -1 277.TIF WEST SHORE: N TO STURGEON BAY 1940 3 11 -1 -1 LI -1 -1 -1 -1 -1 -1 278.TIF 1940 3 11 -1 -1 OW -1 -1 -1 -1 -1 -1 278.TIF MOST HARBORS 1940 3 18 -1 -1 LI -1 -1 -1 -1 -1 -1 279.TIF MANY HARBORS 1940 4 1 -1 -1 IP -1 -1 -1 -1 -1 -1 281.TIF EAST SHORE: TO 4 OR 5Mi OUT 1940 4 1 -1 -1 FD -1 -1 -1 -1 -1 -1 281.TIF WEST SHORE: LAKE 1940 4 8 -1 -1 LI -1 -1 -1 -1 -1 -1 282.TIF LAKE & HARBORS 1940 4 15 -1 -1 LI -1 -1 -1 -1 -1 -1 283.TIF LAKE & HARBORS 1940 4 22 -1 -1 OW -1 -1 -1 -1 -1 -1 284.TIF 1941 3 17 -1 -1 OW -1 -1 -1 -1 -1 -1 287.TIF MOST HARBORS 1941 3 17 -1 -1 LI -1 -1 -1 -1 -1 -1 287.TIF MOST PORTS 1941 3 24 -1 -1 LI -1 -1 -1 -1 -1 -1 288.TIF EXCEPT EXTREME NORTH END 1941 4 7 -1 -1 LI -1 -1 -1 -1 -1 -1 290.TIF LAKE & HARBORS 1941 4 14 -1 -1 LI -1 -1 -1 -1 -1 -1 291.TIF LAKE & HARBORS 1942 3 9 -1 -1 LI -1 -1 -1 -1 -1 -1 292.TIF LAKE 1942 3 9 -1 -1 IP -1 -1 -1 -1 -1 -1 292.TIF EAST COAST SHORE 1942 3 9 -1 -1 OW -1 -1 -1 -1 -1 -1 292.TIF WEST SHORE HARBORS 1942 3 16 -1 -1 LI -1 -1 -1 -1 -1 -1 293.TIF MOST OF LAKE & HARBORS 1942 3 23 -1 -1 OW -1 -1 -1 -1 -1 -1 294.TIF MOST HARBORS 1942 3 23 -1 -1 LI -1 -1 -1 -1 -1 -1 294.TIF LAKE 1942 3 30 -1 -1 OW -1 -1 -1 -1 -1 -1 295.TIF EXCEPT EXTREME NORTH END 1942 4 13 -1 -1 OW -1 -1 -1 -1 -1 -1 297.TIF 1943 3 8 -1 -1 DI -1 -1 -1 -1 -1 -1 299.TIF MOST WEST SIDE STATIONS 1943 3 8 -1 -1 LF -1 -1 -1 -1 -1 -1 299.TIF MIDLAKE 1943 3 15 -1 -1 DI -1 -1 -1 -1 -1 -1 300.TIF MOST WEST SIDE PORTS 1943 3 15 -1 -1 SO -1 -1 -1 -1 -1 -1 300.TIF NE PART OF LAKE 1943 3 15 -1 -1 LF -1 -1 -1 -1 -1 -1 300.TIF MIDLAKE TO MICHIGAN SHORE 1943 3 15 -1 -1 LI -1 -1 -1 -1 -1 -1 300.TIF WEST SHORE HARBORS 1943 3 22 -1 -1 OW -1 -1 -1 -1 -1 -1 301.TIF NEARLY ALL WEST SHORE PORTS 1943 4 5 -1 -1 LI -1 -1 -1 -1 -1 -1 303.TIF WEST SIDE OF LAKE 1943 4 5 -1 -1 OW -1 -1 -1 -1 -1 -1 303.TIF HARBORS: EXCEPT NE PORTION 1943 4 12 -1 -1 LI -1 -1 -1 -1 -1 -1 304.TIF LAKE & HARBORS 1943 4 19 -1 -1 HF -1 -1 -1 -1 -1 -1 305.TIF NORTHEASTERN PART OF LAKE 1943 4 26 -1 -1 LI -1 -1 -1 -1 -1 -1 306.TIF EXCEPT NORTHEAST PORTION 1944 3 6 -1 -1 LI -1 -1 -1 -1 -1 -1 308.TIF NORTH TO FRANKFORT & KEWAUNEE 1944 3 13 -1 -1 SO -1 -1 -1 -1 -1 -1 309.TIF NORTHEAST PORTION 1944 3 13 -1 -1 LF -1 -1 -1 -1 -1 -1 309.TIF EXTREME SOUTH END 1944 3 20 -1 -1 LI -1 -1 -1 -1 -1 -1 310.TIF EXCEPT FOR NORTH END 1944 3 27 -1 -1 LI -1 -1 -1 -1 -1 -1 311.TIF EXCEPT FOR NORTH 1/4 OF LAKE 1944 4 10 -1 -1 OW -1 -1 -1 -1 -1 -1 313.TIF EXCEPT EXTREME NE PORTION 1945 3 19 -1 -1 OW -1 -1 -1 -1 -1 -1 315.TIF WEST SIDE: LAKE & HARBORS 1945 3 26 -1 -1 OW -1 -1 -1 -1 -1 -1 316.TIF EXCEPT EXTREME NORTHEAST AREA 1945 3 26 -1 -1 FD -1 -1 DI -1 -1 -1 -1 316.TIF EXTREME NORTHEAST AREA 1945 4 2 -1 -1 OW -1 -1 -1 -1 -1 -1 317.TIF 1946 3 4 -1 -1 LI -1 -1 -1 -1 -1 -1 318.TIF MOST SOUTHERN HARBORS 1946 3 11 -1 -1 SO -1 -1 -1 -1 -1 -1 319.TIF NORTH END 1946 3 18 -1 -1 FD -1 -1 DI -1 -1 -1 -1 320.TIF NORTH & NORTHEAST END 1946 3 25 -1 -1 OW -1 -1 -1 -1 -1 -1 321.TIF NEARLY ALL HARBORS 1946 3 25 -1 -1 FD -1 -1 DI -1 -1 -1 -1 321.TIF NORTH & NORTHEAST END 1946 3 25 -1 -1 LI -1 -1 -1 -1 -1 -1 321.TIF LAKE: EXCEPT FOR N & NE ENDS 1947 3 3 -1 -1 FD -1 -1 -1 -1 -1 -1 326.TIF TO 6 TO 8Mi OUT IN SE CORNER 1947 3 3 -1 -1 HF -1 -1 -1 -1 -1 -1 326.TIF NORTHERN 1/4 OF LAKE 1947 3 3 -1 -1 LF -1 -1 SW -1 -1 -1 -1 326.TIF EXCEPT NORTHERN 1/4 OF LAKE 1947 3 10 -1 -1 LF -1 -1 -1 -1 -1 -1 327.TIF CENTRAL PORTION OF LAKE 1947 3 10 -1 -1 HF -1 -1 -1 -1 -1 -1 327.TIF NORTHERN END 1947 3 17 -1 -1 HF -1 -1 -1 -1 -1 -1 328.TIF N & NE END 1947 3 17 -1 -1 LI -1 -1 -1 -1 -1 -1 328.TIF CENTRAL & SOUTH PORTIONS 1947 3 24 -1 -1 HF -1 -1 -1 -1 -1 -1 329.TIF NE END 1947 3 31 -1 -1 OW -1 -1 -1 -1 -1 -1 330.TIF W SIDE HARBORS: EXCEPT GREEN B 1947 3 31 -1 -1 OW -1 -1 -1 -1 -1 -1 330.TIF MOST EAST SIDE HARBORS 1947 3 31 -1 -1 LI -1 -1 -1 -1 -1 -1 330.TIF SOUTHERN 3/4 OF LAKE 1947 4 7 -1 -1 FD -1 -1 DI -1 -1 -1 -1 331.TIF NORTH END 1947 4 7 -1 -1 LI -1 -1 OW -1 -1 -1 -1 331.TIF ALL HARBORS 1947 4 14 -1 -1 FD -1 -1 DI -1 -1 -1 -1 332.TIF N & NE END 1947 4 14 -1 -1 LI -1 -1 -1 -1 -1 -1 332.TIF EXCEPT FOR N & NE END 1947 4 14 -1 -1 OW -1 -1 -1 -1 -1 -1 332.TIF ALL HARBORS 1947 4 21 -1 -1 DI -1 -1 -1 -1 -1 -1 333.TIF NORTH END 1948 3 1 -1 -1 HF -1 -1 -1 -1 -1 -1 334.TIF NORTHERN 1/3 OF LAKE 1948 3 8 -1 -1 IP -1 -1 -1 -1 -1 -1 335.TIF NORTHERN 1/2 OF LAKE 1948 3 15 2 6 NI -1 -1 -1 -1 -1 -1 336.TIF SOUTH: SHORE & HARBORS 1948 4 5 -1 -1 OW -1 -1 -1 -1 -1 -1 339.TIF EXCEPT EXTREME NORTH END 1948 4 5 -1 -1 FD -1 -1 DI -1 -1 -1 -1 339.TIF EXTREME NORTH END 1948 4 12 -1 -1 IP -1 -1 -1 -1 -1 -1 340.TIF EAST SHORE: MID & LOWER LAKE 1949 3 7 -1 -1 OW -1 -1 -1 -1 -1 -1 341.TIF SOUTHERN 3/4 OF LAKE 1949 3 14 -1 -1 LI -1 -1 -1 -1 -1 -1 343.TIF SOUTH 1/2 OF LAKE 1949 3 21 -1 -1 IP -1 -1 -1 -1 -1 -1 345.TIF NORTHERN 1/4 OF LAKE 1949 3 28 -1 -1 FD -1 -1 DI -1 -1 -1 -1 347.TIF ISLANDS AREA 1950 3 6 -1 -1 FD -1 -1 -1 -1 -1 -1 350.TIF NORTHERN END 1950 3 13 -1 -1 HF -1 -1 -1 -1 -1 -1 351.TIF NORTHERN END 1950 3 20 -1 -1 FD -1 -1 WI -1 -1 -1 -1 352.TIF NORTHERN ISLAND AREA 1950 3 27 -1 -1 HF -1 -1 -1 -1 -1 -1 353.TIF NORTHERN 1/3 OF LAKE 1950 4 3 -1 -1 IP -1 -1 -1 -1 -1 -1 354.TIF NORTHERN 1/3 OF LAKE 1950 4 3 -1 -1 LI -1 -1 -1 -1 -1 -1 354.TIF MOST HARBORS 1950 4 17 10 20 FD -1 -1 -1 -1 -1 -1 356.TIF NORTHERN END 1950 4 24 18 -1 FD -1 -1 RT -1 -1 -1 -1 357.TIF NORTHERN END 1951 3 19 -1 -1 IP -1 -1 -1 -1 -1 -1 362.TIF NORTH PASSAGE 1951 3 26 2 6 NI -1 -1 -1 -1 -1 -1 363.TIF NORTHERN LAKE 1951 4 2 -1 -1 FD -1 -1 -1 -1 -1 -1 364.TIF NORTH END 1951 4 2 -1 -1 LI -1 -1 -1 -1 -1 -1 364.TIF EXCEPT NORTH END 1951 4 9 -1 -1 DI -1 -1 RT -1 -1 -1 -1 365.TIF NORTH END 1952 3 3 -1 -1 LF -1 -1 DI -1 -1 -1 -1 368.TIF 1952 3 10 -1 -1 LI -1 -1 -1 -1 -1 -1 369.TIF MOST HARBORS 1952 3 17 -1 -1 LI -1 -1 -1 -1 -1 -1 370.TIF MOST HARBORS 1952 3 24 -1 -1 FD -1 -1 -1 -1 -1 -1 371.TIF NORTHERN END 1952 3 31 -1 -1 FD -1 -1 -1 -1 -1 -1 372.TIF NORTHERN END 1952 3 31 -1 -1 OW -1 -1 -1 -1 -1 -1 372.TIF MOST NORTHERN HARBORS 1953 3 2 -1 -1 LI -1 -1 -1 -1 -1 -1 528.TIF EXCEPT EXTREME NORTH END 1953 3 9 -1 -1 OW -1 -1 -1 -1 -1 -1 376.TIF HARBORS: SOUTHERN 2/3 OF LAKE 1953 3 23 -1 -1 LF -1 -1 -1 -1 -1 -1 379.TIF LAKE 1953 3 23 -1 -1 OW -1 -1 -1 -1 -1 -1 379.TIF MOST HARBORS 1954 3 1 -1 -1 OW -1 -1 -1 -1 -1 -1 381.TIF SOUTHERN 2/3 OF LAKE 1954 3 8 1 2 NI -1 -1 -1 -1 -1 -1 382.TIF MOST HARBORS 1954 3 22 -1 -1 OW -1 -1 -1 -1 -1 -1 384.TIF NEARLY ALL HARBORS 1954 3 29 -1 -1 OW -1 -1 -1 -1 -1 -1 385.TIF LAKE & HARBORS 1954 4 5 -1 -1 IP -1 -1 -1 -1 -1 -1 386.TIF ALONG SHORE 1954 4 5 -1 -1 LI -1 -1 -1 -1 -1 -1 386.TIF LAKE & MOST HARBORS 1955 3 14 -1 -1 OW -1 -1 -1 -1 -1 -1 393.TIF MOST HARBORS 1955 3 21 -1 -1 OW -1 -1 -1 -1 -1 -1 394.TIF EXCEPT EXTREME NORTH END 1955 3 28 4 -1 NI -1 -1 -1 -1 -1 -1 395.TIF EXTREME NORTH END 1955 3 28 -1 -1 FD -1 -1 -1 -1 -1 -1 395.TIF (80% ICE COVER) 1955 4 11 -1 -1 OW -1 -1 -1 -1 -1 -1 396.TIF 1956 3 5 -1 -1 FD -1 -1 DI -1 -1 -1 -1 399.TIF NORTH 1/3 OF LAKE 1956 3 5 -1 -1 OW -1 -1 -1 -1 -1 -1 399.TIF W SHORE HARBORS: S OF KEWAUNEE 1956 3 26 -1 -1 OW -1 -1 -1 -1 -1 -1 403.TIF EXCEPT EXTREME NORTH END 1956 4 2 -1 -1 HF -1 -1 WI -1 -1 -1 -1 404.TIF NORTH END 1956 4 9 -1 -1 LF -1 -1 RT -1 -1 -1 -1 405.TIF EXTREME NORTH END 1957 3 25 -1 -1 OW -1 -1 -1 -1 -1 -1 413.TIF LAKE 1958 2 24 18 24 SO -1 -1 -1 -1 -1 -1 416.TIF DEATH DOOR PASSAGE 1958 3 24 -1 -1 LI -1 -1 -1 -1 -1 -1 420.TIF SOUTH OF ISLAND AREA 1958 3 31 -1 -1 LI -1 -1 -1 -1 -1 -1 421.TIF HARBORS (EXCEPT IN STRAITS) 1958 4 7 -1 -1 LI -1 -1 -1 -1 -1 -1 422.TIF 1959 4 20 -1 -1 LI -1 -1 -1 -1 -1 -1 432.TIF HARBORS 1960 4 4 -1 -1 LI -1 -1 -1 -1 -1 -1 438.TIF EXCEPT EXREME NORTH END 1960 4 11 -1 -1 LI -1 -1 -1 -1 -1 -1 439.TIF 1961 3 13 -1 -1 LI -1 -1 -1 -1 -1 -1 442.TIF SOUTHERN PORTION 1961 3 20 -1 -1 OW -1 -1 -1 -1 -1 -1 443.TIF MOST HARBORS 1961 4 3 -1 -1 LI -1 -1 -1 -1 -1 -1 445.TIF 1962 3 5 -1 -1 OW -1 -1 -1 -1 -1 -1 448.TIF MIDLAKE 1962 3 5 -1 -1 IP -1 -1 -1 -1 -1 -1 448.TIF W SHORE: TO 15Mi OUT 1962 3 5 -1 -1 FD -1 -1 DI -1 -1 -1 -1 448.TIF SOUTHERN 1/2 OF LAKE 1962 3 5 -1 -1 OW -1 -1 -1 -1 -1 -1 448.TIF LITTLE SABLE TO POINT BETSIE 1962 3 5 -1 -1 FD -1 -1 BI -1 -1 -1 -1 448.TIF W OF PT. BETSIE TO N. MANITOU 1962 3 12 -1 -1 FS -1 -1 WI -1 -1 -1 -1 449.TIF S END: BELOW GROSSE POINT 1962 4 16 -1 -1 LI -1 -1 -1 -1 -1 -1 454.TIF ALL HARBORS 1963 2 25 -1 -1 HF -1 -1 WI -1 -1 -1 -1 456.TIF (90% ICE COVER) 1963 3 18 14 20 WI -1 -1 -1 -1 -1 -1 459.TIF N HALF (90% ICE COVER) 1963 3 18 -1 -1 DI -1 -1 WI -1 -1 -1 -1 459.TIF S HALF 1963 3 25 -1 -1 HF -1 -1 WI -1 -1 -1 -1 460.TIF E OF NORTH END ISLANDS 1964 2 24 -1 -1 FD -1 -1 DI -1 -1 -1 -1 465.TIF N END 1964 2 24 -1 -1 LF -1 -1 DI -1 -1 -1 -1 465.TIF S END 1964 3 2 -1 -1 LF -1 -1 DI -1 -1 -1 -1 466.TIF S END 1964 3 9 -1 -1 FD -1 -1 DI -1 -1 -1 -1 467.TIF N END 1964 3 23 -1 -1 DI -1 -1 -1 -1 -1 -1 469.TIF NE END 1964 3 30 -1 -1 DI -1 -1 -1 -1 -1 -1 470.TIF NE END 1964 3 30 -1 -1 OW -1 -1 -1 -1 -1 -1 470.TIF EXCEPT FOR NE END 1964 4 6 -1 -1 DI -1 -1 PN -1 -1 WI -1 -1 471.TIF NE END 1964 4 13 -1 -1 LI -1 -1 -1 -1 -1 -1 472.TIF 1965 2 23 -1 -1 SO -1 -1 -1 -1 -1 -1 473.TIF EXTREME N END 1965 2 23 7 24 -1 -1 -1 -1 -1 -1 473.TIF MOST HARBORS 1965 2 23 -1 -1 LI -1 -1 -1 -1 -1 -1 473.TIF S END HARBORS 1965 3 1 24 -1 FD -1 -1 SO -1 -1 -1 -1 474.TIF N SECTIONS 1965 3 1 10 12 PN -1 -1 DI -1 -1 -1 -1 474.TIF CENTRAL SECTIONS 1965 3 1 1 4 DI -1 -1 -1 -1 -1 -1 474.TIF S SECTIONS 1965 3 8 -1 -1 FD -1 -1 DI -1 -1 CL -1 -1 475.TIF UPPER LAKE 1965 3 8 -1 -1 LF -1 -1 -1 -1 -1 -1 475.TIF CENTRAL & SOUTHERN PORTIONS 1965 3 15 -1 -1 LI -1 -1 -1 -1 -1 -1 476.TIF S HALF 1965 3 15 -1 -1 IP -1 -1 SW -1 -1 -1 -1 476.TIF N HALF (40% ICE COVER) 1965 3 22 -1 -1 HF -1 -1 -1 -1 -1 -1 477.TIF EXTREME NORTH PORTION 1965 3 22 -1 -1 OW -1 -1 -1 -1 -1 -1 477.TIF SOUTHERN PORTION 1965 3 29 -1 -1 HF -1 -1 -1 -1 -1 -1 478.TIF N END 1965 4 5 20 36 -1 -1 -1 -1 -1 -1 479.TIF S SECTIONS 1965 4 5 20 -1 SO -1 -1 -1 -1 -1 -1 479.TIF N SECTIONS 1965 4 12 -1 -1 LF -1 -1 DI -1 -1 PN -1 -1 480.TIF S END 1965 4 12 -1 -1 SO -1 -1 -1 -1 -1 -1 480.TIF N END 1965 4 19 -1 -1 DI -1 -1 -1 -1 -1 -1 481.TIF N END 1966 3 14 -1 -1 OW -1 -1 -1 -1 -1 -1 485.TIF E & W SHORES 1966 4 4 -1 -1 OW -1 -1 -1 -1 -1 -1 488.TIF 1967 2 27 14 24 -1 -1 -1 -1 -1 -1 489.TIF N HARBORS 1967 2 27 0 20 -1 -1 -1 -1 -1 -1 489.TIF S HARBORS 1967 2 27 -1 -1 LF -1 -1 -1 -1 -1 -1 489.TIF SOUTH & CENTRAL PORTIONS 1967 3 6 -1 -1 BI -1 -1 -1 -1 -1 -1 490.TIF SW PORTION 1967 3 13 -1 -1 RT -1 -1 -1 -1 -1 -1 491.TIF S PORTION 1967 3 20 -1 -1 DI -1 -1 BI -1 -1 -1 -1 492.TIF SE SHORE 1967 4 3 -1 -1 OW -1 -1 -1 -1 -1 -1 494.TIF ALL SOUTHERN HARBORS 1967 4 3 -1 -1 RT -1 -1 DI -1 -1 -1 -1 494.TIF N OF SUMNER ISLAND (50% ICE) 1967 4 3 -1 -1 OW -1 -1 -1 -1 -1 -1 494.TIF S OF SUMNER ISLAND 1967 4 10 -1 -1 OW -1 -1 -1 -1 -1 -1 495.TIF ALL HARBORS 1967 4 17 -1 -1 OW -1 -1 -1 -1 -1 -1 496.TIF 1968 2 26 -1 -1 SI -1 -1 -1 -1 -1 -1 521.TIF N HALF 1968 3 4 -1 -1 FS -1 -1 -1 -1 -1 -1 520.TIF E OF ISLANDS 1968 3 4 -1 -1 DI -1 -1 SI -1 -1 WI -1 -1 520.TIF 1968 3 11 -1 -1 FS -1 -1 -1 -1 -1 -1 497.TIF E OF ISLANDS 1968 3 18 -1 -1 WI -1 36 RT -1 -1 -1 -1 498.TIF OFF SE SHORE 1968 3 25 -1 -1 RT -1 -1 DI -1 -1 NI -1 -1 499.TIF AROUND ISLANDS 1968 4 8 -1 -1 OW -1 -1 -1 -1 -1 -1 501.TIF ALL HARBORS 1968 4 8 -1 -1 RT -1 -1 -1 -1 -1 -1 501.TIF N BAYS 1968 4 8 -1 -1 OW -1 -1 -1 -1 -1 -1 501.TIF ALL CHANNELS 1969 3 24 -1 -1 IP -1 -1 -1 -1 -1 -1 507.TIF N PORTIONS: BAYS & SHORE 1969 3 31 -1 -1 LI -1 -1 -1 -1 -1 -1 508.TIF 1970 3 17 -1 -1 PI -1 -1 -1 -1 -1 -1 512.TIF S PORTIONS 1970 3 17 -1 -1 IP -1 -1 WI -1 -1 -1 -1 512.TIF E SHORE 1970 3 24 -1 -1 DI -1 -1 -1 -1 -1 -1 513.TIF E OF ISLANDS 1970 3 31 -1 -1 OW -1 -1 -1 -1 -1 -1 514.TIF S HALF 1970 4 7 -1 -1 DI -1 -1 -1 -1 -1 -1 515.TIF W END OF STRAITS 1970 4 21 -1 -1 LI -1 -1 -1 -1 -1 -1 517.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.