GREAT LAKES ENVIRONMENTAL RESEARCH LABORATORY, NOAA Climate Data Modernization Project National Weather Service Historical Great Lakes Ice Reports for Winters 1899 - 1970 Site No. 038, Approximate Location: 46.87 N. Latitude, 89.31 W. Longitude Site Name Ontonagon on Lake Superior ---------------------------------------------------------------------------------------------------------- Year Mo Da T1 T2 C1 T1C1 T2C1 C2 T1C2 T2C2 C3 T1C3 T2C3 IMAGE Supplemental Information ---------------------------------------------------------------------------------------------------------- 1901 4 1 -1 -1 OW -1 -1 -1 -1 -1 -1 015.TIF 1901 4 8 -1 -1 RT -1 -1 SW -1 -1 -1 -1 016.TIF 1901 4 15 -1 -1 OW -1 -1 -1 -1 -1 -1 017.TIF 1903 3 3 24 -1 -1 -1 -1 -1 -1 -1 024.TIF ABOVE BRIDGE 1903 3 3 -1 -1 BK -1 -1 -1 -1 -1 -1 024.TIF LAKE 1905 4 4 -1 -1 BK -1 -1 -1 -1 -1 -1 043.TIF LAKE 1907 3 12 -1 -1 FD -1 -1 -1 -1 -1 -1 052.TIF 1907 3 26 -1 -1 IP -1 -1 -1 -1 -1 -1 054.TIF LAKE 1907 4 2 -1 -1 FD -1 -1 BK -1 -1 -1 -1 055.TIF TO 3Mi OUT 1908 3 17 -1 -1 FD -1 -1 -1 -1 -1 -1 059.TIF LAKE 1908 4 14 -1 -1 OW -1 -1 -1 -1 -1 -1 062.TIF LAKE 1909 3 23 -1 -1 FD -1 -1 -1 -1 -1 -1 067.TIF LAKE 1909 4 13 -1 -1 OW -1 -1 -1 -1 -1 -1 070.TIF TO 3Mi OUT 1909 4 13 -1 -1 FD -1 -1 -1 -1 -1 -1 070.TIF BEYOND 3Mi OUT 1911 3 21 -1 -1 FD -1 -1 BK -1 -1 -1 -1 079.TIF 1911 3 28 -1 -1 OW -1 -1 -1 -1 -1 -1 080.TIF LAKE 1912 3 19 -1 -1 OW -1 -1 -1 -1 -1 -1 084.TIF ABOUT 10Mi OUT 1912 3 26 -1 -1 IP -1 -1 -1 -1 -1 -1 085.TIF LAKE 1912 4 2 -1 -1 FD -1 -1 -1 -1 -1 -1 086.TIF LAKE 1912 4 16 -1 -1 OW -1 -1 -1 -1 -1 -1 088.TIF LAKE 1912 4 23 -1 -1 OW -1 -1 -1 -1 -1 -1 089.TIF 1913 3 25 -1 -1 FD -1 -1 BK -1 -1 -1 -1 093.TIF LAKE 1913 4 1 -1 -1 FD -1 -1 -1 -1 -1 -1 094.TIF TO 2Mi OUT 1913 4 1 -1 -1 OW -1 -1 -1 -1 -1 -1 094.TIF BEYOND 2Mi OUT 1913 4 8 -1 -1 FD -1 -1 -1 -1 -1 -1 095.TIF LAKE 1913 4 22 -1 -1 OW -1 -1 -1 -1 -1 -1 097.TIF RIVER 1913 4 22 -1 -1 PI -1 -1 -1 -1 -1 -1 097.TIF LAKE 1914 3 3 -1 -1 FD -1 -1 -1 -1 -1 -1 098.TIF TO 1Mi OUT 1914 3 10 -1 -1 BK -1 -1 -1 -1 -1 -1 099.TIF LAKE 1914 3 17 -1 -1 FD -1 -1 -1 -1 -1 -1 100.TIF LAKE 1914 4 7 -1 -1 IP -1 -1 -1 -1 -1 -1 103.TIF TO 1/2Mi OUT 1914 4 7 -1 -1 OW -1 -1 -1 -1 -1 -1 103.TIF BEYOND 1/2Mi OUT 1914 4 21 -1 -1 FD -1 -1 -1 -1 -1 -1 105.TIF LAKE 1915 3 9 -1 -1 FD -1 -1 BK -1 -1 -1 -1 106.TIF 1915 3 23 -1 -1 FD -1 -1 -1 -1 -1 -1 108.TIF TO 4Mi OUT 1915 3 23 -1 -1 OW -1 -1 -1 -1 -1 -1 108.TIF BEYOND 4Mi OUT 1915 3 30 -1 -1 FD -1 -1 LI -1 -1 -1 -1 109.TIF LAKE 1915 4 6 -1 -1 FD -1 -1 -1 -1 -1 -1 110.TIF TO 6Mi OUT 1915 4 13 -1 -1 DI -1 -1 -1 -1 -1 -1 111.TIF TO 2Mi OUT 1915 4 20 -1 -1 FD -1 -1 -1 -1 -1 -1 112.TIF LAKE 1922 3 28 -1 -1 LF -1 -1 -1 -1 -1 -1 152.TIF 1923 3 13 -1 -1 FD -1 -1 -1 -1 -1 -1 156.TIF EASTWARD TO BEYOND EAGLE H. 1923 4 17 -1 -1 FD -1 -1 -1 -1 -1 -1 161.TIF 1924 3 11 -1 -1 OW -1 -1 -1 -1 -1 -1 164.TIF 1924 3 18 -1 -1 FD -1 -1 -1 -1 -1 -1 165.TIF 1924 3 25 -1 -1 FD -1 -1 -1 -1 -1 -1 166.TIF 1926 3 2 -1 -1 FD -1 -1 DI -1 -1 -1 -1 176.TIF 1926 3 9 -1 -1 FD -1 -1 -1 -1 -1 -1 177.TIF 1926 4 6 -1 -1 FD -1 -1 -1 -1 -1 -1 181.TIF EASTWARD AROUND KEWEENAW PT. 1926 4 13 -1 -1 FD -1 -1 DI -1 -1 -1 -1 182.TIF EASTWARD AROUND KEWEENAW PT. 1926 4 20 -1 -1 FD -1 -1 DI -1 -1 -1 -1 183.TIF 1926 4 27 -1 -1 FD -1 -1 -1 -1 -1 -1 184.TIF TO PORTAGE CANAL 1927 3 8 -1 -1 FD -1 -1 -1 -1 -1 -1 185.TIF 1927 3 15 -1 -1 LF -1 -1 DI -1 -1 -1 -1 186.TIF 1928 3 6 -1 -1 FD -1 -1 -1 -1 -1 -1 190.TIF NE TO BEYOND EAGLE HARBOR 1928 3 13 -1 -1 FD -1 -1 -1 -1 -1 -1 191.TIF EASTWARD: TO 4Mi OUT 1928 3 13 -1 -1 OW -1 -1 -1 -1 -1 -1 191.TIF BEYOND 4Mi OUT TO THE EAST 1928 3 20 -1 -1 FD -1 -1 BV -1 -1 DI -1 -1 192.TIF NE TO BEYOND EAGLE HARBOR 1928 3 27 -1 -1 FD -1 -1 BV -1 -1 DI -1 -1 193.TIF NE TO BEYOND EAGLE HARBOR 1928 4 3 -1 -1 FD -1 -1 BV -1 -1 -1 -1 194.TIF NE TO BEYOND EAGLE HARBOR 1928 4 10 -1 -1 FD -1 -1 DI -1 -1 -1 -1 195.TIF NE TO BEYOND EAGLE HARBOR 1930 3 4 -1 -1 FD -1 -1 DI -1 -1 -1 -1 202.TIF EASTWARD AROUND KEWEENAW PT. 1930 3 25 -1 -1 FD -1 -1 BV -1 -1 WI -1 -1 205.TIF EASTWARD AROUND KEWEENAW PT. 1931 3 10 -1 -1 LF -1 -1 -1 -1 -1 -1 210.TIF 1932 3 15 -1 -1 FD -1 -1 -1 -1 -1 -1 216.TIF 1932 3 22 -1 -1 FD -1 -1 BV -1 -1 -1 -1 217.TIF 1932 3 29 -1 -1 FD -1 -1 BV -1 -1 -1 -1 525.TIF 1932 4 5 -1 -1 FD -1 -1 BK -1 -1 -1 -1 218.TIF 1932 4 12 -1 -1 LF -1 -1 BK -1 -1 -1 -1 219.TIF 1933 3 14 -1 -1 FD -1 -1 DI -1 -1 -1 -1 221.TIF 1933 3 21 -1 -1 IP -1 -1 BV -1 -1 -1 -1 222.TIF 1933 4 4 -1 -1 OW -1 -1 -1 -1 -1 -1 224.TIF 1934 3 6 -1 -1 IP -1 -1 -1 -1 -1 -1 228.TIF TO 1Mi OR LESS OUT 1934 4 3 -1 -1 OW -1 -1 -1 -1 -1 -1 232.TIF TO ISLE ROYALE 1934 4 24 -1 -1 DI -1 -1 SW -1 -1 -1 -1 235.TIF TO MARQUETTE 1934 5 1 -1 -1 IP -1 -1 BV -1 -1 -1 -1 236.TIF 1935 3 12 -1 -1 FD -1 -1 BV -1 -1 -1 -1 238.TIF 1935 3 19 -1 -1 FD -1 -1 BV -1 -1 -1 -1 239.TIF LAKE 1935 4 16 -1 -1 OW -1 -1 -1 -1 -1 -1 243.TIF 1936 4 27 -1 -1 IP -1 -1 BV -1 -1 -1 -1 251.TIF 1938 3 7 -1 -1 SW -1 -1 -1 -1 -1 -1 261.TIF 1938 3 21 -1 -1 OW -1 -1 -1 -1 -1 -1 263.TIF 1938 3 28 -1 -1 FD -1 -1 DI -1 -1 -1 -1 264.TIF 1938 4 11 -1 -1 LF -1 -1 -1 -1 -1 -1 266.TIF 1939 3 20 -1 -1 DI -1 -1 BV -1 -1 -1 -1 270.TIF 1939 3 27 -1 -1 DI -1 -1 SL -1 -1 WI -1 -1 271.TIF 1939 4 24 -1 -1 OW -1 -1 BV -1 -1 -1 -1 275.TIF LAKE 1940 3 11 -1 -1 LF -1 -1 DI -1 -1 -1 -1 278.TIF 1940 3 18 -1 -1 LI -1 -1 -1 -1 -1 -1 279.TIF 1940 3 24 -1 -1 OW -1 -1 -1 -1 -1 -1 280.TIF LAKE 1940 4 1 -1 -1 OW -1 -1 BV -1 -1 -1 -1 281.TIF 1940 4 8 -1 -1 OW -1 -1 BV -1 -1 -1 -1 282.TIF 1941 3 10 -1 -1 IP -1 -1 BV -1 -1 SW -1 -1 286.TIF 1941 3 17 -1 -1 IP -1 -1 BV -1 -1 SW -1 -1 287.TIF 1941 3 24 -1 -1 IP -1 -1 BV -1 -1 -1 -1 288.TIF 1941 3 31 -1 -1 IP -1 -1 BV -1 -1 -1 -1 289.TIF 1942 3 16 -1 -1 FD -1 -1 BV -1 -1 -1 -1 293.TIF 1942 3 30 -1 -1 OW -1 -1 -1 -1 -1 -1 295.TIF 1942 4 6 -1 -1 OW -1 -1 -1 -1 -1 -1 296.TIF 1943 3 22 -1 -1 IP -1 -1 BV -1 -1 SW -1 -1 301.TIF 1943 4 12 -1 -1 FD -1 -1 DI -1 -1 SW -1 -1 304.TIF LAKE 1943 4 19 -1 -1 OW -1 -1 -1 -1 -1 -1 305.TIF 1944 3 6 -1 -1 IP -1 -1 -1 -1 -1 -1 308.TIF TO 2 TO 3Mi OUT 1944 3 13 -1 -1 FD -1 -1 BV -1 -1 -1 -1 309.TIF 1944 3 20 -1 -1 IP -1 -1 BV -1 -1 -1 -1 310.TIF 1944 3 27 -1 -1 LF -1 -1 -1 -1 -1 -1 311.TIF LAKE 1944 4 3 -1 -1 OW -1 -1 -1 -1 -1 -1 312.TIF EXCEPT ALONG SHORE 1944 4 10 -1 -1 FD -1 -1 BV -1 -1 -1 -1 313.TIF LAKE 1944 4 17 -1 -1 FD -1 -1 BV -1 -1 -1 -1 314.TIF 1945 3 19 -1 -1 FD -1 -1 DI -1 -1 -1 -1 315.TIF 1945 3 26 -1 -1 FD -1 -1 DI -1 -1 -1 -1 316.TIF 1946 3 4 13 -1 SO -1 -1 -1 -1 -1 -1 318.TIF 1946 3 4 -1 -1 WI -1 -1 BV -1 -1 -1 -1 318.TIF LAKE 1946 3 18 -1 -1 FD -1 -1 DI -1 -1 BV -1 -1 320.TIF TO EAGLE HARBOR 1948 3 8 24 -1 -1 -1 -1 -1 -1 -1 335.TIF 1948 3 8 -1 -1 LF -1 -1 SW -1 -1 BV -1 -1 335.TIF LAKE 1948 3 15 -1 -1 IJ -1 -1 -1 -1 -1 -1 336.TIF RIVER 1948 3 15 -1 -1 IP -1 -1 BV -1 -1 -1 -1 336.TIF LAKE 1948 3 22 -1 -1 IJ -1 -1 -1 -1 -1 -1 337.TIF RIVER 1948 3 22 -1 -1 OW -1 -1 -1 -1 -1 -1 337.TIF LAKE 1948 3 29 -1 -1 OW -1 -1 -1 -1 -1 -1 338.TIF LAKE 1948 4 5 -1 -1 IJ -1 -1 DI -1 -1 -1 -1 339.TIF RIVER: TO 1/8Mi OUT INTO LAKE 1948 4 5 -1 -1 OW -1 -1 -1 -1 -1 -1 339.TIF BEYOND 1/8Mi OUT 1949 3 7 -1 -1 IJ -1 -1 -1 -1 -1 -1 341.TIF RIVER: PIERHEAD LIGHT 1949 3 7 -1 -1 OW -1 -1 -1 -1 -1 -1 341.TIF LAKE: WEST OF PIER LIGHT 1949 3 14 -1 -1 FD -1 -1 BV -1 -1 -1 -1 343.TIF LAKE 1949 3 28 -1 -1 OW -1 -1 -1 -1 -1 -1 347.TIF LAKE 1950 3 6 12 -1 IP -1 -1 BV -1 -1 -1 -1 350.TIF 1950 3 20 -1 -1 IP -1 -1 WI -1 -1 BV -1 -1 352.TIF LAKE 1950 4 3 -1 -1 OW -1 -1 BV -1 -1 DI -1 -1 354.TIF BEYOND 1/2Mi OUT 1950 4 3 -1 -1 IJ -1 -1 -1 -1 -1 -1 354.TIF RIVER MOUTH 1950 4 10 -1 -1 FD -1 -1 BV -1 -1 -1 -1 355.TIF BEYOND 1/4Mi OUT 1950 4 17 -1 -1 OW -1 -1 -1 -1 -1 -1 356.TIF LAKE 1950 4 24 -1 -1 FD -1 -1 WI -1 -1 PI -1 -1 357.TIF TO MICHIGAN ISLAND 1950 4 24 -1 -1 DI -1 -1 BV -1 -1 -1 -1 357.TIF LAKE: FROM PIERHEAD LIGHT 1951 3 19 -1 -1 WI -1 -1 BV -1 -1 -1 -1 362.TIF LAKE 1951 3 26 -1 -1 IP -1 -1 BV -1 -1 WI -1 -1 363.TIF LAKE 1951 4 2 -1 -1 IP -1 -1 BV -1 -1 -1 -1 364.TIF LAKE 1951 4 9 -1 -1 IP -1 -1 BV -1 -1 -1 -1 365.TIF LAKE 1951 4 16 -1 -1 IP -1 -1 BV -1 -1 -1 -1 366.TIF LAKE 1952 3 3 -1 -1 OW -1 -1 -1 -1 -1 -1 368.TIF LAKE 1952 3 10 -1 -1 IJ -1 -1 -1 -1 -1 -1 369.TIF RIVER MOUTH 1952 3 10 -1 -1 OW -1 -1 -1 -1 -1 -1 369.TIF LAKE 1952 3 17 -1 -1 OW -1 -1 -1 -1 -1 -1 370.TIF LAKE 1952 3 24 -1 -1 LF -1 -1 -1 -1 -1 -1 371.TIF LAKE 1952 3 31 -1 -1 LF -1 -1 -1 -1 -1 -1 372.TIF LAKE 1952 4 7 -1 -1 OW -1 -1 -1 -1 -1 -1 373.TIF LAKE 1953 3 2 -1 -1 OW -1 -1 -1 -1 -1 -1 528.TIF BEYOND 1/2Mi OUT 1953 3 9 -1 -1 IP -1 -1 WI -1 -1 BV -1 -1 376.TIF LAKE 1954 3 1 -1 -1 OW -1 -1 -1 -1 -1 -1 381.TIF LAKE 1954 3 8 -1 -1 OW -1 -1 -1 -1 -1 -1 382.TIF LAKE 1954 3 22 -1 -1 OW -1 -1 -1 -1 -1 -1 384.TIF LAKE 1954 3 29 -1 -1 OW -1 -1 -1 -1 -1 -1 385.TIF LAKE 1954 4 5 -1 -1 OW -1 -1 -1 -1 -1 -1 386.TIF BEYOND 2Mi OUT 1954 4 12 -1 -1 OW -1 -1 -1 -1 -1 -1 387.TIF LAKE 1955 3 7 -1 -1 LI -1 -1 -1 -1 -1 -1 391.TIF LAKE 1955 3 14 -1 -1 FD -1 -1 BV -1 -1 -1 -1 393.TIF LAKE 1955 3 28 -1 -1 WI -1 -1 BV -1 -1 -1 -1 395.TIF LAKE 1956 2 27 -1 -1 FD -1 -1 DI -1 -1 -1 -1 397.TIF LAKE 1956 3 12 -1 -1 FD -1 -1 BV -1 -1 -1 -1 401.TIF LAKE 1956 3 19 -1 -1 FD -1 -1 BV -1 -1 -1 -1 402.TIF BEYOND 1/2Mi OUT 1956 4 9 -1 -1 IJ -1 -1 -1 -1 -1 -1 405.TIF LOWER END OF ROCK CUT 1956 4 16 -1 -1 OW -1 -1 -1 -1 -1 -1 406.TIF LAKE 1957 3 4 -1 -1 IP -1 -1 WI -1 -1 BV -1 -1 409.TIF LAKE 1957 3 11 -1 -1 IP -1 -1 WI -1 -1 BV -1 -1 411.TIF LAKE 1957 4 1 -1 -1 WI -1 -1 -1 -1 -1 -1 414.TIF LAKE 1958 3 3 -1 -1 BK -1 -1 SW -1 -1 -1 -1 417.TIF 200FT FROM PIERHEAD 1958 3 10 -1 -1 IP -1 -1 SW -1 -1 -1 -1 418.TIF TO 2Mi OUT 1958 3 17 -1 -1 LF -1 -1 -1 -1 -1 -1 419.TIF LAKE 1958 3 24 -1 -1 IP -1 -1 -1 -1 -1 -1 420.TIF TO 1/4Mi OUT 1958 3 24 -1 -1 OW -1 -1 -1 -1 -1 -1 420.TIF BEYOND 1/4Mi OUT 1959 3 2 18 -1 SC -1 -1 -1 -1 -1 -1 424.TIF LAKE 1959 3 16 -1 -1 IP -1 -1 BV -1 -1 -1 -1 426.TIF LAKE 1959 4 6 -1 -1 IP -1 -1 -1 -1 -1 -1 430.TIF TO 1Mi OUT 1959 4 6 -1 -1 OW -1 -1 -1 -1 -1 -1 430.TIF 1 TO 2Mi OUT 1959 4 6 -1 -1 FD -1 -1 -1 -1 -1 -1 430.TIF BEYOND 2Mi OUT 1959 4 13 -1 -1 IP -1 -1 BV -1 -1 -1 -1 431.TIF LAKE 1960 2 19 -1 -1 IP -1 -1 -1 -1 -1 -1 523.TIF TO 1Mi OUT FROM END OF BW 1960 3 21 -1 -1 OW -1 -1 -1 -1 -1 -1 436.TIF 2Mi OUT 1960 4 4 -1 -1 FD -1 -1 DI -1 -1 -1 -1 438.TIF LAKE 1960 4 11 -1 -1 IP -1 -1 -1 -1 -1 -1 439.TIF PIERHEAD: TO 3/4Mi OUT 1960 4 11 -1 -1 OW -1 -1 -1 -1 -1 -1 439.TIF BEYOND 3/4Mi OUT 1961 3 20 -1 -1 BK -1 -1 -1 -1 -1 -1 443.TIF CHANNEL: TO END OF BW (CUT) 1961 3 20 -1 -1 IP -1 -1 -1 -1 -1 -1 443.TIF TO 1Mi OUT FROM PIERHEAD 1961 3 20 -1 -1 OW -1 -1 -1 -1 -1 -1 443.TIF BEYOND 1Mi OUT FROM PIERHEAD 1961 3 27 -1 -1 DI -1 -1 -1 -1 -1 -1 444.TIF LAKE 1961 4 10 -1 -1 DI -1 -1 -1 -1 -1 -1 446.TIF LAKE 1962 3 12 -1 -1 DI -1 -1 -1 -1 -1 -1 449.TIF ABOUT 3Mi OUT 1962 3 12 -1 -1 FS -1 -1 -1 -1 -1 -1 449.TIF STATE BRIDGE TO PIERHEAD 1962 3 19 -1 -1 BK -1 -1 -1 -1 -1 -1 450.TIF CHANNEL: TO OUTER END OF BW 1962 4 9 -1 -1 FD -1 -1 BV -1 -1 -1 -1 453.TIF LAKE 1962 4 16 -1 -1 DI -1 -1 BV -1 -1 -1 -1 454.TIF LAKE 1962 4 23 -1 -1 IP -1 -1 BV -1 -1 -1 -1 455.TIF LAKE ---------------------------------------------------------------------------------------------------------- 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.