The Edmund Fitzgerald sunk in Lake Superior 47 years ago today

Gordon Lightfoot immortalized the wreck in a song that attributes it to the gales of November come early.
What are the gales of November? And did they come early that night in '75?

SS Edmund Fitzgerald was an American Great Lakes freighter that sank in Lake Superior during a storm on November 10, 1975, with the loss of the entire crew of 29 men. When launched on June 7, 1958, she was the largest ship on North America's Great Lakes, and she remains the largest to have sunk there. She was located in deep water on November 14, 1975, by a U.S. Navy aircraft detecting magnetic anomalies, and found soon afterwards to be in two large pieces.

For 17 years, Edmund Fitzgerald carried taconite iron ore from mines near Duluth, Minnesota, to iron works in Detroit, Toledo, and other Great Lakes ports. As a workhorse, she set seasonal haul records six times, often breaking her own record. Captain Peter Pulcer was known for piping music day or night over the ship's intercom while passing through the St. Clair and Detroit rivers (between lakes Huron and Erie), and entertaining spectators at the Soo Locks (between Lakes Superior and Huron) with a running commentary about the ship. Her size, record-breaking performance, and "DJ captain" endeared Edmund Fitzgerald to boat watchers.

Carrying a full cargo of ore pellets with Captain Ernest M. McSorley in command, she embarked on her ill-fated voyage from Superior, Wisconsin, near Duluth, on the afternoon of November 9, 1975. En route to a steel mill near Detroit, Edmund Fitzgerald joined a second taconite freighter, SS Arthur M. Anderson. By the next day, the two ships were caught in a severe storm on Lake Superior, with near hurricane-force winds and waves up to 35 feet (11 m) high. Shortly after 7:10 p.m., Edmund Fitzgerald suddenly sank in Canadian (Ontario) waters 530 feet (88 fathoms; 160 m) deep, about 17 miles (15 nautical miles; 27 kilometers) from Whitefish Bay near the twin cities of Sault Ste. Marie, Michigan, and Sault Ste. Marie, Ontario—a distance Edmund Fitzgerald could have covered in just over an hour at her top speed.

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