Wind speeds of 50 knots were recorded over the eastern part of the lake. As the low crossed the lake, winds shifted to the northwest and increased. Ship observations during the November 1975 storm showed sustained wind speeds of 30 to 45 knots from the northeast, east, or southeast prior to the low-pressure system crossing the lake. Its pressure that evening was 28.88 inches.
The low tracked northeast across Lake Superior that morning before reaching just southwest of James Bay in Ontario during the evening.
On the morning of November 10, the low was located over Marquette, MI, and had a pressure of 29.00 inches. During the next 12 hours, the storm system underwent its most rapid intensification as it moved northeast into Upper Michigan. By the evening of November 9, the low had moved northeast to eastern Iowa and had strengthened to 29.32 inches. Early on the morning of November 9, a low-pressure system was organizing in central Kansas and had a pressure of 29.53 inches. While intense, it was not unusually strong for November. During the period of November 9-10, 1975, a strong autumn storm tracked from the central U.S. First the 1975 storm the one that brought down the Edmund Fitzgerald. The great lake region had two big storms on the same dates one in 1975 and the other in 1998. That already will make today the 6 th warmest ever for any November 5 th I write my Saturday reports just after midnight as I am not one who always gets up early. Also, of note as I write this just after midnight on November 5 th the current temperature here in MBY and officially at GRR is 67. As we wait and see just how much wind we get today and see how it compares to November storms in the past.
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