http://www.bloomberg.com/news/2010-1...t-flights.html
The storm was forecast to be the second-most severe on record for the Midwest, surpassing the Nov. 10, 1975, storm that sank the freighter Edmund Fitzgerald, an event immortalized by singer Gordon Lightfoot, according to the weather service.
The Edmund Fitzgerald storm had a central pressure of 28.95 inches. The strongest storm recorded in the lakes was the “Great Ohio Blizzard” of January 1978, which had a central pressure of 28.05 inches.