Historic freeze in store for Lake Superior

Historic freeze in store for Lake Superior

(CNSNews.com) – Lake Superior hasn’t completely frozen over in two decades.But an expert on Great Lakes ice says there’s a “very high likelihood” that the three-quadrillion-gallon lake will soon be totally covered with ice thanks to this winter’s record-breaking cold.

The ice cover on the largest freshwater lake in the world hit a 20-year record of 91 percent on Feb. 5, 1994.

Jay Austin, associate professor at the Large Lakes Observatory in Duluth, Minn., told CNSNews.com that he expects that record will be broken this winter when the most northern of the Great Lakes becomes totally shrouded in ice.

The thickness of the ice on Lake Superior “varies tremendously,” from a very thin sheet in some areas near the coast to several feet thick in other spots, Austin says. The  National Oceanographic and Atmospheric Administration (NOAA) reports that the mean thickness of the lake ice is 26 cm, or a little over 10 inches.

The previous record of 22 days was set in 1936 and tied in 1963, according to the National Weather Service. …

As of February 10th, ice covered 80.4 percent of all the Great Lakes, compared to 38.4 percent last winter, according to NOAA. That’s considerably higher than the lake’s long-term average of 51.4 percent under ice.

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