Potential Record Ice on Lake Superior May Mean a Cool Spring
With no end in sight, the winter of 2014 rages on, ushering in frigid Arctic air and dumping record-breaking snow and ice on much of the nation. This season, ice coverage on Lake Superior has exceeded other measurements in recent history.
“By the long shot this is the most ice we’ve had on Lake Superior in 20 years,” Associate Professor Jay Austin of the Large Lakes Observatory in Duluth, Minn., said.
During a typical winter, 30 to 40 percent of the Great Lakes are covered by ice, according to AccuWeather Senior Meteorologist Brett Anderson.
Usually Arctic air swept over the Great Lakes creates lake-effect snow, but modifies the air, making it warmer. This usually makes regions from Ohio through the Northeast a little warmer than it otherwise would be.
However, this winter 80 to 90 percent of the Great Lakes are covered in ice. As of Thursday, Feb. 13, 2014, Lake Superior was classified as 90 percent covered.
“The Arctic air masses don’t get warmed up as much because of all the snow and ice,” Anderson said. “There has not been much of a thaw so the ice keeps building up.”
The last time in recent history the ice coverage was even close to this winter’s percentage was the winter of 1993/94. That winter ice coverage was measured at 90.7 percent.
http://www.accuweather.com/en/weathe...or-ma/23439393
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