Three Great Lakes freeze overA month of frigid weather leads to 24-inch icecap
Reuters News Service, March 12, 2003
TORONTO Three of North Americas Great Lakes Lake Huron, Lake Superior and Lake Erie have frozen over for the first time in nearly a decade after icy weather lasting more than a month, experts at Environment Canada said on Tuesday.
A month of temperatures below minus 4 Fahrenheit has caused an ice blanket averaging as much as 24 inches on the lakes, creating problems for shipping companies and ferries.
"The large lakes freeze once every decade," said John Falkingham, chief of forecast operations, at the Canadian Ice Service, which is part of Environment Canada. "A sustained long, cold spell causes such an extensive ice cover."
The three lakes are part of the five Great Lakes, including Lake Michigan and Lake Ontario, which constitute the largest fresh water system in the world and represent 18 percent of global fresh water supply and 95 percent of the U.S. supply, according to the Great Lakes Information Web site.
Lake Superior, the largest of the five, is more than
32,000 square miles or almost the size of Austria.
Canadian Ice Service said satellite images showed that
Superior and Huron froze over for the first time this year on Feb. 27, after
record low temperatures, without a hint of the warming trend that is normal for
this time of year.
MINUS 13 DEGREES
That frigid weather continued into March. Last week, the temperature fell below minus 13 Fahrenheit in southern Ontario, the coldest for March in a century, according to Environment Canada.
The cold weather has affected the St. Lawrence Seaway,
which will now open on March 31, almost a week behind schedule, said Ivan Lantz,
director of marine operations for the Shipping Federation of Canada, an
organization of ship owners and agents involved in the overseas
"My estimate is that before the 15th of April, shipping is
going to be very difficult," Lantz said.
On Canadas east coast, ferry service between Sydney, Nova
Scotia, and Port aux Basques, Newfoundland, has also experienced difficulty
because of ice. A ferry spent part of Sunday caught in ice and had to be helped
by an icebreaker.
Falkingham said the ice is expected to thaw by the end of April.
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