The Climate Prediction Center (CPC), an agency
of the National Weather Service, had made its earlier prediction
in July.
"The consensus of forecasters expects El Nino to emerge
during August-October and to peak at weak strength during the
late fall and early winter," the agency said in a monthly update
on Thursday.
Last month, the CPC forecast a 70 percent chance for El Nino to
occur in the summer.
"Over the last month, model forecasts have slightly delayed the
El Nino onset," it said.
The agency downplayed the possibility of a strong El Nino,
saying there was a higher chance of a weak to moderate event.
(Reporting by Marcy Nicholson; Editing by Jeffrey Benkoe and
Bernadette Baum)
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