Thursday, January 27, 2011

Probably Second Most-Powerful La Niña On Record

Still very strong:
The average August to December SOI (+21.1) has only been exceeded by the La Niña of 1917-18 (+24.4), with the 1975-76 La Niña value (+18.8) ranked third. Several other indices also suggest the La Niña events of 2010-11, 1975-76, 1917-18, 1955-56 and possibly 1988-89, rank closely in terms of the strongest events on record.

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