El Niño/La Niña Update (November 2011)

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17 November 2011
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La Niña conditions were re‐established in the tropical Pacific during August, after a brief period

of neutral conditions following the significant La Nina of 2010‐11. Model forecasts and expert

interpretation suggest that La Niña should remain in place until at least the end of 2011, with

some further strengthening possible. The current La Niña is likely to be considerably weaker than

the La Niña event of 2010‐11. Over the coming months, National Meteorological and

Hydrological Services and other agencies will continue to monitor and predict Pacific Basin

climate patterns in order to assess the strength and longevity of this La Niña event.

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  • El NIño / La Niña Update