National Oceanic and
Atmospheric Administration
United States Department of Commerce

La NIna

La Niña sea temperatures driving floods in Australia and drought in the United States and Africa

Right now, a broad plume of cool water has pooled in the Pacific Ocean, west of South America. It's the signature of La Niña.  While Australia waits to see whether La Niña will be declared, the United States has already called it, using slightly less stringent criteria. Mike McPhaden is featured. 

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