2015 El Nino to Bring Back-to-Back Hottest Years on Record?

robertscribbler

For the past six months, the Pacific Ocean has been very, very warm. A vast and unsettling expanse of record heat building from the tropics on through the mid lattitudes and into the Arctic.

Sea surface temperatures across a broad swath of ocean from the equator on north and eastward have consistently measured between 0.5 and 5 degrees Celsius above average. A lazy reverse C pattern of heat stretching from the equator running up along the west coast of North America and then re-curving westward just south of the polar zone.

It is a pattern that is indicative of a well developed positive phase Pacific Decadal Oscillation. A kind of pattern that results in very warm sea surface temperatures for much of the Pacific. And a pattern that tends to favor the formation of El Nino.

As of December 2014, PDO values had climbed to their highest on record

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