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Is La Nina Here to Stay for the Full Winter?
USAgNet - 12/09/2016

A La Nina that threatens to push cold temperatures across the northern U.S. and extend drought conditions in the south will probably remain in the Pacific deep into the winter, fading away by spring, according to U.S. forecasters. According to Bloomberg News, the weather phenomenon -- defined by a cooling of the equatorial Pacific Ocean’s surface that touches off a change in atmosphere patterns -- will probably bring colder and wetter conditions to the northern stretches of the U.S. and warmer, drier conditions to the south, the U.S. Climate Prediction Center said in a report Thursday. Natural gas traders betting on a frosty winter have already driven prices for the heating fuel to a two-year high as cold grips the central U.S.

The consensus from U.S. forecasters favors the continuation of weak La Nina conditions through February, the center's report shows.

That consensus doesn't include the Australian Bureau of Meteorology, which earlier this week said La Nina isn't happening and probably won't in the coming months. The U.S. determines the event has arrived when sea surface temperatures cool to at least a 0.5 of a degree Celsius (0.9 Fahrenheit) below normal. Australia declares a La Nina when waters cool by at least 0.8 of a degree.

The Climate Prediction Center declared a La Nina in November, while the Japan Meteorological Agency said it began in September.

An unseasonably warm November bloated U.S. natural gas stockpiles, driving prices for the heating fuel used in about half of all U.S. households lower. A bitterly cold start to December that will feature temperatures as much as 15 degrees Fahrenheit (8 Celsius) below normal in the Midwest next week has led to a price surge.


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