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How will these two things affect our weather this summer? Weather Network Chief Meteorologist Chris Scott explains.

U.S. forecaster sees likelihood of La Niña August-October

Tuesday, July 19, 2016, 6:00 - Following a damaging El Niño weather period, a U.S. government weather forecaster on Thursday said the La Niña weather phenomenon is favored to develop during August through October 2016.

What is La Niña? | What is El Niño?

The Climate Prediction Center (CPC), an agency of the National Weather Service, said in its monthly forecast there is a 55 percent to 60 percent chance that the La Niña weather phenomenon will develop during the fall and winter of 2016/17. 

Last month, the CPC forecast that La Niña was favored to develop during the Northern Hemisphere's summer with a 75 percent chance of it developing in the fall and winter.

La Niña, which is typically less damaging than El Niño, is characterized by unusually cold ocean temperatures in the equatorial Pacific Ocean. It tends to occur unpredictably every two to seven years. Severe occurrences have been linked to floods and droughts.

Watch below: La Niña ocean temperatures and heights - 2010-2011

Near-to below-average surface temperatures across the eastern equatorial Pacific Ocean were observed during the past month, the CPC said. 

Last month, the agency said that El Niño conditions, a warming of sea-surface temperatures in the Pacific that has been linked to crop damage, fires and flash floods over the past year, had largely disappeared.

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