Little chance of El Nino or La Nina developing in 2013: WMO
Zee Media Bureau
Geneva: The UN weather agency World Meteorological Organisation (WMO) said on Wednesday that there is only a small chance of an El Nino or La Nina system developing in the Pacific Ocean this year.
The two climate phenomena, which cause an abnormal warming or cooling of the surface of parts of the Pacific Ocean, also cause extreme weather such as floods and droughts in many parts of the world.
The World Meteorological Organization said forecasts showed that Pacific climate patterns were set to remain neutral through the rest of the year, although “a slight chance of La Nina or El Nino development remains.”
El Nino happens every two to seven years, when the trade winds that circulate surface water in the tropical Pacific start to weaken. It last occurred from June 2009 to May 2010.
El Nino is often followed by La Nina which was last declared over in April 2012. El Nino is characterised by unusually cool ocean surface temperatures in the central and eastern tropical Pacific.
With Agency inputs
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