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Business News›News›International›World News›El Nino to be 'very strong', last until February, UN warns

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El Nino to be 'very strong', last until February, UN warns
Synopsis

The World Meteorological Organization warns of a very strong El Nino event. This phenomenon is expected to persist through February and intensify further. Global temperatures will likely rise, impacting rainfall and temperature patterns worldwide. Communities and economies face significant disruption from floods and droughts. Disaster management authorities must prepare for increasing climate-related risks.

Reuters

El Nino is set to become "very strong" in the months ahead, with the weather phenomenon near certain to persist through to February, the United Nations' climate agency warned Thursday.



The World Meteorological Organization said El Nino would peak towards the end of this year — though its knock-on impacts for the climate will continue well into 2027.



"El Nino is firmly established and will intensify into a very strong event in the coming months, with big impacts on rainfall and temperature patterns and associated risks of floods, drought and extreme heat," the WMO said.

El Nino is a natural climate phenomenon and is not caused by climate change.



But scientists expect it will exacerbate the heat of a planet already warming from burning fossil fuels, while amping up weather extremes.




"El Nino is being supersized before our eyes," said UN chief Antonio Guterres.

"The science leaves no room for doubt: the planet is in uncharted waters, and those waters are heating up. Sea surface temperatures are rising, temperatures keep climbing, and the world is in the danger zone of extreme weather.

"The race now is between rising risks and our commitment to take climate action and protect people. We must win that race."

'Massive blow' to economies

El Nino tends to peak late in the year but heat in the oceans releases more slowly into the atmosphere, pushing up global temperatures the following year.



The hottest year on record is 2024, following the last El Nino.



"This exceptional El Nino… has the potential to deliver a massive blow to communities and economies across the world", said WMO chief Celeste Saulo.



"We are already seeing disruption and devastation from droughts and floods, and we expect these impacts to increase as El Nino intensifies."



She put disaster management authorities and climate-sensitive sectors like agriculture, health, energy and water on notice, saying there was "no time to lose" in getting ready.



El Nino warms surface temperatures in the central and eastern equatorial Pacific Ocean, bringing worldwide changes in winds, pressure and rainfall patterns.



It typically takes place every two to seven years and lasts around nine to 12 months.



Conditions oscillate between El Nino and its opposite La Nina, with neutral conditions in between.



"Fuelled by exceptionally warm ocean conditions across the tropical Pacific, El Nino is expected to strengthen further during the coming months to a very strong intensity," the WMO said.



The UN agency classifies El Nino events as weak, moderate, strong or very strong — meaning it is set to reach the highest level out of four.



The WMO said there was an "exceptionally high likelihood of nearly 100 percent" that El Nino will continue through to February.

Pacific Ocean heating up

El Nino can reshape weather and climate patterns thousands of kilometres away from the tropical Pacific.



Every El Nino is different, but major events often follow familiar patterns. This includes drought across parts of the Amazon, Indonesia and Australia, disrupted monsoons in India, and shifting rainfall throughout the tropics.



For September-November, WMO forecasts indicate an increased likelihood of above-normal temperatures "across almost all land areas", alongside rainfall patterns showing a "pronounced and classic atmospheric response to the strong Pacific El Nino", the UN's weather and climate agency said.



The index which measures sea surface temperature anomalies in the central eastern equatorial Pacific has strengthened from an average 1.5C above normal between May and July.



Weekly values between late July and mid-August ranged from around 2.2C to 2.6C above average, indicating continued El Nino intensification.



In some areas, subsurface ocean temperatures were more than 8C above average during July and early August.

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El NinoWorld Meteorological Organizationclimate changeextreme weatherglobal temperaturesfloods and droughtsclimate actionPacific Ocean

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