New weather maps show the ongoing 'Super El Niño' event appears to have developed a second extension, indicating a significant expansion of unusually warm waters across the Pacific Ocean. Images released by Peru's National Meteorological and Hydrological Service (Senamhi) show the warm-water anomaly spreading beyond its previous footprint over recent weeks.
A map published on September 30 depicted a broad ribbon of elevated sea-surface temperatures stretching westward from the coasts of Ecuador and Peru. However, updated data collected on October 14 shows the warm waters have extended further south along the Chilean coastline and into the south-eastern Pacific.
Second Arm Emerges
The expansion has created what looks like a second arm emerging from the main body of warm water, giving the phenomenon an increasingly pronounced and unusual shape. It means a far larger area of the eastern Pacific is now being affected by unusually warm sea-surface temperatures, with some regions recording temperatures more than 3C above the seasonal average, reports Mail Online.
The development is likely to intensify concerns among climate experts, who have warned that the current El Niño is strengthening rapidly. The growing expanse of warm water adds to evidence suggesting the phenomenon could develop into one of the most powerful El Niño events seen in centuries, with the potential to influence weather patterns around the world.
Expert Warnings
Climate scientist Zeke Hausfather told the publication: "I think that this year's El Niño event is likely to be the strongest in 1,000 years if the latest models of its peak prove accurate."
Britons have already been advised to brace for a turbulent autumn marked by heavy rainfall and storms, before colder and more settled conditions take hold during the winter months. The warning comes as government officials have encouraged households to make basic preparations for periods of severe weather.
Last month, the Department for Environment, Food and Rural Affairs urged people to ensure they have essential supplies available in case extreme conditions disrupt access to services. The department said that maintaining a small reserve of food could prove beneficial during emergencies, reducing reliance on immediate assistance if adverse weather affects local infrastructure or transport links.
Impact on UK and Global Weather
Dr Chloe Brimicombe, a climate researcher at the University of Oxford, said colder, calmer weather can also create challenges for Britain's renewable energy supply. "Wind power generates 40 per cent or more of the UK's electricity during winter and cold, calm periods can require more gas power to make up for lower wind generation and increased demand for heating," she wrote on The Conversation.
El Niño is one phase of the naturally recurring El Niño-Southern Oscillation (ENSO), a climate pattern that alternates between warmer and cooler conditions every two to seven years. During an El Niño event, the trade winds that typically push warm surface waters westward across the Pacific towards Australia weaken significantly or, in some cases, reverse direction altogether. As a result, warm water accumulates across the central and eastern equatorial Pacific, particularly off the western coast of South America.
US meteorologist Ryan Maue wrote on X: "New maps show Earth almost entirely in the red. El Niño continues at 'maximum power' into the winter with planetary heating dialled up everywhere except the United States." The latest alert follows the release of dramatic weather maps by meteorologists, showing vast regions of the planet highlighted in red, a sign that temperatures are increasingly likely to rise above seasonal norms. The striking forecasts point to widespread warmth across multiple continents, reinforcing concerns that global temperatures could remain exceptionally high as the powerful El Niño pattern continues to strengthen.
