63% chance of a record-breaking El Niño. What happens next?
El Niño has officially arrived in the tropical Pacific and forecasters warn it could become one of the strongest on record. The data is clear; the consequences for food, water, and heat are global.
The Pacific Just Sent a Warning Signal
Something significant is happening beneath the surface of the tropical Pacific Ocean. For months, vast volumes of unusually warm water have been shifting eastward, travelling hundreds of feet below the surface before rising closer to South America. Now that warm water has arrived — and it is already reshaping weather patterns across the planet.
NOAA's National Weather Service has announced that El Niño has developed in the tropical Pacific, and issued an El Niño Advisory, with the event predicted to intensify to a moderate or strong level this autumn. NOAA is giving this El Niño a 63% chance of becoming a "very strong" event colloquially known as a Super El Niño and one of the largest El Niño events in the historical record going back to 1950. National Oceanic and Atmospheric AdministrationCNN
This is not a distant forecast. El Niño is here, and it is strengthening now.
What the Numbers Actually Tell Us
El Niño is the warm phase of the El Niño–Southern Oscillation (ENSO) a natural cycle of ocean temperature shifts in the equatorial Pacific that redistributes heat and moisture around the globe. It is one of the most powerful naturally-occurring climate patterns on Earth.
The WMO's latest update indicates an 80% likelihood of an El Niño event persisting through June–August 2026, with probabilities of continuation through at least November approaching or exceeding 90%. Most forecast models suggest the event will be at least moderate and possibly strong. WMO
The latest NOAA forecast confirms that El Niño is already underway as of June 2026, and indicates nearly 90% odds of the event reaching at least "strong" intensity, with over 60% odds of a "very strong" event by autumn or early winter. If sea surface temperatures in the monitored Pacific region exceed 2°C above the baseline average, NOAA classifies the event as "very strong." Some computer models suggest that threshold will be significantly exceeded. Weather West
The last two comparable events in 2014–2016 and 2023–2024 — brought record heat around the world. The 2023–2024 El Niño helped virtually guarantee that 2027 will become the planet's warmest year on record, extending a streak of heat that has defined the past decade. CNN
Who Feels It First and Hardest
El Niño does not affect everyone equally. Its immediate footprint is felt in the tropics, and the communities least responsible for climate change often absorb its sharpest blows.
The strongest initial impacts tend to fall across tropical regions, with El Niño bringing enhanced drought to a wide band of locations from Indonesia to the northern Amazon. For the Greater Horn of Africa, seasonal forecasts from the relevant regional climate forum predict a high likelihood of below-normal rainfall during the critical June–September rainy season. South Asia including India is expected to receive below-average monsoon rainfall. NPRWMO
Below-average monsoon rainfall in South Asia is not a seasonal inconvenience. It threatens crop yields, water reservoir levels, and the livelihoods of hundreds of millions of people who depend on the June–September rains. Communities already navigating climate stress, debt, and food insecurity face compounding pressure when El Niño disrupts the seasonal rhythms they plan their lives around.
Meanwhile, forecasts for the June–July–August season project a near-universal dominance of above-normal temperatures across almost all parts of the globe, increasing the risks of heat stress and accelerating the development of drought conditions where rainfall is reduced. WMO
Climate Change and El Niño: An Amplifying Relationship
Here is the critical distinction scientists want the public to understand: El Niño is a natural cycle. Climate change is a human-caused, long-term trend. They are not the same thing but they interact, and not in a reassuring way.
Human-caused global warming from burning fossil fuels remains the primary reason the planet is warming. Even without El Niño, recent years have ranked among the hottest ever recorded. What El Niño does is temporarily amplify an already elevated baseline. Its function in the global Earth system is to release heat from the deeper oceans that has been temporarily stored there it essentially allows subducted heat to surface. NPRNPR
In a world that was not already running hot from fossil fuel emissions, a strong El Niño would still be disruptive. In the world we actually inhabit, it lands on top of background warming that has already broken record after record. A recent study confirmed that human activities pushed global warming to 1.37°C in 2025, with the entire climate system continuing to heat at an accelerating rate. Earth.Org
What Preparedness Actually Looks Like
WMO Secretary-General Celeste Saulo has noted that advance seasonal forecasts and early warnings are vital to saving lives and cushioning economic impacts — and that the time for informed decision-making, planning, and preparedness is now. WMO
Early warning systems, coordinated agricultural planning, heat action protocols, and water conservation infrastructure are not abstract policy goals — they are the practical toolkit that stands between a strong El Niño event and preventable deaths. Countries and regions that have invested in climate services consistently demonstrate lower mortality and economic loss during ENSO extremes.
For individuals, the most useful step is straightforward: follow updates from national meteorological services, understand what seasonal shifts are projected for your region, and recognise that the unusual weather patterns beginning to appear this summer are not random. They are part of a documented, well-understood system — one that science has tracked, modelled, and warned about.
The data has spoken. The question now is whether the response matches the scale of what's coming.
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