The most powerful El Niño forecast in modern climate records has not yet reached its peak, and the world’s most vulnerable populations are already in its path. NOAA’s Climate Prediction Center raised the probability of a “very strong” El Niño to 81% in early July — up from 63% when the agency declared the event active on June 11 and from just 37% in May — reflecting extraordinary model consensus that this season’s Pacific warming will exceed the strongest events measured since 1950. At the same time, the United Nations Food and Agriculture Organization and the World Food Programme issued their first-ever joint Anticipatory Action Appeal, requesting $202 million to protect 8.8 million people across 22 high-risk countries before the peak impacts arrive. The 2015–16 Super El Niño — the strongest in the modern record until now — pushed more than 36 million people across East and Southern Africa alone into hunger. The event building now is forecast to be stronger.
“We know that El Niño is on its way. We know where communities will be most at risk and we know the kinds of impacts they will face,” said Rowan Cody, Deputy Director of Emergency Preparedness and Response at Action Against Hunger. “When these impacts coincide with major humanitarian crises, such as those in Nigeria, the DRC or Chad, they act as amplifiers of vulnerability. Waiting for the crisis to happen before taking action comes at an unacceptable human cost.”
How the Pacific Decides What Everyone Eats
El Niño begins as a physics problem in the equatorial Pacific: trade winds weaken, warm surface water surges eastward, and the eastern Pacific warms further — which weakens the trade winds more. The mechanism is a self-reinforcing feedback loop that meteorologist Jacob Bjerknes first described in 1969, now called the Bjerknes feedback. Beneath the surface, gravity-driven pulses called Kelvin waves travel east along the thermocline — the boundary between warm surface water and cold deep water — deepening it and warming the eastern Pacific as they pass. NOAA’s July diagnostic discussion confirmed that “a recent downwelling Kelvin wave deepened the thermocline and raised temperatures in the eastern Pacific,” the proximate mechanism for the event’s rapid July intensification.
What makes this elementary Pacific physics a global humanitarian event is the Walker Circulation — the vast atmospheric overturning loop that connects warm, rising air over the western Pacific to dry, sinking air over the eastern Pacific under normal conditions. When El Niño breaks the Walker Circulation, it doesn’t just change weather in the Pacific. It reorganizes large-scale atmospheric circulation across the entire planet, rewiring rainfall patterns, jet stream positions, and temperature anomalies from Somalia to Peru to the US Gulf Coast simultaneously.
The 2026 event has been intensifying faster than any prior El Niño on record for this developmental stage. By July 15, the Niño-3.4 monitoring region — a rectangle of central equatorial Pacific that climate scientists use as the primary yardstick for the event’s strength — was recording an anomaly of +2.1°C above the 1991–2020 climatological baseline. By July 17, CBC News reported that Pacific sea surface temperatures had already reached their warmest-ever readings at this specific point in any El Niño’s development cycle. The event is on record pace not just in absolute terms, but relative to timing. Climate scientist Zeke Hausfather put the trajectory plainly: the multi-model median projects a peak El Niño around 3.6°C (6.5°F) above the seasonal average — compared to a prior all-time record of 2.75°C (4.95°F) set in 2015–16. The gap between the strongest and fifth-strongest El Niños of the past 150 years is roughly 0.5°C (0.9°F). The 2026 models project an outcome that sits outside the entire historical envelope.
NOAA now assigns a 97% probability that El Niño conditions will persist through early spring 2027. The International Research Institute for Climate and Society’s mid-July 2026 ensemble shows 23 of 26 models projecting a “very strong” El Niño at its October–December 2026 peak, with El Niño probability at 100% from July through February 2027. The event’s peak is still months away.
Why Forecasters Are More Confident Now Than They Were in May
ENSO forecasts made before June systematically lose skill — not because scientists misunderstand the physics, but because chaotic atmospheric variability during boreal spring swamps the signal from ocean temperature anomalies. This well-documented phenomenon is called the Spring Predictability Barrier. A model initialized in April hedges because the noise overwhelms the signal; the same model initialized in July can deliver a much sharper estimate.
That barrier has passed. As IRI explicitly stated in its mid-July 2026 Quick Look: “As this outlook is issued in July, the boreal spring predictability barrier has already passed. Therefore, the high-confidence outlook is supported by strong model consensus.” The jump from 37% probability (May) to 63% (June 11) to 81% (July 9) is not random noise — it reflects models shedding their spring uncertainty as they lock onto a genuine, verifiable ocean state.
NOAA’s Geophysical Fluid Dynamics Laboratory ran its SPEAR seasonal prediction model 30 times from slightly different starting conditions in its July 2026 forecast update. All 30 ensemble members projected a peak El Niño strength at least competitive with the strongest events of the past century. In ensemble forecasting, unanimity across every member of a large ensemble is the primary technical indicator of high forecast confidence, and it is rare.
Dr. Daniel Swain, a climate scientist at the University of California Agriculture and Natural Resources, framed the stakes of this confidence: “We’ve never experienced a strong or very strong El Niño event amid pre-existing conditions that were this warm globally.” The historical playbooks — the 1982–83 impact maps, the 1997–98 flood and drought patterns, the 2015–16 temperature records — were calibrated against events that unfolded on a cooler ocean. But Professor Paul Roundy, an atmospheric scientist who studies El Niño, has cautioned that with only three prior super El Niños in the instrument record, the statistical base for confident predictions about specific regional impacts remains limited. Model unanimity is not the same as verification against a real precedent.
Latin America Faces Drought and Flood Simultaneously
For South America, El Niño’s impacts divide sharply along geographic lines — drought in some areas, catastrophic flooding in others, often at the same time.
In coastal Peru and Ecuador, the event delivers the most direct blow. Under normal Pacific conditions, the cold Humboldt Current — flowing northward from the Southern Ocean — combines with coastal upwelling driven by trade winds to maintain one of the planet’s most productive marine ecosystems. When El Niño’s warm water arrives, the cold Humboldt Current weakens, the thermocline deepens, and upwelled water becomes warm and nutrient-poor instead of cold and nutrient-rich. Fish populations — particularly the anchoveta that sustains the world’s largest single-species fishery — either collapse or migrate south, disrupting the global fishmeal market and the livelihoods of tens of thousands of fishing families. Coastal Peru and Ecuador then face flooding from inland storm development that would not occur in drought-prone desert zones under normal conditions. Córdoba Airport meteorologist Marcelo Madelón explained the mechanism: where cold water once suppressed storm formation, warm water arrival “begins to develop important storms in desert areas” and drives moisture pulses deep into the interior.
Northern Brazil, the Amazon basin, and Central America face heightened drought risk. The 2015–16 Super El Niño left 3.5 million people food-insecure in Central America’s Dry Corridor alone. Southern Brazil, Uruguay, Paraguay, and central-eastern Argentina face the opposite — heavy flooding beginning in spring, driven by moisture pulses from the reorganized Walker Circulation.
Switzerland-based Swiss Re analysis flagged a $6 billion crop protection gap in Latin America alone as the 2026 event develops, as reported in prior TechTimes coverage.
The World Economic Forum warned in June that the 2026–27 event could strike “a hotter planet already facing brittle food systems, fragile public finances, stressed energy markets and growing geopolitical instability,” making the humanitarian calculus more complex than in any previous episode.
Africa’s Asymmetric Threat: Where the Stakes Are Highest
No region faces the combination of El Niño scale and structural vulnerability more acutely than Sub-Saharan Africa — and the impacts split sharply between the continent’s east and south.
The precedent from 2015–16 is the clearest warning: that Super El Niño pushed more than 36 million people across East and Southern Africa into hunger. Southern Africa experienced severe drought that season, pushing 18 million people into food insecurity in that subregion alone. In East and Central Africa, El Niño drove the opposite extreme — heavy rainfall that destroyed more than 600,000 homes and damaged farmland and health infrastructure. The 2023–24 El Niño, ranked among the five strongest on record until the current event arrived, pushed 8 million people into food insecurity in Southern Africa before it ended.
The 2026 event has the potential to be considerably worse. Eastern Africa — particularly Somalia, Ethiopia, and Kenya — faces elevated flood risk from the October-to-December “short rainy season,” which El Niño typically intensifies. FAO’s lead regional meteorologist for East Africa, Bethwell Mutai, issued an unusually direct public warning: “Preparedness should begin now, not when the rains start.”
Southern Africa faces drought. In West Africa, El Niño has historically reduced harvests, raised food prices, and left families struggling with food shortages for extended periods after the peak.
What makes the 2026 event structurally different from 2015–16 is the humanitarian baseline on which it lands. Ongoing conflicts in the DRC, Nigeria, Sudan, Chad, and Somalia have left tens of millions already food-insecure before El Niño adds its weight. International aid budgets are under pressure. Ayan Harare, Somalia’s national climate finance coordinator, put the systemic gap plainly: “Climate crisis preparedness remains far too weak to match the scale and magnitude of its impacts.”
The joint FAO/WFP appeal — the two agencies’ first-ever combined anticipatory action funding request — seeks $202 million to reach 8.8 million people in 22 countries including Ethiopia, Kenya, Somalia, Sudan, Pakistan, the Philippines, Colombia, and Haiti before peak impacts arrive. The agencies estimate that every dollar invested in anticipatory action generates up to $7 in avoided losses and response costs. Funding levels remain well below what is needed.
How Climate Change Is Loading the Dice
El Niño is a naturally occurring feature of Earth’s climate system — it has recurred every two to seven years for at least 300 years, and probably as long as 10,000 years. But the world in which the 2026 event is unfolding is not the same world that produced any prior super El Niño on record.
Global average temperatures were running more than 1.4°C (2.5°F) above pre-industrial levels before this El Niño arrived. Every super El Niño in the modern instrument record — 1982–83, 1997–98, 2015–16 — unfolded on a cooler ocean. When El Niño rides a warmer baseline, two things happen. First, absolute sea surface temperatures reach higher peaks even for the same anomaly. Second, the heat the ocean transfers into the atmosphere is greater in absolute terms, because the starting temperature is higher. As Cindy Fernández, a meteorologist at Meteored, explained: “The last El Niños tend to have increasingly higher anomalies because climate change means the ocean is getting warmer and warmer. The problem with warmer water is that the heat also gets transferred to the atmosphere.”
WMO Secretary-General Celeste Saulo noted the precedent: “The most recent El Niño, in 2023–24, was one of the five strongest on record and it played a role in the record global temperatures we saw in 2024.” The 2026–27 event is on course to be considerably stronger than 2023–24.
The IPCC’s Sixth Assessment Report found “medium confidence” that both El Niño amplitude and frequency of high-magnitude events since 1950 are higher than over the period from 1850 — and more recent scholarship (since 2019) has found that climate change is increasing the frequency of extreme El Niño events specifically. The WMO’s current position is more cautious than this emerging research: the agency has stated there is no established evidence that climate change increases the frequency of El Niño events per se, while acknowledging that a warming baseline means each event rides higher.
The EU’s Joint Research Centre released an analysis in June projecting that extreme heat will build across the tropics and subtropics from September, peak between December 2026 and February 2027, and persist into spring 2027 across all intensity scenarios. In the United States, NOAA warns of a southward shift in the Pacific jet stream during winter, bringing wetter conditions to the southern tier while leaving northern and upper Midwest areas drier. India’s monsoon was already running approximately 20% below its long-term average through mid-July — one of El Niño’s most consistent regional signals. Europe experienced more than 1,300 excess deaths from El Niño-connected heat in just the four weeks after June 21, as reported by TechTimes citing France24 and NBC News.
What Happens After the Peak: Conditions May Not Return to Normal
The largest implication of the 2026 El Niño may not be how strong it is at its October–December 2026 peak, but what happens in the years after it fades — and whether “fades” is even the right word.
Research published in Nature Communications in December 2025, led by Professor Jong-Seong Kug of Seoul National University, analyzed the three prior super El Niño events and found that events of this intensity significantly increase the probability of what climate scientists call “climate regime shifts” — abrupt, persistent transitions in ocean temperatures, soil moisture, and atmospheric conditions that can endure for years or decades after the El Niño itself has dissipated. After the 2015–16 super El Niño, the Gulf of Mexico reached a new sustained temperature baseline that persisted for years and contributed to elevated hurricane intensity in subsequent seasons. Under global warming scenarios, the study found this effect would be amplified across the central North Pacific, the Gulf of Mexico, East Africa, the Amazon, and central Australia.
This matters practically. Farmers in East Africa, ranchers in southern Brazil, and agricultural planners in South and Southeast Asia may be calibrating their 2027 and 2028 planning against conditions that no longer apply after this event. Fisheries managers who expect the anchoveta population to rebound on its usual schedule may be working with the wrong timetable. Governments that fund drought preparedness based on multi-year averages may find those averages have shifted.
Professor Paul Roundy urged appropriate caution: with only three previous super El Niños on record, the statistical base for confident region-by-region predictions about regime shifts remains limited. That caution cuts both ways — the limited sample is precisely why affected communities should plan for a longer adjustment horizon rather than a shorter one.
What the Science Cannot Yet Tell Us
The models agree on this event’s strength with unusual unanimity. That is the good news. The challenge is that unanimity is not the same as validation — no ensemble has ever been trained on or tested against a real-world El Niño of the magnitude now being projected.
The historical analogues that underpin every regional impact forecast — what a super El Niño does to East African rainfall, to the South American jet stream, to Atlantic hurricane wind shear — were calibrated against events that peaked at 2.4°C to 2.75°C (4.3°F to 4.95°F). The 2026 event’s models project peaks around 3.6°C (6.5°F). That is not a linear extrapolation of prior experience. It is, in the language Hausfather used, an event “outside the entire historical envelope.” The impacts will follow El Niño’s known physical logic — they will just be operating in territory no forecaster has directly observed.
NOAA’s next ENSO Diagnostic Discussion is scheduled for August 13. Meteorologist Mauricio Saldívar of Meteored offered a note of cautious optimism on the science: “As we approach the dates when El Niño begins to manifest, forecasts are logically improving in precision. After passing the predictability barrier in May and June, forecasts from here on are better.” The question is whether better forecasting translates into faster action.
El Niño’s 1877–78 predecessor — one of the most powerful events estimated in 150 years of historical reconstruction — triggered simultaneous droughts across Asia, Africa, and Latin America, contributing to famine estimated to have killed tens of millions of people globally. The world of 2026 has early warning systems that 19th-century populations could not have imagined. Whether those systems translate into adequate preparation may define the human cost of the most powerful El Niño in living memory. The peak is still months away, and the window for anticipatory action is narrowing.
Frequently Asked Questions
What does “Super El Niño” actually mean, and how is 2026 different from a typical El Niño?
A Super El Niño — not an official WMO classification, but the widely used term — refers to an event in which sea surface temperatures in the central equatorial Pacific (the Niño-3.4 monitoring region) rise at least 2.0°C (3.6°F) above the 1991–2020 seasonal baseline. A standard El Niño requires only +0.5°C. The 2026 event has already reached +2.1°C in its Niño-3.4 weekly reading as of mid-July, weeks earlier than prior record events reached comparable levels. Models project a peak around 3.6°C (6.5°F) — roughly 0.85°C (1.5°F) above the prior all-time record. The difference matters because El Niño’s regional impacts — drought intensity, flooding severity, food production losses — generally scale with the event’s peak strength. A 3.6°C event would be operating in territory no modern climate model has ever been validated against in real-world conditions.
Which countries and regions face the most severe impacts from El Niño 2026?
The highest-risk agricultural and food-security zones are Southern Africa (drought, harvest failure), the Sahel and East Africa (flooding in the short-rains season, October–December), Central America’s Dry Corridor (drought), southern Brazil and northeastern Argentina (flooding), and parts of South and Southeast Asia including the Philippines and Pakistan. India’s monsoon — already running 20% below long-term average through mid-July — faces continued disruption. In the United States, El Niño’s primary winter signature is a southward-shifted Pacific jet stream bringing elevated storm and flood risk to the Gulf Coast and Southeast, while Northern Rockies and parts of the Upper Midwest see drier conditions, according to NOAA.
Why didn’t the FAO and WFP launch this kind of joint appeal for previous El Niño events?
The June 2026 FAO/WFP joint appeal was explicitly described by both agencies as their first-ever joint anticipatory action request — marking a deliberate institutional shift from reactive post-crisis response toward proactive pre-crisis investment. During the 2023–24 El Niño event, the two agencies separately delivered anticipatory action to more than three million people before peak impacts hit. The 2026 event’s scale and the convergence of existing humanitarian crises (conflict in the DRC, Sudan, Somalia, Gaza) justified combining their institutional capacity into a single coordinated appeal. FAO Deputy Director-General Beth Bechdol explained the rationale: experience has shown repeatedly that acting before crisis thresholds are reached is both more effective and less costly than emergency response after disasters have unfolded.
Could regional conditions after the 2026 El Niño peak fail to return to normal?
This is the question climate scientists are increasingly being asked, and the honest answer is: possibly, in some regions, and for longer than previous events would suggest. Research published in Nature Communications in December 2025 found that super El Niño events significantly raise the probability of “climate regime shifts” — persistent changes in sea surface temperatures, soil moisture, and atmospheric patterns that can endure for years or decades. After the 2015–16 super El Niño, the Gulf of Mexico settled into a new, warmer temperature baseline that meteorologists connected to elevated hurricane intensity in subsequent years. With the 2026 event operating on a warmer global baseline than any prior super El Niño, the regime-shift risk is assessed to be amplified. The honest scientific caveat, as atmospheric scientist Paul Roundy has noted, is that only three prior super El Niños exist in the modern record — the statistical base for confident predictions remains limited. What is certain is that planning for a full return to 2025 conditions by 2028 should not be the default assumption in the highest-risk regions.
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