‘Super El Niño’ surges past records, threatening global weather upheaval

The Pacific Ocean is brewing what forecasters and climate scientists increasingly believe will be the most powerful El Niño event in modern history, with projections pointing to a peak that could far exceed any previously recorded episode and reshape weather patterns affecting billions of people worldwide.

The U.S. Climate Prediction Center has raised the probability of a very strong El Niño during the northern hemisphere fall and winter of 2026-27 to greater than 90%. Sea surface temperature anomalies in the key Niño 3.4 monitoring region have already climbed to over 2.7°C above average as of mid-August, up dramatically from 1.7°C just a month earlier, with forecasts pointing toward approximately 4°C above average by November. The previous record was 2.75°C, set during the 2015-16 event.sacbee+2

Carbon Brief analysis of forecasts from 14 different modeling groups finds that 96% of model runs predict this event will surpass that record. China's National Climate Center has also forecast the formation of what could be the most intense El Niño ever recorded.interactive.carbonbrief+1

California Braces for Deluge

For California, the implications are already coming into focus. NOAA's Climate Forecast System projects several additional inches of precipitation across nearly the entire state during December and January, with most locations expected to see an additional two to five inches each month on top of normal rainfall. The signal remains consistent across five different climate models, showing a 40% to 65% boost statewide.sacbee

The additional rainfall, particularly if concentrated during intense atmospheric river events, could lead to localized flooding and mudslides. At higher elevations, more snowfall is expected, though warmer temperatures will push the rain-snow line higher in the mountains than normal.sacbee

Global Food Supply Under Threat

Reuters reported Tuesday that soft commodities face acute exposure. Every strong El Niño in the past 55 years has reduced cocoa output, according to investment firm WisdomTree ↘ 1.00%, and cocoa prices nearly tripled in 2024 after the previous El Niño contributed to West African harvest failures. Citi Citigroup Inc. ↘ 0.62% analysts warned that dryness in Vietnam and Indonesia could trim robusta coffee yields, while India expects its lowest monsoon rainfall in 11 years.reuters

The World Food Programme estimates that this El Niño could push at least 49 million additional people into food insecurity. The FAO and WFP have identified 22 priority countries and launched a $202 million anticipatory action appeal, though $167 million remains unfunded.meteored

A Chain of Compounding Risks

The event is still rapidly strengthening. A chain of tropical cyclones, including Hurricane Lala, which impacted Hawaiʻi over the weekend, has pushed more warm water eastward along the equator, further amplifying conditions. Scientists note that this El Niño arrives against a backdrop of human-caused warming that has already raised global temperatures by approximately 1.4°C, meaning its effects will compound on an already hotter baseline.interactive.carbonbrief+2

The broader concern, as Carbon Brief reported, is that El Niño typically adds around 0.1°C to global temperatures for every 1°C shift in the Niño 3.4 region — meaning this event could deliver a temporary global temperature spike with few modern precedents.interactive.carbonbrief