A powerful El Niño system is building across the equatorial Pacific with models now indicating it could surpass every recorded event since 1877.
The National Oceanic and Atmospheric Administration's Climate Prediction Center places a 62 percent chance on El Niño emerging between June and August 2026. Persistence through the upcoming winter stands at 96 percent according to the same agency.
Central Pacific sea surface temperatures are forecast to reach 3°C above the long-term average by November. That threshold would place the event among the strongest on record and carries a 37 percent probability of qualifying as a super El Niño between November 2026 and January 2027.
University at Albany professor Paul Roundy stated that confidence is clearly shifting higher on potentially the biggest El Niño event since the 1870s.
Grahame Madge, senior press officer at the UK Met Office, noted that while the term super El Niño is not officially used, the data point to a significant event likely to be the strongest this century and comparable to the notable 1998 occurrence.
Washington Post reporting highlights parallels to the 1877-78 El Niño that triggered famine across multiple continents and killed more than 50 million people. Current ocean temperatures already sit near historic highs, amplifying concerns.
Live Science coverage from mid-May emphasized a 25 percent baseline chance of a very strong event before recent model runs lifted the odds further. Users on X have flooded feeds with maps and personal preparations for prolonged drought in some regions and historic rainfall in others.
The Weather Channel reported on May 7 that global impacts could include altered jet streams producing extreme winters across North America and intensified monsoon failures in Asia. Central Coast California is expected to face repeated atmospheric river events if the pattern locks in.
Forecasters continue to monitor daily buoy data from the equatorial Pacific where warm water anomalies are expanding westward at an accelerating rate. No comparable setup has appeared in the modern observational record.
