NOAA Raises 2026 Super El Niño Weather Odds to 1 in 3
NOAA’s Climate Prediction Center said 2026 super el niño weather is emerging faster than expected in the Pacific Ocean, with a 2 in 3 chance that peak strength will be strong or very strong. The agency said the odds of a Super El Niño between November and January have risen to about 1 in 3, while the event is expected to last through winter with 96% probability.
The latest monthly update, issued Thursday, said average water temperatures are just below the 0.5-degree threshold now and should climb above the weak El Niño level by next month. Michelle L’Heureux, who leads El Niño and La Niña forecasting at the Climate Prediction Center, said, “there is still substantial uncertainty in the peak strength of El Niño.”
Michelle L’Heureux on summer warming
L’Heureux said, “A stronger El Niño is more likely if changes in the atmosphere continue to sync with changes in the tropical Pacific Ocean this summer.” That leaves the forecast on an upward track, but not a locked outcome. Some computer models now show this year’s potential Super El Niño could become the strongest on record.
The strongest recent benchmark is the 2015-2016 event, which NOAA says was the strongest in its records dating to 1950. Other Super El Niño events listed by NOAA include 1997-1998, 1982-1983 and 1972-1973. The new forecast matters most because the system usually peaks in the Northern Hemisphere’s winter, when a stronger event can push droughts, heat waves, flooding rainfall, wildfire danger and water supply concerns in different directions at once.
Pacific Ocean thresholds
NOAA said weak El Niño conditions begin once temperatures rise over 0.5 degrees Celsius above average for an extended period, while a very strong or Super El Niño requires water temperatures more than 2 degrees above average. El Niño typically occurs every two to seven years and usually lasts nine to 12 months, which is why the latest jump in probabilities is drawing close attention now.
For communities that watch seasonal outlooks, the key change is not just that El Niño is developing, but that it is developing faster than expected and is now more likely to persist through the winter season. The next update from the Climate Prediction Center will show whether the atmosphere and tropical Pacific Ocean have moved closer to the synchronized pattern L’Heureux described this summer.
