For months, computer models have been forecasting the development of a strong El Niño by fall. Today, the European modeling system produced its strongest El Niño projection yet, raising the possibility of a historically intense event.
El Niño occurs when sea-surface temperatures in the central and eastern tropical Pacific Ocean warm above average. The phenomenon can have sweeping effects on weather patterns around the globe.
Breaking: The June ECMWF update has trended *even stronger* with this year's El Niño.
— Ben Noll (@BenNollWeather) June 5, 2026
Almost every scenario now reaches past +3˚C, with a cluster of high-end scenarios in excess of +4˚C.
This outlook now depicts the strongest El Niño on record. pic.twitter.com/L7YMcmVx81
In the Mid-Atlantic, El Niño winters tend to be stormier than average and have coincided with some of the DC area's biggest snow seasons. However, not all El Niños are created equal. The strongest events can flood the southern United States with Pacific moisture while also pumping mild air into the East, increasing the likelihood of rain instead of snow. The two strongest El Niños on record, in 1972-73 and 1997-98, were associated with virtually snowless winters in DC.
The European model's projections show a range of scenarios; not all of its El Niño forecasts are record-breaking. But a large number suggest the possibility.
