NOAA Forecasts Very Strong El Niño for Northern Hemisphere Fall and Winter 2026-27

NOAA has issued an advisory indicating over a 90% chance of a very strong El Niño event developing in the Northern Hemisphere during fall and winter 2026-27. Observations show the event has intensified, with eastern equatorial Pacific sea surface temperature anomalies exceeding +3.0°C. This forecast signals potential widespread climate impacts.