El Niño phenomenon rapidly intensifying toward potentially historic levels

El Niño Super El Niño climate change extreme weather ocean temperatures

Climate agencies, including the World Meteorological Organization (WMO) and NOAA, report a rapid intensification of the El Niño phenomenon. Projections suggest the event could become a historic

Entities: Argentina · Brazil · European Centre for Medium-Range Weather Forecasts · NOAA · National Oceanic and Atmospheric Administration · Pacific Ocean · Super El Niño · World Meteorological Organization

Claims

What the coverage asserts, and how well corroborated each claim is across sources.

[● 2 SOURCES] In Brazil, the Super El Niño is expected to increase the frequency and intensity of windstorms, tornadoes and extreme heat, especially in the southern region. (environmental engineers and university researchers)
[○ 1 SOURCE] Heavy rainfall, flooding and landslides are forecast for the coasts of Peru and Ecuador due to the Super El Niño. (climate experts)
[● 2 SOURCES] NOAA's Climate Prediction Center estimates an 81% probability that the El Niño will be very strong between October and December. (NOAA's Climate Prediction Center estimates an 81% probability that El Niño will be very strong between October and Dec 2)
[○ 1 SOURCE] The Super El Niño is expected to cause severe drought and water scarcity in the Amazon basin and parts of Argentina. (climate experts)
[● 3 SOURCES] The Super El Niño of 2023/2026 is among the strongest El Niño events recorded in recent decades. (multiple articles)
[○ 1 SOURCE] More than 1,200 Brazilian municipalities lack organized civil‑defense structures. (More than 1,200 Brazilian municipalities lack organized civil-defense structures.)
[○ 1 SOURCE] Temperatures in Brazil could be up to five degrees Celsius above average during the Super El Niño event. (Temperatures in Brazil could be up to five degrees Celsius above average.)
[○ 1 SOURCE] About 90% of Brazilian municipalities have experienced socio‑environmental disasters in the past 30 years. (About 90% of Brazilian municipalities have experienced socio-environmental disasters in the past 30 years.)
[● 2 SOURCES] The El Niño phenomenon is expected to intensify progressively between August and October 2026. (The El Niño phenomenon is expected to intensify between August and October 2026.)
[● 2 SOURCES] The El Niño phenomenon is expected to cause extreme weather events, including severe droughts and heavy rainfall. (El Niño is expected to cause extreme weather such as severe droughts and heavy rainfall.)
[○ 1 SOURCE] The ECMWF model projects that El Niño could reach a peak near +4.0 °C in December. (ECMWF models predict a temperature peak near +4.0 °C in December.)
[○ 1 SOURCE] El Niño is expected to reduce hurricane activity in the Atlantic by increasing vertical wind shear. (El Niño could decrease hurricane activity in the Atlantic.)