There it is: Niño3.4 SSTs more than 1.5°C above normal - the typical SST definition of a "strong" El Niño.

The latest round of surface warming is the result of Niño-like patterns emerging in the tropical atmosphere at last: subsidence over Indonesia, reduced Pacific trade winds. pic.twitter.com/RUpOYvJDxr

— World Climate Service (@WorldClimateSvc) August 25, 2023