Not official
El Niño Track is an unofficial summary of public NOAA and other agency data. We are not NOAA, CPC, or any government office.
Aviso legal
Please read this before using El Niño Track for any decision.
Not a forecast
Regional “often wetter / often cooler” lines and king-tide windows are historical patterns or stored readings, not predictions for your location this season.
Translations
Pages in Spanish, Portuguese (Brazil), and Indonesian use asistida por máquina translation from English source copy. If wording conflicts, treat the English page and the linked official source as authoritative.
NOAA attribution
ENSO index values, composites, and tide/flood products credited to NOAA remain © public domain U.S. government work where applicable. We link to the official product pages.