El Niño and La Niña Years and Intensities - Golden Gate Weather …
The Oceanic Ni ñ o Index (ONI) has become the de-facto standard that NOAA uses for classifying El Ni ñ o (warm) and La Ni ña (cool) events in the eastern tropical Pacific. It is the running 3 …
El Niños & La Niñas from 1986 to the present | El Nino Theme …
El Niño events are the larger red scallops and La Niña events are the larger blue scallops. Realtime graphic (below) and Explanation.
March 2025 ENSO update: neutral conditions expected soon
Mar 13, 2025 · La Niña conditions persisted through February, but forecasters expect ENSO-neutral conditions to develop in the next month and persist through the Northern Hemisphere …
La Nina Index Dashboard: NOAA Physical Sciences Laboratory
There is also a El Niño Dashboard looking at the current time-series values and comparing them to historic El Niño events. These plots show the 2021-22 values compared to various indices …
El Niño & La Niña (El Niño-Southern Oscillation) - NOAA …
Mar 13, 2025 · El Niño and La Niña are the warm and cool phases of a natural climate pattern across the tropical Pacific known as the El Niño-Southern Oscillation, or “ENSO” for short.
IRI – International Research Institute for Climate and Society
The IRI’s definition of El Niño, similar to NOAA/Climate Prediction Center’s, requires that the monthly SST anomaly in the NINO3.4 region (5°S-5°N; 170°W-120°W) exceed +0.5 °C. …
Composite ENSO Plots: NOAA Physical Sciences Laboratory
Composite (average) atmospheric variables associated with 10 El Niño and 10 La Niña events from 1948 to the present. Events are defined for winter (Nov-Mar) and summer (May-Sep). …
El Niño and La Niña: Frequently asked questions
Jan 18, 2016 · El Niño (the warm phase) and La Niña (the cool phase) lead to significant differences from the average ocean temperatures, winds, surface pressure, and rainfall across …
Global temperature anomalies by El Niño and La Niña conditions
Jan 7, 2025 · The difference between a month's average land-sea surface temperature and the 1991–2020 average of the same month, measured in degrees Celsius. It is classified as El …
El Niño Today | El Nino Theme Page - A comprehensive Resource
Comparison with Previous El Niños / La Niñas What does this graphic mean? Compare current & historical events with the Oceanic Niño Index (ONI) from the NCAR/UCAR/Climate Data Guide