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 …
Note the major La Niña in 1988-1999, and major El Niños in 1996-1997 and 2015-2016. Years are marked on the left side, with 1986 at the top and the latest year at the bottom; Both panels …
El Nino and La Nina Years: NOAA Physical Sciences Laboratory
Top 24 Strongest El Niño and La Niña Event Years by Season. The values below were calculated using PSL's Extended Multivariate ENSO Index (MEI.ext) for 1895 to 2015.
What are El Nino and La Nina? - NOAA's National Ocean Service
Episodes of El Niño and La Niña typically last nine to 12 months, but can sometimes last for years. El Niño and La Niña events occur every two to seven years, on average, but they don’t …
El Niño and La Niña: Frequently asked questions
2016年1月18日 · Both El Niño and La Niña can last more than a year, but it is rare for El Niño events to last longer than a year or so, while it is common for La Niña to last for two years or …
El Niño & La Niña (El Niño-Southern Oscillation) - NOAA …
2024年11月14日 · 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. The …
Past Events - National Oceanic and Atmospheric Administration
Temporal evolution of El Niño and La Niña events indicated by the MEI.v2. Shown are the top 5 warm and cold non-overlapping events since 1979. Year 0 corresponds to the year of the …
What are El Niño and La Niña, and how do they change the weather? - BBC
2023年1月10日 · El Niño and La Niña episodes typically occur every two to seven years, and usually last nine to 12 months. They don't necessarily alternate: La Niña events are less …
El Niño / La Niña - World Meteorological Organization
2024年12月11日 · The oscillation between ENSO warm phase (El Niño) to neutral or cold (La Niña) conditions occurs on average every three to five years, while also ranging from two to …
What is La Niña? | El Nino Theme Page - A comprehensive Resource
In the continental US, during El Niño years, temperatures in the winter are warmer than normal in the North Central States, and cooler than normal in the Southeast and the Southwest. During …