What are El Nino and La Nina? - NOAA's National Ocean Service
El Niño and La Niña are two opposing climate patterns that break these normal conditions. Scientists call these phenomena the El Niño-Southern Oscillation (ENSO) cycle. El Niño and La Niña can both have global impacts on weather, wildfires, ecosystems, and economies.
El Niño–Southern Oscillation - Wikipedia
El Niño–Southern Oscillation (ENSO) is a global climate phenomenon that emerges from variation in winds and sea surface temperatures over the tropical Pacific Ocean. Those variations have an irregular pattern but do have some semblance of cycles. The occurrence of …
La Niña’s odd, short life is over. Here’s what could happen to the ...
22 hours ago · El Niño transitioned to neutral conditions shortly before the start of last year’s incredibly active hurricane season. Extremely warm oceans churned out 18 named storms, including 11 hurricanes.
El Niño and La Niña - National Oceanic and Atmospheric Administration
Feb 25, 2025 · What is El Niño? What is La Niña? An El Niño condition occurs when surface water in the equatorial Pacific becomes warmer than average and east winds blow weaker than normal. The opposite condition is called La Niña. During this phase of ENSO, the water is cooler than normal and the east winds are stronger.
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. The pattern shifts back and forth irregularly every two to seven years, bringing predictable changes in ocean temperature and disrupting the normal wind and rainfall ...
What are El Niño and La Niña, and how do they change the weather? - BBC
Apr 16, 2024 · El Niño is part of the natural climate phenomenon called the El Niño Southern Oscillation (ENSO). It has two opposite states: El Niño and La Niña, both of which significantly alter global...
Understanding El Niño - National Oceanic and Atmospheric Administration
Feb 2, 2016 · El Niño is a naturally occurring climate pattern associated with warming of the ocean surface temperatures in the central and eastern tropical Pacific Ocean, which can significantly influence weather patterns, ocean conditions, and marine fisheries worldwide.
La Nina exits after three weak months, leaving Earth in neutral …
21 hours ago · La Nina, the natural cooling flip side of the better-known and warmer El Nino climate phenomenon, has dwindled away after just three weak months WASHINGTON -- See you later La Nina, we hardly knew ...
El Niño | Causes, Effects, Weather, Meaning, & Years | Britannica
The term El Niño, in oceanography and climatology, describes the anomalous appearance, every few years, of unusually warm ocean conditions along the tropical west coast of South America. This event is associated with wide-reaching adverse effects …
What is El Niño? | El Nino Theme Page - A comprehensive Resource
El Niño is an oscillation of the ocean-atmosphere system in the tropical Pacific having important consequences for weather around the globe.