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 …
What are El Niño and La Niña, and how do they change the weather?
Apr 16, 2024 · Global temperatures typically increase during an El Niño episode, and fall during La Niña. El Niño means warmer water spreads further, and stays closer to the surface. This …
El Niño & La Niña (El Niño-Southern Oscillation) - NOAA …
Apr 10, 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.
What is El Niño and how does it affect the weather?
Mar 21, 2023 · The El Niño pattern has an impact on the number of tropical systems that can develop during the Atlantic hurricane season, and it can also influence weather events during …
El Niño - NASA Science
Sep 25, 2025 · What is not a mystery is that El Niño is one of the most important weather-producing phenomena on Earth, a "master weather-maker," as author Madeleine Nash once …
El Niño and La Niña Explained: How Climate Cycles Drive Extreme …
6 days ago · El Niño and La Niña shape global weather, driving floods, droughts, and economic losses. Understanding climate cycles helps forecast disasters and protect crops.
El Niño/La Niña Information - National Weather Service
High winds and snowfall may create whiteout conditions across the Northern Plains. Critical fire weather conditions are possible in the Central/Southern Plains. An atmospheric river will …
El Niño Explained: Understanding the Forces Shaping 2023-24 Winter Weather
Oct 16, 2023 · El Niño, Spanish for “little boy,” is a climate pattern that involves the unusual warming of surface waters in the eastern Pacific Ocean. As opposed to short-term weather …
El Niño / La Niña - World Meteorological Organization
Dec 4, 2025 · El Niño and La Niña typically develop in northern hemisphere’s spring-summer and peak in winter. The oscillation between ENSO warm phase (El Niño) to neutral or cold (La …
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 …