Are We In El Nino Or La Nina 2025. La Niña climate pattern is officially over. But El Niño may already be on its way So, the big El Nino in 2023/24 might suggest a lean toward a two-year La Nina Historical El Niño and La Niña Episodes Based on the ONI computed using ERSST.v5
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ENSO (El Niño-Southern Oscillation)-neutral simply means the ocean is neither unusually warm (El Niño) nor unusually cool (La Niña). Latest forecasts from WMO Global Producing Centres of Long-Range Forecasts indicate a 55% likelihood of a transition from the current neutral conditions (neither El Niño nor La Niña) to La Nina conditions during December 2024 to February 2025
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The return of the ENSO-neutral conditions is then favored during February-April 2025, with about 55% chance. This is a new index and it's something we are reviewing for the future Big El Ninos generally lead to big heat discharge and a longer period for the heat to build back up in the tropics, leading to multi-year La Ninas
La Niña climate pattern is officially over. But El Niño may already be on its way. La Niña conditions continued this past month, as indicated by the below-average sea surface temperatures (SSTs) across the central and east-central equatorial Pacific Ocean [Fig The agency says that there is a 60 per cent chance conditions will shift back to what scientists call an ENSO-neutral temperature range during March-May 2025, increasing to 70 per cent for April-June 2025
La Niña expected this summer. How it may impact 2024 hurricane season. Explore how El Niño and La Niña impact global weather patterns in 2025 La Niña is the cool phase of the El Niño/Southern Oscillation, or ENSO, a pattern of changes in the tropical Pacific Ocean and the atmospheric circulation over the tropical Pacific that persists for many months.