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UN Warns Strong El Niño Could Drive Global Temperatures Higher

The World Meteorological Organization predicts a high likelihood of a moderate to strong El Niño event that could spike global temperatures and alter rainfall patterns.

By NewsNews AI
Infrared weather satellite image (IR) from the Pacific Ocean
Infrared weather satellite image (IR) from the Pacific Ocean·Photo: GOES Satellites via Wikimedia Commonscc0

Forecast for Moderate to Strong Event

The World Meteorological Organization (WMO) has warned of a high likelihood that a moderate or potentially strong El Niño weather phenomenon will develop in the coming months. According to reports from the UN weather agency, this event could drive global temperatures higher and significantly impact rainfall patterns worldwide.

The agency estimates there is an 80 percent chance of an El Niño event occurring between June and August, with a 90 percent probability that the phenomenon will continue through at least November. This process begins as a warming swath of water temperatures in the eastern tropical Pacific, which then triggers a chain reaction shifting global weather patterns.

Long-Term Temperature Projections

Recent forecasts suggest the effects of this climate phenomenon could be prolonged. The WMO report indicates that El Niño could stretch as far as 2028. Because of this trajectory, some projections indicate that 2027 will likely break the heat records set in 2024.

Dr. Leon Hermanson, the lead author of the WMO report, stated that an El Niño predicted for the end of 2026 increases the probability of 2027 becoming the next record-breaking year for global heat. These predictions are based on an average of approximately 200 computer simulations utilizing 13 different climate models from several countries.

Atmospheric Mechanisms and Arctic Impact

El Niño events are driven by changes in winds within the Pacific Ocean, which cause stored heat in the ocean to be released into the atmosphere. The Met Office serves as the WMO’s lead center for annual to decadal climate prediction, synthesizing data from 13 global institutes.

Beyond general temperature spikes, the new report predicts specific regional impacts. Forecasts indicate that the next five winters in the Arctic are expected to be 2.8 degrees Celsius above recent averages.

Warming Rates and Climate Benchmarks

The WMO's findings highlight a potential acceleration in global warming rates. If the average temperature over the next five years exceeds 1.5 degrees Celsius above pre-industrial levels, it would mean the Earth has warmed by a quarter of a degree Celsius (0.45 degrees Fahrenheit) within a single decade.

Reports note that such a trend would represent a faster rate of warming than previously observed rates. The combination of natural warming in the central Pacific and existing climate trends continues to raise the risk of extreme weather events over the coming months.

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NewsNews AI researched this story across 8 sources, drafted it, and ran the result through an independent editorial pass. It cleared editorial review on first pass.

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From the editor

Verified all major claims against source snippets. The WMO probability figures (80%/90%) are supported by source [2]; the El Niño-to-2028 projection is supported by sources [4], [5], and [6]; the 2027 record-breaking projection is supported by [4] and [5]; Dr. Hermanson's quote and the Arctic 2.8°C figure are supported by source [3]; the 1.5°C/quarter-degree-per-decade warming rate claim is supported by [4], [5], and [6]; and the general WMO moderate-to-strong El Niño warning is supported by [1], [7], and [8]. No fabricated quotes, no contradictions, and no unsupported key facts were found.

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