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Super El Niño Looms: Record Heat Ahead?
14 May
Summary
- An 82% chance of El Niño developing between May and July exists.
- A 'super' El Niño could cause global weather extremes.
- New index accounts for global warming in El Niño forecasts.
There is a high likelihood of an El Niño developing between May and July, with forecasts indicating a significant possibility of it becoming a 'super' event. Such a phenomenon could lead to extreme weather patterns across the globe, including severe droughts and destructive floods. The last El Niño in 2023-24 contributed to 2024 becoming the hottest year on record.
Forecasters are particularly focused on understanding the potential peak strength of this emerging El Niño. While an 82% chance exists for its development, only a 37% chance is predicted for it to reach the 'very strong' category. Scientists are using advanced tools like the Relative Oceanic Niño Index (RONI) to better predict El Niño's intensity by accounting for ongoing global warming trends, moving beyond traditional comparison methods.
Experts caution that several factors, including the specific region of ocean warming in the Pacific and the behavior of trade winds, could influence the El Niño's ultimate strength. The period known as the 'spring predictability barrier' is crucial for refining these forecasts. If a super El Niño does manifest, its impacts could range from increased wildfires in arid regions to extensive flooding elsewhere, with potential for long-lasting climate shifts.
