See how this 9,000-mile freight train of warm water may fuel a super El Niño

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🗞️ Driving the news: A massive undersea Kelvin wave, carrying Pacific waters up to 7.5°C above average, is traversing 9,000 miles toward South America
• This wave could trigger a super El Niño later in 2026, potentially surpassing the intensity of the 1997-98 event and influencing global climate patterns into 2027

🔭 The context: Kelvin waves form when trade winds weaken or reverse, pushing warm water from the West Pacific Warm Pool eastward
• Recent La Niña events, record-warm oceans, and a 5,000-mile North Pacific heatwave have amplified this year's wave
• As it reaches the equatorial Pacific, it disrupts the thermocline and upwelling, warming surface waters and altering atmospheric circulation

🌍 Why it matters for the planet: A strong El Niño can intensify global droughts, floods, heatwaves, and humidity extremes
• Shifts in West Pacific thunderstorms affect jet streams and high- and low-pressure systems worldwide, raising the likelihood of record-breaking temperatures and atmospheric moisture in 2027

⏭️ What’s next: Scientists will monitor Niño 3.4 and other key regions to estimate El Niño strength
• Forecasts remain uncertain, but emergency preparedness for extreme weather, food security, and water management will be critical as atmospheric responses unfold

💬 One quote: “The reason why that matters so much is because what happens in the tropical Pacific doesn’t stay in the tropical Pacific.” – Daniel Swain, climate scientist

📈 One stat: Ocean waters in parts of the deep Pacific are currently 7.5°C above average, an anomaly comparable to the 1997 super El Niño precursor

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