Super El Niño threatens global flooding

Scientists warn Super El Niño could raise sea levels by 40cm, causing widespread coastal flooding.

Oct 20, 2026

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Super El Niño threatens global flooding

Scientists warn Super El Niño could raise sea levels by 40cm, causing widespread coastal flooding.

In brief

Scientists warn Super El Niño could raise sea levels by 40cm, causing widespread coastal flooding. Super El Niño may temporarily raise Pacific sea levels by 40cm, risking severe coastal flooding across North and South America. Originally reported by LADbible.

Super El Niño warning

Super El Niño warning

Scientists warn El Niño could cause dramatic ocean rise leading to widespread flooding.

Strongest El Niño recorded

El Niño can cause everything from floods to droughts (Getty Stock)

US National Oceanic and Atmospheric Administration predicts 83 percent chance this is strongest El Niño ever recorded.

Sea level impact

Sea levels may rise 40cm in affected regions, with Galapagos Islands seeing 24-40cm increase.

Coastal flooding risk

Coastal flooding could stretch from Alaska to Chile, with highest impact near equator.

Timeline of impact

Homes in Long Beach in California being hit by waves in October 2026 (Eric Thayer / Los Angeles Times via Getty Images)

Sea levels peak between November and December 2026, with effects continuing through 2027.

Extreme weather effects

El Niño causes floods in some areas and droughts in others, with climate change worsening impacts.

The key point

Super El Niño may temporarily raise Pacific sea levels by 40cm, risking severe coastal flooding across North and South America.

Read the original on LADbible

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