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Powerful El Niño Could Bring Major Weather Impacts Worldwide

Japan's Meteorological Agency has also projected that the event will continue into early 2027, with a significant possibility that it could reach historically strong levels compared with El Niño events recorded since 1950.

Potentially Historic El Niño Takes Shape, Raising Global Weather Risks. Pic via(@washingtonpost)

A potentially historic El Niño is strengthening in the Pacific Ocean, with forecasters warning that the powerful climate pattern could produce significant weather and economic effects across the United States and other parts of the world.

According to the report, the Climate Prediction Center estimates there is more than a 90 percent chance of a very strong El Niño developing during the Northern Hemisphere's fall and winter of 2026-27.

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The report said El Niño occurs when weakening trade winds allow unusually warm ocean water to accumulate across the central and eastern equatorial Pacific. The resulting changes in atmospheric circulation can alter rainfall, temperatures and storm patterns across multiple continents.

Japan's Meteorological Agency has also projected that the event will continue into early 2027, with a significant possibility that it could reach historically strong levels compared with El Niño events recorded since 1950.

However, forecasters caution that the exact strength and regional effects remain uncertain.

The potential consequences extend beyond weather. According to the report, the World Food Programme has warned that a severe El Niño could contribute to acute food insecurity for nearly 49 million people in vulnerable regions by the end of next year.

Agricultural forecasters expect the event to reach its strongest point toward the end of 2026 before gradually weakening during the winter and spring.

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