Extreme El Niño Could Bring Snowfall and Freezing Cold

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An extremely strong El Niño could weaken the polar vortex, bringing snowfall and arctic cold to Europe in winter.

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According to the first seasonal forecasts, the 2026-2027 winter promises to be milder than average across Europe, significantly influenced by the expected extremely strong El Niño phenomenon. Despite the higher average temperatures, experts warn that the three-month period will not be frost-free, so shorter but intense cold spells and snowfalls should still be expected.

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A record-breaking strong El Niño, above-normal temperatures and lots of precipitation. This is how the upcoming winter of 2026/2027 is shaping up across Europe. But one factor could turn the entire forecast upside down, and meteorologists are watching it particularly closely. It is the polar vortex in the stratosphere, which could bring Arctic cold to Europe, especially in January and February.