@reuters: A so-called “Omega block” weather pattern is driving the intense, slow-moving European heatwave, prompting authorities across the continent to issue heat warnings, a weather analyst said. The pattern is known as an “Omega block” because it resembles the Greek letter omega, with a dome of hot air trapped in the centre and cooler air masses on either side. #heatwave #omegablock #climatechange #europe #weather

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Tuesday 23 June 2026 09:44:09 GMT