More signs El Niño set to impact Australia over winter
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Fresh data suggests an El Niño is forming in the Pacific, increasing the chance of a warmer and drier winter across much of Australia.
According to Weatherzone, ocean temperatures in the tropical Pacific have risen in recent weeks. Seas warmed by 0.5°C over the past two weeks, including a 0.3°C jump in just seven days.
El Niño occurs when ocean waters become unusually warm, disrupting typical weather patterns. Forecasters say this year’s event could be particularly strong, possibly reaching “super” levels. However, conditions need to persist for several more months before it is officially declared.
Atmospheric signals are also starting to align. The Southern Oscillation Index (SOI), which tracks air pressure changes, has dropped below key thresholds. At the same time, trade winds in the Pacific are weakening another early indicator.
If El Niño develops, eastern Australia typically sees less rainfall and higher temperatures during winter and spring. This can increase the risk of drought, reduce snow levels in alpine areas, and shorten the ski season. Cooler mornings are also possible due to clearer skies.
Despite these signs, experts stress the outlook is not certain. Even a strong El Niño does not guarantee major impacts, and conditions can still shift in the months ahead.
Source : 9 News
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