According to published reports, forecasters are concerned over the current switch from El Niño to La Niña in weather patterns.
When ocean temperatures were recorded warm during last year's hurricane season, vertical wind shear over the Atlantic, created by shifting winds from El Niño in the Pacific Ocean, likely put a damper on at least some of the potential hurricane activity.
The season still wound up busier than average with seven hurricanes and 20 named storms, the fourth most active season on record. This year, with that protection gone as the weather pattern likely shifts to a La Niña, which reduces wind shear over the Atlantic, seasonal hurricane forecasters fear the worst.
Warmer-than-normal ocean temperatures also contribute to massive bleaching on the world's coral reefs and are thought to play a role in the increase of sargassum seaweed mats that blanket and stink up beaches and in harmful algal blooms and fish kills. Experts also say warmer water temperatures in the Gulf are enhancing the moisture available for storms and helped contribute to the increase in tornado activity this spring.
La Niña switch is expected to fuel extreme weather later this year
Chances rising of a swing in Pacific currents and knock-on effects of ocean cooling phase, warns UN agency
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