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Kelvin wave pulses to raise West Coast sea levels up to a foot, erosion and flood risk
Independent UK·US·3 days ago
Kelvin waves, subsurface oceanic waves, are moving toward the American continent, potentially raising sea levels and intensifying El Niño effects. The phenomenon is part of a known pattern, but its current strength and timing remain uncertain. Coastal impacts could include flooding and ecosystem disruption.
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A series of Kelvin wave pulses are projected to raise sea levels along the US West Coast by up to one foot this month, increasing erosion and flood risk in low-lying coastal communities. This natural oceanic phenomenon is amplified by existing sea-level rise and El Niño effects. The precise timing and magnitude of these pulses remain uncertain.