A powerful underwater wave, known as a Kelvin wave, has surged up the West Coast, causing noticeable rises in sea levels along the shoreline. Researchers attribute the phenomenon to the influence of El Niño, a climate pattern that alters ocean temperatures and weather systems. Experts warn that similar waves are expected to recur, potentially bringing further changes to coastal regions. The development could have implications for tides, marine ecosystems, and coastal communities.


A large underwater wave moved up the West Coast, raising sea levels. Scientists say it's driven by El Niño and it's going to happen again.