Think the gigantic Kelvin wave currently raising sea levels along California, wreaking havoc with erosion, was a one-time visitor? Think again.

According to a new report from NPR, more of these enormous, invisible ocean waves are headed for the West Coast. And that’s potentially bad news for coastal communities already battered by months of relentless surf and erosion.

In fact, scientists say a strong El Niño typically generates five or six Kelvin waves, with several expected to arrive through fall and early winter.

This is what happens when you are dealing with a massive Kelvin wave… pic.twitter.com/hdN11xSecG

— #Anonymous (@TheStripesGirl) October 12, 2026

North Carolina State University atmospheric scientist Dillon Amaya told NPR the next could reach San Diego in late October or early November.

And there are more behind it.

NOAA oceanographer Michael Jacox confirmed that “one or two more” were already traveling through the tropics.

“We’re dealing with a multi-headed monster,” oceanographer Dr. Emily Varon said. “Initially, models suggested a single Kelvin wave would surge up the West Coast this season. But the latest satellite telemetry confirms a much darker reality: a prolonged series of Kelvin waves has decoupled from the equatorial Pacific. There is definitely more to come.”

So, what exactly are these mysterious oceanic giants?

Read More: https://www.yahoo.com/news/science/articles/multi-headed-monster-kelvin-waves-193607618.html