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The planetary wave headed for California isn’t what you think it is
·1 min read
Key Takeaway
A rather strong "planetary wave" recently slammed into South America and is making its way toward California. In case you're worried about headlines warning of the supposedly "freak" phenomenon "bringing trouble," it's worth understanding what this wave really is and isn't.
Published October 6, 2026 · Category: Tech
Overview
An aerial view of equipment moving fresh sand during an emergency replenishment project along eroding shoreline at North Beach on August 15th, 2024, in San Clemente, California. | Photo: Getty Images
A rather strong "planetary wave" recently slammed into South America and is making its way toward California. In case you're worried about headlines warning of the supposedly "freak" phenomenon "bringing trouble," it's worth understanding what this wave really is and isn't.
Called a Kelvin wave, it's carrying warm water to the Americas that's typically trapped farther west. That's raising sea levels along already vulnerable coastlines. These kinds of waves are common. When they do arrive, they can exacerbate existing problems. And this particular Kelvin wave could have more dramatic consequences than usual.
What is "The planetary wave headed for California isn’t what you think it is" about?+
A rather strong "planetary wave" recently slammed into South America and is making its way toward California. In case you're worried about headlines warning of the supposedly "freak" phenomenon "bringing trouble," it's worth understanding what this wave really is and isn't. Called a Kelvin wave, it's carrying warm water to the Americas that's typically trapped […]
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