Kelvin wave threatens California coast with up to a foot of sea level rise

A slow-moving band of warm Pacific water is expected to reach California by October, potentially raising sea levels by a foot and doubling coastal flooding risks as El Niño intensifies storm surge hazards.

First covered Sep 28, 2026 · 4:00 AM PT · 3 articles · no longer in the live window

Kelvin wave threatens California coast with up to a foot of sea level rise — Image via theguardian.com

Coverage

44d Guardian Environment California rushes to prepare for massive ‘Kelvin’ wave and predicted sea level rise — Wave nearing southern California expected to reach San Francisco Bay Area by October as it crawls toward Alaska Communities across California are rushing to…

44d CleanTechnica Kelvin Wave In Pacific Ocean Heads Toward California — The way water moves in the world’s oceans is affected by a number of factors. We know the tides are primarily influenced by the gravitational pull of the moon,…

46d Guardian Environment Concern mounts over slow-moving, planetary-scale ‘kelvin’ wave heading for California — The ocean phenomenon could raise sea levels by up to a foot as El Niño keeps warm water trapped along the coast Concerns are mounting about an ocean phenomenon…

Primary sources

cpc.ncep.noaa.gov Climate Prediction Center: ENSO Diagnostic Discussion

More coverage from around the web

surfer.com What Is a Kelvin Wave? How It Could Impact Sea Levels, Surfing - Surfer

yahoo.com Massive 'Kelvin wave' headed for California. Here's what it could mean

geo.tv Kelvin wave 2026 explained: What it is, how it forms, why California should prepare | Viral - geo.tv

sundayguardianlive.com Kelvin Wave 2026: A Massive Ocean Surge Is Heading Towards California, Could It Worsen El Niño Flooding This Winter?

patriotla.iheart.com Kelvin Wave Could Lift California Sea Levels By a Foot | The Patriot KEIB AM 1150 | undefined

Appeared in: 2026-09-29 (#9) · 2026-09-30 (#15)

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