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ARCHIVED · 1 LEFT · 1 CENTER · 1 RIGHT · Oct 4, 1:55 AM

Mostly Same

What to know about the Kelvin wave raising the sea level along the West Coast

Sea levels along the West Coast will begin to rise by up to a foot this month as a series of pulses of warm water called Kelvin waves hit the shoreline and move north, sparking concerns about beach erosion and flooding in areas already impacted by climate change and El Niño.

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This is a stored Optics snapshot.It preserves the source map and wording analysis from 10/4/2026, 1:55:41 AM.

30-SECOND READ

What happenedWhat to know about the Kelvin wave raising the sea level along the West Coast.
What changedThe headlines are mostly aligned. The differences are small wording choices, not a major framing split.
ConfidenceLow. The source map includes different article formats, so wording may reflect format as well as framing.
Archive healthDeveloping · related angle

WORDING GAP

0WORDING GAP

3 sources · 3 bias buckets · Low confidence

Developing comparison. The source map includes different article formats, so wording may reflect format as well as framing.

SOURCE MAP TIMELINE

Oct 3, 7:43 PM: The Washington Times joined the source map.

Oct 3, 7:45 PM: PBS NewsHour joined the source map.

Oct 4, 12:02 AM: KCRA3 Sacramento (Hearst) joined the source map.

Now: score hidden until the source match is cleaner. Story health is developing · related angle.

Flagged: article formats differ, so wording may reflect format as well as framing.

ARCHIVED SOURCES

Center ·Analysis

What to know about the Kelvin wave raising the sea level along the West Coast

Sea levels along the West Coast will begin to rise by up to a foot this month as a series of pulses of warm water called Kelvin waves hit the shoreline and move north, sparking concerns abo...

Open source
Center-left ·Analysis

What to know about the Kelvin wave raising the sea level along the West Coast

Kelvin waves are not like tsunamis, and they don't curl over and crash on the beach. A better image is water sloshing in the bathtub or a swimming pool during an earthquake. In the ocean, t...

Open source
Center-right ·Analysis

What to know about the Kelvin wave raising the sea level along the West Coast

Sea levels along the West Coast will begin to rise by up to a foot this month as a series of pulses of warm water called Kelvin waves hit the shoreline and move north, sparking concerns abo...

Open source