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The 'Kelvin wave' hitting California is a potent warning about sea-level rise

9
Articles
9
Unique Sources
17.0
Importance
9.0
Diversity
T1
Top Tier
Snapshot born 7h ago · present at 9 data intervals (7h ago → 5h ago)

Story History

The story across its frozen snapshot generations (each shares ≥ half of this snapshot's articles). ─ articles · ─ sources · squares = generation births, sized by importance (outlined = open that snapshot; filled = this one) · baseline band = intervals the story was live · ticks below = each generation's tone.
Born Articles Sources Importance Shared with this snapshot
2h ago 8 8 12.0 5
2h ago 9 9 17.0 8
5h ago 10 10 18.0 9
8h ago 7 7 15.0 7
17h ago 8 8 16.0 7
19h ago 7 7 15.0 6
1d ago 6 6 10.0 5
Public Discourse · Bluesky · this story as of 6m ago
106 distinct posts / 48h, matching California 126 Kelvin 25
WhenPostTone
12h ago Stay safe, SoCal! El Niño-driven T.S. Rachel x Kelvin wave elevated sea levels = dangerous coastal conditions this weekend in Southern California. High surf and coastal flooding risks will peak o… ×2 -1.5
16h ago www.latimes.com headline change https://www.latimes.com/california/story/2026-10-08/hurricane-rachel-kelvin-wave-combine-for-coastal-dangers-what-to-know New text is now Hurricane Rachel, Kelvin… ×2 -4.0
17h ago misleading photo on that article -- Kelvin waves don't do that on their own, but they *can* make storm surge effects worse if a storm happens to be in progress at the time +1.5
17h ago One other uncertain but potentially significant impact is potential for worsened coastal flooding in SoCal due to combo of high surf, minor storm surge from Rachel (low pressure+onshore winds), & p… -2.5
17h ago Hurricane Rachel and Kelvin Waves combine to create coastal dangers: What to know Hurricane Rachel, currently raging in the Pacific, is expected to increase the risk of coastal flooding in Souther… ×8 -3.0
18h ago AND currently -- hurricane Rachel is on approach to Southern CA (likely downgraded to a tropical storm as it reaches us) and will combine with a Kelvin wave event to bring rain, winds, and more coa… -3.0
19h ago LA Times Hurricane Rachel, Kelvin wave combine to bring rain, winds, coastal dangers to Southern California. What to know for the weekend via LA Times ×4 -3.0
20h ago A Kelvin wave from the current El Niño is expected to drive record-high sea levels and coastal flooding in California, signaling future climate-change impacts. ×6 -4.0
20h ago Hurricane Rachel and an El Nino Kelvin wave are expected to raise Southern California sea levels, increasing coastal flooding and beach erosion risk through Sunday. ×6 -3.5
20h ago Hurricane Rachel, Kelvin wave combine to bring rain, winds, coastal dangers to SoCal -3.0
20h ago Hurricane Rachel, Kelvin wave combine to bring rain, winds, coastal dangers to SoCal https://ift.tt/PvbwHOR -4.0
1d ago Kelvin waves: Will El Niño bring coastal flooding to American west? El Niño could soon trigger coastal flooding along the western coast of North America, through Kelvin waves. But what are Kelvin … -1.0
1d ago A coastally trapped Kelvin wave is expected to raise Southern California sea levels by 6 to 12 inches for months, worsening flooding when storms or high tides coincide. ×6 -5.5
1d ago El Nino Kelvin waves are expected to raise West Coast sea levels by up to 1 foot, increasing coastal erosion and flooding risks for humans and marine wildlife. ×2 -4.5
21m ago The state of California will be one of the ground zeros of Hyper El Nino driven extreme weather Prospects are looking grim for the rest of the year and 2027 www.theguardian.com/environment/... —
2h ago #WBC issues Short Range Forecast Discussion (PMD) at Oct 9, 3:50 AM EDT ...The recent heatwave over much of California coming to an end as a major pattern change occurs over much of the West... Link ×2 +4.0
2h ago The looming power and beauty of a forest fire. Its like looking up at Godzilla. Thankfully, no one was killed and no human homes were burnt. Possible cause was 'idiots with fireworks during a heat … -2.0
6h ago Rains from the storm will douse Southern California starting late Saturday, with inland flooding and severe weather likely through Arizona. ×10 -3.0
6h ago God I feel for Baja California… what is this like the third or the fourth hurricane to sweep across some part of the region? -3.0
7h ago NOAA says Pacific temperatures have reached the threshold for a “very strong” El Niño, with an 83% chance the event will set a record among El Niños observed since 1950. Forecasts point to a wetter… -1.0
7h ago After October heat wave, Southern California braces for rain, flooding and high surf -1.5
7h ago Port St. Lucie, Florida floods after heavy rain. "Drone footage captured severe flooding near Savona and California boulevards, showing streets covered in water after the afternoon rain. Some vehic… -4.5
9h ago 140,000 Batteries Discharged 580MW in California Heatwave Score 7/10 · Medium · 3 days -2.0
10h ago Oh I'm aware... yes! 🤗 and Southern California doesn't need another hurricane tsunami wave incident.. but Rachel is on her way.. just rain this time, hopefully! +0.5
12h ago 🥵 Highs are forecast near 107°F in Palm Springs and 106 in El Centro on Thursday, and the Extreme Heat Warning for the desert runs through Friday evening. Showers and storms are forecast to reach S… -2.0
12h ago Southern California’s latest heat wave couldn’t be breaking at a better time—just in time for two of Pasadena’s biggest parties. After Friday night’s ArtNight 2026, the city welcomes the public to … +4.5
12h ago After days drifting harmlessly out to sea, Hurricane Rachel is now bending back toward Baja and Southern California with dangerous surf and flooding risk. Read more in the comments. -5.0
13h ago Tropical Storm Rachel could hit California — actually. Squalls and torrential rains are possible in the Mojave Desert. Arizona has a legitimate tornado risk. @matthewcappucci.bsky.social has an u… -1.0
13h ago The Atlantic went four months without a hurricane. The first formed this morning, headed for the Gulf. Isaías went from depression to hurricane in a day, over the warmest Gulf water on record. AN… -3.0
13h ago #WBC issues Short Range Forecast Discussion (PMD) at Oct 8, 3:58 PM EDT ...Substantial cooling is on the way as a major pattern shift finally breaks the prolonged October heatwave across central an… ×2 +4.0

Articles in Story

Tier Title Category Source Feeling SentimentSentiment Score (-5 to +5)
LLM-assessed emotional tone of coverage.

-5 = extremely negative/alarming
0 = neutral/factual
+5 = extremely positive/hopeful

The colored bar shows position on the scale. Emotion badge uses Plutchik's 8 primary emotions: joy, trust, fear, surprise, sadness, disgust, anger, anticipation.
T1 El Niño-fueled Kelvin wave in Southern California: What it means 📄 weather_impact latimes.com curious, attentive, cautious
-3.1
anticipation
T1 The 'Kelvin wave' hitting California is a potent warning about sea-level rise weather_flooding scientificamerican.com uneasy, foreboding, urgent
-1.1
fear
T3 Kelvin waves: Will El Niño bring coastal flooding to American west? weather_forecast earthsky.org wary, watchful, uncertain
-1.5
anticipation
T3 Record-Breaking El Niño Threatens To Unleash Catastrophic Storms Across California This Winter ⚖ Contested weather_severe_storm foreignpolicyjournal.com catastrophic, alarming, urgent
-3.4
fear
T3 El Niño Kelvin Wave Begins Moving Up the California Coast as Late-October High Tides Approach 📄 weather_flooding natureworldnews.com tense, watchful, concerned
-4.0
anticipation
T3 Kelvin wave hitting Southern California: What to expect as El Niño threatens the coast again 📄 weather_forecast hanfordsentinel.com watchful, curious, wary
-3.2
anticipation
T3 L.A. County warns of more than 90% chance of Strong El Niño weather_forecast el-balad.com alert, expectant, cautious
-4.6
anticipation
T3 El Niño: New forecasts show high chances for California rainfall at 150%-200% of normal this winter 📄 weather_forecast mercurynews.com hopeful, relieved, cautious
-2.0
anticipation
T3 El Niño: New forecasts show high chances for California rainfall at 150%-200% of normal this winter 📄 weather_forecast eastbaytimes.com hopeful, wary, expectant
-2.0
anticipation