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

8
Articles
8
Unique Sources
16.0
Importance
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Diversity
T1
Top Tier
Snapshot born 1d ago · present at 13 data intervals (1d ago → 21h 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.
10 0 Oct 08 16:15 UTC — 8 articles · 8 sources · importance 16.0 · tone -2.6 · shares 4 with viewedtone -2.6Oct 09 01:45 UTC — 7 articles · 7 sources · importance 15.0 · tone -3.0 · shares 4 with viewedtone -3.0Oct 09 02:15 UTC — 9 articles · 9 sources · importance 17.0 · tone -2.8 · shares 6 with viewedtone -2.8Oct 09 04:30 UTC — 10 articles · 10 sources · importance 18.0 · tone -2.7 · shares 7 with viewedtone -2.7Oct 09 07:30 UTC — 9 articles · 9 sources · importance 17.0 · tone -2.6 · shares 7 with viewedtone -2.6Oct 09 07:45 UTC — 8 articles · 8 sources · importance 12.0 · tone -3.0 · shares 5 with viewedtone -3.0Oct 09 11:45 UTC — 8 articles · 8 sources · importance 16.0 · tone -2.8 · shares 7 with viewedtone -2.8Oct 09 14:00 UTC — 9 articles · 9 sources · importance 17.0 · tone -2.7 · shares 8 with viewedtone -2.7Oct 09 15:00 UTC — 8 articles · 8 sources · importance 16.0 · tone -2.5 (viewing)tone -2.5Oct 09 18:15 UTC — 7 articles · 7 sources · importance 11.0 · tone -2.4 · shares 7 with viewedtone -2.4Oct 09 20:00 UTC — 6 articles · 6 sources · importance 6.0 · tone -2.9 · shares 5 with viewedtone -2.9Oct 09 20:45 UTC — 7 articles · 7 sources · importance 7.0 · tone -2.8 · shares 5 with viewedtone -2.8Oct 09 21:15 UTC — 8 articles · 8 sources · importance 8.0 · tone -2.7 · shares 5 with viewedtone -2.7Oct 09 23:15 UTC — 8 articles · 8 sources · importance 8.0 · tone -2.3 · shares 5 with viewedtone -2.3Oct 10 05:15 UTC — 9 articles · 8 sources · importance 9.0 · tone -2.1 · shares 5 with viewedtone -2.1Oct 10 07:00 UTC — 8 articles · 7 sources · importance 8.0 · tone -2.1 · shares 5 with viewedtone -2.1 Oct 08 16:15 Oct 10 15:30 UTC
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Public Discourse · Bluesky · this story as of 13m ago
126 distinct posts / 48h, matching California 139 Kelvin 17
WhenPostTone
14h ago So, there's gonna be like 9' of surf in Encinitas hitting with a mild-ish high tide and probably some real storm surge, and the thing is the tides are already running more than a foot over predicti… -1.0
15h ago Blue sky flooding in Newport Beach, CA. Welcome to climate change. Record El Nino, Kelvin Wave, and any storm surge or high/king tide = floods for the next 3-4 months. -6.0
15h ago here, because we already lost an entire beach (Tamarack) a few weeks back and we aren't getting a lot of warning about flooding from local officials. Everybody has seemed tremendously unconcerned a… -6.0
15h ago We’ve got Rachel, Kelvin, Simon & Isaias. Panama Canal probably gone due to a 7.7. Mother Nature is clearly pissed at Trump. It is fucking Mambo No. 5. -4.5
17h ago This Weekend, an El Niño-Driven ‘Kelvin Wave’ Will Raise Bay Area Sea Levels and Flooding Risk “We’re just beginning to see the first increases in sea levels. By the end of the weekend, we should … -2.5
17h ago It’s kind of crazy that there’s like, no beaches in SoCal right now due to the kelvin wave and the coastal flooding from the hurricanes. The beach is basically whatever street happens to be closest… -2.0
21h ago Had a California equivalent to a “snow day” because of El Niño Balboa Boulevard was under water throughout most of the peninsula Long underwater Kelvin waves and the oncoming storm surge caused h… ×2 -2.0
23h ago Kelvin wave has increased sea levels by 8-12 inches + an offshore hurricane pushing 4-6 foot waves = flooding I’ve not seen in my 30+ years living here. Supposed to get an inch of rain on Sunday t… -5.0
1d 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
1d 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
1d 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
1d 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
1d 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
2d 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
20m ago Southern California is bracing for potentially severe weather this weekend as Tropical Storm Rachel could bring heavy rain, strong winds, dangerous surf, and flooding to San Diego and Orange counti… -2.5
31m ago California is now ground zero for tropical storms as Super El Niño has shifted the climate so much that former Hurricane Rachel will barrel through San Diego, Las Vegas and Phoenix bringing nasty c… -6.0
43m ago Crazy how there's near to no national news about this. Or the flooding in California. Or yesterday's earthquake. Or pretty much any weather update we used to get before 2025. -4.5
1h ago Rising tides, flooding herald Rachel’s arrival Oct. 9, 2026 Hannah Fry and Rong-Gong Lin II www.latimes.com/california/s... -4.0
1h ago Article: [1/2] Hurricane Isaias continues to strengthen in the Gulf of America after becoming the first hurricane of the 2026 Atlantic hurricane season. At the same time, the remnants of Hurricane… -2.0
1h ago We have an update on the remnants of Hurricane Isaias, as it spreads heavy rain and the potential for tornadoes across the Southeast. Also, another look at Rachel, which is already impacting Southe… -3.0
1h ago This is the National Climate Change Warning Center: Marine hurricane warnings southwest of the extreme Southern California Coast. Fire possible from NV to CA and in Upper MI. Severe storms possible… -2.0
1h ago Tropical Storm Rachel could bring tropical storm-force winds, heavy rain and flooding concerns to parts of Southern California this weekend. -2.5
2h ago Hurricane Rachel has petered out to a tropical storm. It kissed us goodbye. Newport Beach, California. www.youtube.com/shorts/KgvAG... +2.5
2h ago Damn, it’s like 5 am in Calif. Let us wake up and wade through coastal flooding to get to our devices. (It’s California people. Like 1 in 7 blue voted at least.) -3.0
3h ago "Rising tides, flooding herald Rachel's arrival" By @hannahfry.bsky.social & Rong-Gong Lin II Los Angeles Times — Saturday 10 October 🌍 Focuses on coastal preparations and initial local impacts a… -4.0
3h ago Where is he expecting abundant water to come from in California? Even in non-drought years there's not a surplus of water. -2.5
3h ago 'Tropical Storm Rachel has prompted rare watches in S California, & is forecast to sweep into the SW bringing flooding rain, strong wind gusts & enhancing coastal flooding to cities like San Diego … -4.5
3h ago Fire restrictions lifted in Northern California forests #Wildfires #Drought #Storms #Rain #Snow #Mudslides #FEMA #California #CalFire #LosAngeles #SanFrancisco #NorthwestUS #WashingtonState #Canada… +3.5
4h ago Tropical Storm Rachel may strengthen unusually over abnormally warm waters and bring tropical-storm-force winds and damaging coastal flooding to Southern California this weekend. ×3 -3.0
5h ago Tropical Cyclone Local Statement issued October 10 at 2:40AM PDT by NWS San Diego CA HLSSGX This product covers EXTREME SOUTHWESTERN CALIFORNIA **Tropical Storm Rachel Will Bring Coastal Floodin… -3.0

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 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
T3 El Niño: New forecasts show high chances for California rainfall at 150%-200% of normal this winter 📄 weather_forecast pressdemocrat.com hopeful, relieved, expectant
-2.0
anticipation
T3 El Niño: New forecasts show high chances for California rainfall at 150%-200% of normal this winter 📄 weather_forecast marinij.com hopeful, relieved, cautious
-2.0
anticipation