Kelly Hereid

I'm immediately wondering how many insurance contracts have JTWC written into their wording instead of Australia BoM... suspect we'll find out shortly

Screenshot of JTWC with star next to service advisory

Screenshot of the page with a star by the service advisory www.metoc.navy.mil/jtwc/jtwc.html

SERVICE ADVISORY: The Joint Typhoon Warning Center will institute changes to its Southern Hemisphere tropical cyclone warning frequency and product suite on 05MAR2026. Tropical cyclones within 500NM of Learmonth, Darwin, American Samoa, and Diego Garcia will continue to receive 6-hourly warnings, associated TC product suite, and include a prognostic reasoning message. [highlighted] Southern Hemisphere tropical cyclones outside those four geographical areas will have a 12-hourly warning frequency [/highlighted] and may have an abbreviated prognostic reasoning.

4 circles showing where 6hr JTWC forecasts will continue, outside of these get 12hr forecasts

Service advisory up on JTWC page says that outside of a few circles, southern hemisphere tropical cyclone forecast frequency to be cut in half starting today www.metoc.navy.mil/jtwc/jtwc.html

For those quickly trying to visualize 500nm, whipped up this *very rough* sketch

This is my second for exactly that reason, broke the first one in a move.

In case anyone else needs one (yes you do), a portion of the proceeds go to support the Earth Science Women's Network

In case anyone else needs one (yes you do), a portion of the proceeds go to support the Earth Science Women's Network

NEW ANALYSIS: UK emissions fell 2.4% in 2025 as coal fell to a 400-year low. Incredibly, we used less coal last year than than in 1600, when Queen Elizabeth I was on the throne and Shakespeare was writing Hamlet.

All the details in our article: www.carbonbrief.org/...

My most beloved (hence beat up) coffee cup features this queen 👑⚒️

Pacific Ocean Floor by MARIE THARP, Bruce Heezan, and Heinrich Berann, *as published in* the National Geographic. There, fixed it.😉

Really dig this tool. Not just recommendations, but carefully researched discussions of the strengths and drawback of tech from common to obscure.

Thirty years of glacier grounding line retreat in Antarctica | PNAS The Grounding Line (GL)—the transition from ice grounded on the continent and ice afloat in the ocean—is a sensitive indicator of glacier stability...

A multiple-satellite study of Antarctica’s grounding line area show a loss of 12,820 km2 over the last 30 years. Grounding lines are the contact points where continental ice sheets anchor to the seabed, slowing their flow into the oceans.
www.pnas.org/doi/10.1073/...

#Antarctica #sealevelrise

How Fossil Fuel Disruptions Lead to Booms in Solar and Batteries Past oil crises forced countries to cut fuel use and pay high prices, but now falling prices of clean tech offer another solution.

Past fossil-fuel price spikes left import-dependent countries with two options: pay up or cut fuel use. Now there is an alternative in solar and batteries.

I looked at recent examples in Europe, Pakistan, Cuba to glean what might happen with the war on Iran.

🎁🔗 www.bloomberg.com/news/article...

Her minimum viable scale paper with @jlappen1.bsky.social was incredible, @gruberte.bsky.social can explain transition risk in a way that even a boring insurance person like me can get.

Ok here's a podcast I need to catch IMMEDIATELY

Retired: the terawatt hour (TWh)

Wired: Strait Of Hormuz (SOh)

Usage:

“Last year the world added an entire Strait of Hormuz worth of new solar power generation.”

#energysky

And missing out on beautiful images of hummocky cross-stratification!

...there is literally no way to make that sentence not sound sarcastic, but sedimentology is rad and it's truly their loss.

Climate-chg projections indicate landmasses of the South Pacific (e.g., New Zealand) will be hotspots for among the largest increases in atmospheric rivers. Historical reanalyses show significant increasing (robust & coherent) trends in AR freq over the Southern Ocean.

cw3e.ucsd.edu/cw3e-publica...

Small Bottle, Big Pipe: Quantifying and Addressing the Impact of Data Centers on Public Water Systems Water is a critical resource for data centers and an efficient means of cooling. However, meeting the growing water demand of data centers requires substantial peak water withdrawals, which many commu...

This new pre-print from @renshaolei.bsky.social & others raises a crucial point about data center water usage: While average water usage rates may be fine, peak demand during sizzling periods could cause real strains on regional water systems:

I have to do Career Day at my kids' school, what's a good way to teach them about science? I was thinking of giving them a fun activity and then making them fill out a lot of paperwork before abruptly canceling it

Many State Flood Maps Are Not Up to Date. Connecticut Is Trying to Fix That A new tool offers the public detailed estimates of their flood exposure, but some worry risk disclosure will impact home values.

In troubled times, it's always calming to go back to the basics: How hard flood-mapping is.
From @leslieatlarge.bsky.social and @mrgopal.bsky.social
🎁🔗 www.bloomberg.com/news/feature...

"is powered by the same type of private risk-modeling firm that insurers turn to for setting rates"

?????????

40% of US rail freight is also fossil fuels, mostly coal. Wind coal down and you free up a lot of rail resources! Some of which could be converted to fast electric passenger trains, which in countries with modern transport infrastructure are faster than air travel for most trips under 1000 miles.

👀 new storm events database site at @noaa.gov , and it's not terrible!

Go check out the beta site and break it!

www.ncei.noaa.gov/access/storm...

#TheLensNola🔍 The storm-prone city is making its local utility design a $28 million incentive program to get hundreds more backup batteries into homes and businesses.

✍ Julian Spector, Canary Media

Full story 🔗: buff.ly/EWMokRw

#powerplant #entergyneworleans #batteryincentives

Tsunamigenic rockslide on your desktop?

This is a scaled and simplified model of the 2017 Karrat landslide.

I think it captures the dynamics of the tsunami generation quite well, though it is of course, very simplified.

I think there is not enough appreciation to how good this FT visualization is

the original is like this 👇

"deepest possible learning" 💀

In 2022 (back when #Twitter was still a thing), I had made this #meme about the state of #urban #climate #research based on an #xkcd comic.

With all the recent changes in the #publication and #funding spaces due to the #AI + #machinelearning hype cycle, here is an updated version.

Called out! Hey I'll never complain about a killer new temp dataset

BCD-ME 1° bias-corrected (QDM) temperature time series Time series of daily near-surface mean and maximum air temperature from CMIP6 large ensembles, bias-corrected to four reanalysis products using Quantile Delta Mapping, on a near-global 1° grid

See:
📈 Links to the data: app.earthmover.io/marketplace/... , app.earthmover.io/marketplace/...
📜 Our preprint here for all the details, caveats, etc.: eartharxiv.org/repository/v...
💻 Sample code to access the data natively in xarray: github.com/ks905383/bcd...