Tim Raupach
@timraupach.com
Scientia Senior Lecturer at UNSW Sydney Institute for Climate Risk and Response. I study severe storms, especially hail, in a changing climate ⛈️. I also take photos and climb mountains. These views are my own. https://timraupach.com
Queensland’s had a rough run of storms with giant hail recently - I talked with ABC news about them. www.abc.net.au/news/2025-11...
'Unusually active': Ten giant hail warnings for SEQ this storm season
The region has been hit by another round of storms which brought large and even giant hailstones. Is this the new normal?
www.abc.net.au
November 25, 2025 at 9:54 PM
Queensland’s had a rough run of storms with giant hail recently - I talked with ABC news about them. www.abc.net.au/news/2025-11...
More big hail across SE Queensland yesterday, with hailstones up to 14 cm. www.abc.net.au/news/2025-11...
90,000 households still without power after giant hail and fierce winds
About 90,000 households remain without power after giant hailstones, destructive winds and intense lightning lashed south-east Queensland, with more extreme weather on the way.
www.abc.net.au
November 24, 2025 at 10:31 PM
More big hail across SE Queensland yesterday, with hailstones up to 14 cm. www.abc.net.au/news/2025-11...
We’re coming to the end of a big week
of storm science as #ECSS2025 wraps up. Here Boris Blanc presents his work on interannual variability in hailstorms in Australian cities. Boris is doing a PhD with me at UNSW. An impressive audience present for the last session!
of storm science as #ECSS2025 wraps up. Here Boris Blanc presents his work on interannual variability in hailstorms in Australian cities. Boris is doing a PhD with me at UNSW. An impressive audience present for the last session!
November 21, 2025 at 11:26 AM
We’re coming to the end of a big week
of storm science as #ECSS2025 wraps up. Here Boris Blanc presents his work on interannual variability in hailstorms in Australian cities. Boris is doing a PhD with me at UNSW. An impressive audience present for the last session!
of storm science as #ECSS2025 wraps up. Here Boris Blanc presents his work on interannual variability in hailstorms in Australian cities. Boris is doing a PhD with me at UNSW. An impressive audience present for the last session!
Australia will walk away from hosting #COP31 in a compromise in which Australia takes the presidency role and the Pacific hosts a pre-COP event. @wesmorgan.bsky.social explains what happened, the broader context, and what comes next. This is an important read. theconversation.com/australia-ha...
Australia has dropped its bid to host the COP31 climate talks. Here’s what happened – and what’s next
After a three-year push to host the 2026 climate talks with the Pacific, Australia has backed down. The news is disappointing – but there’s a small silver lining.
theconversation.com
November 20, 2025 at 5:21 PM
Australia will walk away from hosting #COP31 in a compromise in which Australia takes the presidency role and the Pacific hosts a pre-COP event. @wesmorgan.bsky.social explains what happened, the broader context, and what comes next. This is an important read. theconversation.com/australia-ha...
Had a great poster session at #ECSS2025 with plenty of fruitful discussions. Tanya Patel, who I’m supervising for a PhD, presented her work on land-ocean lightning contrast in the Australian tropics. I showed downscaling-based hail size projections for Australian cities.
November 18, 2025 at 4:08 PM
Had a great poster session at #ECSS2025 with plenty of fruitful discussions. Tanya Patel, who I’m supervising for a PhD, presented her work on land-ocean lightning contrast in the Australian tropics. I showed downscaling-based hail size projections for Australian cities.
I’m very happy to be in Utrecht, The Netherlands, for the 12th European Conference on Severe Storms #ECSS2025 run by @essl-ecss.bsky.social and supported by @knmi.nl and @eumetsat.int. Here, @pietergroenemeijer.bsky.social opens the conference. Lots of exciting science to discuss this week!
November 17, 2025 at 8:36 AM
I’m very happy to be in Utrecht, The Netherlands, for the 12th European Conference on Severe Storms #ECSS2025 run by @essl-ecss.bsky.social and supported by @knmi.nl and @eumetsat.int. Here, @pietergroenemeijer.bsky.social opens the conference. Lots of exciting science to discuss this week!
Storm development over Sydney yesterday
November 8, 2025 at 10:31 PM
Storm development over Sydney yesterday
Some footage from the recent hailstorms in southern Queensland, and the cleanup after. www.youtube.com/watch?v=xrPR...
Giant sized hail damages homes, cars, properties as southern Queensland faces more storms | ABC News
YouTube video by ABC News (Australia)
www.youtube.com
November 3, 2025 at 10:29 PM
Some footage from the recent hailstorms in southern Queensland, and the cleanup after. www.youtube.com/watch?v=xrPR...
Nasty damage from hail in SE Queensland yesterday. People were injured, and the hail smashed solar panels, windows, cars etc. Some people remain without power. www.abc.net.au/news/2025-11...
'We're still reeling': Hundreds remain without power as hailstorm damage counted
Queensland residents are counting the cost of giant hailstones that fell on Saturday afternoon, damaging cars, homes and gardens.
www.abc.net.au
November 2, 2025 at 6:54 AM
Nasty damage from hail in SE Queensland yesterday. People were injured, and the hail smashed solar panels, windows, cars etc. Some people remain without power. www.abc.net.au/news/2025-11...
Didn't expect this error but to be honest it seems fair enough...
October 20, 2025 at 11:50 PM
Didn't expect this error but to be honest it seems fair enough...
I'm increasingly tired of seeing ChatGPT writing style everywhere. It sticks out, especially high en-dash usage, poor similes, and supposed-to-be-clever "that's not just A, it's B" statements. Wikipedia has a nice list of AI "tells": en.wikipedia.org/wiki/Wikiped...
Wikipedia:Signs of AI writing - Wikipedia
en.wikipedia.org
October 19, 2025 at 11:40 PM
I'm increasingly tired of seeing ChatGPT writing style everywhere. It sticks out, especially high en-dash usage, poor similes, and supposed-to-be-clever "that's not just A, it's B" statements. Wikipedia has a nice list of AI "tells": en.wikipedia.org/wiki/Wikiped...
Reposted by Tim Raupach
For so long, fossil fuel projects have said their contribution to climate change is "negligible".
Turns out that's wrong.
Our research in NPJ Climate Action proves it.
Every tonne of CO2 matters.
@21stcenturyweather.bsky.social
@minderoo.bsky.social
#climatechange
www.nature.com/articles/s44...
Turns out that's wrong.
Our research in NPJ Climate Action proves it.
Every tonne of CO2 matters.
@21stcenturyweather.bsky.social
@minderoo.bsky.social
#climatechange
www.nature.com/articles/s44...
Quantifying the regional to global climate impacts of individual fossil fuel projects to inform decision-making - npj Climate Action
npj Climate Action - Quantifying the regional to global climate impacts of individual fossil fuel projects to inform decision-making
www.nature.com
October 13, 2025 at 10:07 AM
For so long, fossil fuel projects have said their contribution to climate change is "negligible".
Turns out that's wrong.
Our research in NPJ Climate Action proves it.
Every tonne of CO2 matters.
@21stcenturyweather.bsky.social
@minderoo.bsky.social
#climatechange
www.nature.com/articles/s44...
Turns out that's wrong.
Our research in NPJ Climate Action proves it.
Every tonne of CO2 matters.
@21stcenturyweather.bsky.social
@minderoo.bsky.social
#climatechange
www.nature.com/articles/s44...
Okay, but the ice still played rather a major role, no? www.nytimes.com/2025/10/06/s...
Wreck of Shackleton’s Endurance Tied to Culprit Other Than Ice
www.nytimes.com
October 7, 2025 at 9:51 PM
Okay, but the ice still played rather a major role, no? www.nytimes.com/2025/10/06/s...
This feels like the right music to be listening to while working on climate projections of hail risk to crops...
September 24, 2025 at 11:35 PM
This feels like the right music to be listening to while working on climate projections of hail risk to crops...
Great new research from Killian Brennan and Lena Wilhelm shows that hailstorms in Europe are influenced by dust from the Sahara. Crucial to gain this kind of microphysical understanding for hailstorms. acp.copernicus.org/articles/25/...
Saharan dust linked to European hail events
Abstract. Saharan dust significantly influences hail occurrence in Europe. Using Copernicus Atmosphere Monitoring Service (CAMS) and reanalysis data, crowd-sourced hail reports, lightning data, and ra...
acp.copernicus.org
September 24, 2025 at 12:13 AM
Great new research from Killian Brennan and Lena Wilhelm shows that hailstorms in Europe are influenced by dust from the Sahara. Crucial to gain this kind of microphysical understanding for hailstorms. acp.copernicus.org/articles/25/...
The Australian Climate Service's National Climate Risk Assessment is an excellent document - it gives a comprehensive and robust assessment of the state of knowledge on climate risks now and for the future. It makes for sobering reading. 1/4
www.acs.gov.au/pages/nation...
www.acs.gov.au/pages/nation...
National Climate Risk Assessment
Learn about Australia's first National Climate Risk Assessment.
www.acs.gov.au
September 16, 2025 at 1:20 AM
The Australian Climate Service's National Climate Risk Assessment is an excellent document - it gives a comprehensive and robust assessment of the state of knowledge on climate risks now and for the future. It makes for sobering reading. 1/4
www.acs.gov.au/pages/nation...
www.acs.gov.au/pages/nation...
Reposted by Tim Raupach
On one hand, reducing car use reduces urban pollution.
But on the other, everyone likes it and cities become more livable
But on the other, everyone likes it and cities become more livable
August 30, 2025 at 12:43 AM
On one hand, reducing car use reduces urban pollution.
But on the other, everyone likes it and cities become more livable
But on the other, everyone likes it and cities become more livable
The @ametsoc.org has released a statement on the deeply flawed DoE 2025 Climate Synthesis report. It reaffirms that the modern climate is changing primarily because of human influence; this is harmful; scientists agree; and response options are available. Read here: www.ametsoc.org/ams/about-am...
The Practice and Assessment of Science: Five Foundational Flaws in the Department of Energy's 2025 Climate Report
Adopted by the Executive Committee of the AMS Council on 27 August 2025
www.ametsoc.org
August 28, 2025 at 11:25 PM
The @ametsoc.org has released a statement on the deeply flawed DoE 2025 Climate Synthesis report. It reaffirms that the modern climate is changing primarily because of human influence; this is harmful; scientists agree; and response options are available. Read here: www.ametsoc.org/ams/about-am...
Shocked to discover that Excel can't open two independent documents that have the same filename. In 2025.
August 27, 2025 at 6:23 AM
Shocked to discover that Excel can't open two independent documents that have the same filename. In 2025.
David Bowen’s “plant machete” uses electrical signals from a houseplant to control a machete vimeo.com/744608966?fl...
plant machete
This installation enables a live plant to control a machete. plant machete has a control system that reads and utilizes the electrical noises found in a live philodendron.…
vimeo.com
August 17, 2025 at 1:02 AM
David Bowen’s “plant machete” uses electrical signals from a houseplant to control a machete vimeo.com/744608966?fl...
Joanna Aldridge (QBE) presented on projections of large hail risk in the USA.
August 8, 2025 at 7:06 AM
Joanna Aldridge (QBE) presented on projections of large hail risk in the USA.
Greeshma Surendran from @ccrc.bsky.social uses pseudo-global warming models to look at changes in extreme wind gusts.
August 8, 2025 at 4:10 AM
Greeshma Surendran from @ccrc.bsky.social uses pseudo-global warming models to look at changes in extreme wind gusts.
Next up, David Bee Olmedo from @nsw-bnhrc.bsky.social and @ccrc.bsky.social discusses scaling of extreme rainfall with temperature calculated using radar data.
August 8, 2025 at 3:52 AM
Next up, David Bee Olmedo from @nsw-bnhrc.bsky.social and @ccrc.bsky.social discusses scaling of extreme rainfall with temperature calculated using radar data.
Our afternoon session at the storms workshop is on climate impacts. Getting us started is Sarah Chapman from the Queensland Government talking about projections for storm environments under different warming levels.
August 8, 2025 at 3:48 AM
Our afternoon session at the storms workshop is on climate impacts. Getting us started is Sarah Chapman from the Queensland Government talking about projections for storm environments under different warming levels.
An important panel now at our storms workshop, as early career researchers tell us about their experiences, hopes and dreams in storm science and industry.
August 8, 2025 at 2:05 AM
An important panel now at our storms workshop, as early career researchers tell us about their experiences, hopes and dreams in storm science and industry.