Tropical Cyclone Mitchell over the Indian Ocean and intensifying. www.bom.gov.au/warning/trop...

Back-to-back 50°C days in South Australia! Andamooka reached 50.0°C on Thursday and Port Augusta reached 50.0°C today (Friday). These are among the top nine temperatures on record in Australia.

Submissions for the Inquiry into Funding & Resourcing for the CSIRO close today. More than 20k people signed my petition calling for proper funding of the CSIRO. If you care about evidence, innovation, and Australia’s future, this is a real opportunity to be heard. www.aph.gov.au/Parliamentar...

Extreme heat continues to circulate over central/eastern Australia, under a persistent upper-level high. The system is expected to break down on the weekend.

New all-time record set for Victoria, Walpeup 48.9°C, noting that Ouyen won’t report until tomorrow as it is a manually recorded site. reg.bom.gov.au/places/vic/

Hundreds of workers responsible for pollution prevention, weather forecasting, conservation and environmental disaster response are set to be cut from ECCC as Prime Minister Mark Carney's government takes a chainsaw to the public service. www.nationalobserver.com/2026/01/23/n...

Variously onshore winds - seasonal, and with SAM now positive - holding the bulk of the heat over eastern Australia west of the Divide.

Cars being washed towards the sea at Wye River this afternoon, less than a week after the Victorian town was evacuated due to nearby fires. Video via Luke Day on FB.

New study by Konrad and Ryan in my team @wslresearch.bsky.social as part of @extremeswsl.bsky.social Some randmoness can help in sub seasonal streamflow and water temperature forecasts. A piece for friends of statistics 🤓

I wrote a commentary discussing Daniele's huge new global synthesis of controls on hydrological processes in forested catchments: read it here: rdcu.be/eXTrq . Some surprising findings on the importance of overland flow, soils and antecedent conditions.

First time I’ve ever lived somewhere that’s had a forecast for catastrophic fire weather. Don’t know what I was expecting, but it is disconcerting

Aussie weather in 2025.

Christmas Day temperature forecast for Australia. 🎄

Excited to unveil Caravan-Qual! 🌊 We've expanded the Caravan framework to bridge the gap between water quantity and quality. This new open dataset features: 🔹 ~70M observations 🔹137k stations 🔹 100 constituents 🔹 Linked streamflow, forcing & attributes Links in 🧵

NCAR is a major pillar in global climate and weather research. This would have disastrous impacts. International leaders who care even the slightest about understanding future climate risks ought to condemn this. @chrisbowenmp.bsky.social #climate

Made a site comparing the sizes of living things :) The great Julius Csotonyi spent 5 months painting over 60 illustrations for the site, no ai used > neal.fun/size-of-life/

🚨New paper CCRC scientist Andrea Taschetto and team have published a comprehensive review of ENSO impacts in Australia in @natrevearthenviron.nature.com. This is an important and long-overdue synthesis, building on foundational studies such as McBride & Nicholls (1983). ++

Sumatra death toll past 500 now www.bbc.com/news/article...

Summer begins with negative AAO/SAM continuing (warmth/high pressure over Antarctica pushing sub-Antarctic westerlies further north than usual). The bushfire risk across parts of eastern Australia increases with every burst of westerlies.

So, your forecasts are sharp and reliable, but are they valuable? Our new EMS paper on RUVPY is out - reference implementation of RUV. Honest assessment needs to be tailored to the specific decision. RUV is general enough to model almost any context. Go forth and tinker. doi.org/10.1016/j.en...

‘Deathly silent’: two out of three corals in world heritage-listed Ningaloo reef have been killed, scientists confirm - by @readfearn.bsky.social www.theguardian.com/environment/...

‘Sad day for publicly funded science’: up to 350 more jobs to go at the CSIRO

A powerful Owlet stretching its magnificent wings. #brisbane #birds #wildoz

1/2 We just published the Global Carbon Budget 2025, with a mix of bad news (CO2 emissions continue to grow) and encouraging news (35 countries saw emissions decline over the past decade while growing their economies). Read the highlights in a short article: theconversation.com/the-worlds-c...

🚨New blog post🚨 Everyone needs more #HEPEX podcast content, including you 🫵 hepex.org.au/hepex-throug...

Eastern Australia has gone from dry, stable westerlies in mid-October to something a little more showery for the start of November. Here's how the broad-scale pattern has evolved. Note that negative AAO/SAM (reds over Antarctica) hasn't quite dissipated yet.

I will be helping give a webinar on the climate and hazard work underpinning the Australian National Climate Risk Assessment (NCRA), Monday 20 Oct - please register! events.teams.microsoft.com/event/b1585f...

Low pressure system sweeping along the NSW coastline on Thursday morning.

The coming and going of air masses and jet streams over Australia and New Zealand during winter 2025.

The Guardian on our study published today: www.theguardian.com/environment/...

Antarctic origins of the air mass arriving over south east Australia.

given one of the few good uses for LLMs is coding assistance maybe tech council members should immediately open source all their code under a permissive license. to do otherwise would risk harming investment in the AI industry in Australia, imo

I take a look at how spring is shaping up for Australia and the possible negative Indian Ocean Dipole event taking shape theconversation.com/changes-are-...

Woman swept away in flood waters in Hunter region as emergency services respond to more than 1,450 incidents

Cooper Creek floodwater finally arriving at the eastern shore of Kati Thanda-Lake Eyre, four months after the rain over western QLD. link.dataspace.copernicus.eu/8ijs

Torrential rain has triggered flooding, destroyed hundreds of houses, and killed more than 150 people in the past month.

Federal Court Justice Wigney is beginning his summary of his decision in Pabai Pabai v Commonwealth with a sketch of the changes to the Torres Strait islands. He is describing profound changes to the landscape. /n

Bathing sites will be located near the French capital’s Notre-Dame cathedral, the Eiffel Tower and in eastern Paris.

🔉 ECMWF has announced the appointment of Florian Pappenberger as its next Director-General. He will take up the post on 1 January 2026. Read more in our web article ➡️ www.ecmwf.int/en/about/med... @fpappenberger.bsky.social

🚨 New Blog Post 🚨 Early career Hepexers got together at our recent workshop to talk career paths in hydrological forecasting. Here’s what they came up with 👇 hepex.org.au/early-career...

📣 New preprint "Probabilistic measures afford fair comparisons of AIWP and NWP model output" with Tilmann Gneiting, Tobias Biegert, Kristof Kraus, Eva Walz and Alexander Jordan available at arxiv.org/abs/2506.03744. Some details below 🧵

My colleagues Julien and Jai have just published this detailed description of the 2022 Northern Rivers floods. A very readable paper on one of the most remarkable extreme events in Australia's recent history: www.nature.com/articles/s43...

An #Hepex community paper led by Ilias journals.ametsoc.org/view/journal... with @hepexorg.bsky.social @louiseslater.bsky.social @annie-yyc.bsky.social @jcbmmx.bsky.social @fpappenberger.bsky.social @antara-dasgupta.bsky.social @celinecattoen.bsky.social and others

New community paper on the future of hydrological prediction 👇

The addition of more Australian catchments is very welcome! 🦘 🐪

NSW floods 2025 map: these flood maps show the full extent of record-breaking rainfall

Did I ever share this paragraph with you from one of my journal articles? ("Railways and Water in Australasia, 1870s to 1914", History Australia 17:3, 2020)

Drowned herds. Towns underwater. Farmers in NSW are facing ‘absolute devastation’

Flooding rain continues over north east NSW, with rain now also falling west of the Divide thanks to the arrival of a second upper-level low. This system will track south on Friday, clearing the rain by Saturday.