Laure Poncet
Editor
Contents
4 President ' s report
6 Another Sudden Stratospheric Warming in 2025
9 2025 ACCESS Community Workshop: my experience as a first-time attendee
10 Meet the Australia-based experts shaping the IPCC AR7
14 Australia ' s first National Climate Risk Assessment
18 The COtL Mesonet of South Australia
22 The incredible story of " Weather Station Kurt "
23 Seasonal snaps 24 Charts of the Past 25 Calendar & JSHESS content
ISSN 1035‐6576 Editor: Laure Poncet Editor‐in‐Chief: Damien Irving Assistant Editors: Linden Ashcroft and Blair Trewin Design: Laure Poncet Publisher: AMOS
Contact and submit pieces: bamos @ amos. org. au. Submission guidelines are available online and at the end of this issue.
Cover Image: Wildflowers in Morawa, Western Australia, August 15. Credit: Craig Thomson( craigthomsonphotography. com)
Other images in this publication: Photographs without a specified source are obtained via the‘ pexels’ website and hyperlinked to the original image online.
Welcome to the spring issue of BAMOS for 2025!
As the days grow warmer and we slowly approach the summer break, it is a good time to look back at what happened over the spring months. Early September marked the onset of a sudden stratospheric warming event, which brought drier-than-usual conditions to parts of the southeast. September also saw the release of Australia ' s first National Climate Risk Assessment, which involved more than 250 climate experts. In this issue, three of these experts— Andrew Watkins, Lucas Walsh and Tas van Ommen— share the key findings of this report, which will no doubt help Australia better prepare for the future and the increasing risks of climate change. The international stage was also busy, with COP30 taking place this month in Belém and concluding last Friday, resulting in yet another mix of positive outcomes and shortcomings.
This issue also celebrates the Australia-based experts( including many of our AMOS community!) selected for the next IPCC Assessment Report, who will do incredibly important work assessing the state of climate science and our ability to adapt to and mitigate future impacts of climate change. Among these experts, we are fortunate to have Laurie Menviel, Tilo Ziehn, Kathleen McInnes, Jatin Kala, Blair Trewin, Md Saiful Karim, Josephine Brown, Johanna Nalau and Kathryn Bowen sharing what the next few years will look like and what their involvement in the IPCC means to them. A big thank you to all of them!
The issue also features our usual seasonal snaps. Big thanks to Linden Ashcroft, Melissa Lyne and Belinda Walker for submitting theirs. I don ' t usually share my own pictures in this section, but I was so excited to see my first fallstreak cloud back in September that I wanted to share it with you. If you have any pictures in your camera roll you ' d like to share, please make sure to send them to bamos @ amos. org. au for future issues. And as always, feel free to use that same address to send any feedback, suggestions or contributions.
I hope you enjoy this issue and wish everyone a lovely summer break and all the best for 2026.
Looking forward to seeing you next year!