Everything known about ARkStorm, in one place.
Studies, data, films and reporting from anywhere in the world, newest first. We add new work as soon as it’s published.
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OngoingReporting
Weather West
Daniel Swain’s blog on California weather and climate. Swain co-wrote the ARkStorm 2.0 study.
Daniel Swain -
April 6, 2026Reporting
A biblical megaflood could hit the US at any moment. And that’s only the beginning
A recent overview of the megaflood risk and how ready California is.
BBC Science Focus -
June 2023Data
ARkStorm 2.0 storm simulations released as an open dataset
The simulations behind the 2022 study were opened to other researchers and won DesignSafe’s 2023 Dataset Award.
DesignSafe -
September 15, 2022Reporting
Climate change is increasing the chances of a California megaflood
A plain-language walk through the 2022 study and its two storm scenarios.
Spectrum News 1 -
August 12, 2022Study
Climate change is increasing the risk of a California megaflood
The first part of ARkStorm 2.0, by Xingying Huang and Daniel Swain.
Science Advances -
August 12, 2022Reporting
Climate change makes catastrophic flood twice as likely, study shows
The university’s own summary of the study, with comments from Daniel Swain.
UCLA Newsroom -
January 2013Reporting
The Coming Megafloods
Where the list of past megastorms comes from: the silt layers that record them, read by Michael Dettinger of USGS and B. Lynn Ingram of UC Berkeley.
Scientific American -
2013Reporting
California Megaflood: Lessons from a Forgotten Catastrophe
The story of the 1861–62 flood and the evidence that floods like it have happened before.
Scientific American -
January 14, 2011Report
Overview of the ARkStorm Scenario
The original study. Open-File Report 2010-1312, 183 pages, by a team of 117 experts.
U.S. Geological Survey -
2011Film
How the library works.
Every entry links to the original source. The one-line summaries are ours. Our founder’s own analysis is labelled and kept on its own page.
Know of something we’re missing?
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