Complex snowpack conditions and human behavior explain this season's surge in Alpine avalanche deaths
Source: https://www.theguardian.com/profile/johan-gaume. "Avalanche deaths have surged in the Alps this season. Here’s why | Johan Gaume | The Guardian." April 29, 2026. www.theguardian.com
The Gist
This winter's unusually high number of avalanche deaths in the Alps happened because the snow conditions were particularly treacherous - with weak layers hidden under new snow - and people made predictable but risky decisions when fresh powder finally arrived after long dry spells. Climate change is likely to make these dangerous conditions more common.
Conclusion
The surge in Alpine avalanche deaths this season results from a combination of particularly dangerous snowpack conditions (persistent weak layers) and predictable human behavioral factors that increase exposure to risk
Premises
- This season's snowpack was unusually dangerous due to early snowfall, followed by drought and cold temperatures that created persistent weak layers, then covered by new snow slabs
- The death toll of 146 fatalities is clearly above average and more than twice some recent years, affecting even experienced professionals
- Human behavior patterns contribute significantly - people become frustrated during dry periods and rush to ski when snow returns, often ignoring safety warnings
- Climate change is making these dangerous conditions more likely through increased variability and longer dry periods followed by intense snowfall events
- Despite available safety information in daily avalanche bulletins, there remains a gap in public understanding of avalanche consequences and terrain management
Assumptions
- Avalanche bulletins provide accurate and sufficient safety information when properly interpreted
- Human behavior patterns around risk-taking in powder skiing are predictable and consistent
- Climate change will continue to produce more extreme weather variability in Alpine regions
- Education and awareness can meaningfully reduce avalanche fatalities if properly targeted