Spread of regional medians across RCP2.6, RCP4.5 and RCP8.5, not uncertainty percentiles · m
These regional results are not universal snowlines or resort viability cut-offs. Aspect and management matter.
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Published evidence / Open chart
Snow reliability depends on elevation.
Regional median groomed natural-snow reliability elevation
The values behind the chart
| Series | Published value |
|---|---|
| Northern French Alps · selected | 1,850–2,000 m |
| Southern French Alps | 2,500–2,650 m |
| French Pyrenees | 2,250–2,300 m |
| Spanish / Andorran Pyrenees | 2,550–2,650 m |
Method and original sources
Spandre et al. (2019), section 3.1.2. At least 100 days with 100 kg/m² of groomed natural snow between 15 December and 15 April, in seven winters out of ten.
Spandre et al. · snow and elevation · 2019 ↗
Section 3.1.2. Regional median elevations during 2030–2050 across RCP2.6, 4.5 and 8.5. Groomed natural snow: at least 100 days with 100 kg/m² between 15 December and 15 April in 7 winters out of 10. These are scenario spreads, not uncertainty percentiles or universal snowlines.
Evidence reviewed 2026-10-11. Source publication dates are shown separately. This chart republishes selected findings; it does not calculate a local climate forecast.
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