Last updated 28 October 2026
Terms of use
Cirque is free to use. In return, please read what the snow figures can and cannot tell you, because decisions about trips and mountains are yours.
What Cirque is
Cirque is run by Methodis Ltd. In these terms, “we” and “us” mean Methodis Ltd.
Cirque estimates natural snow at ski resorts from eleven winters of historical weather. It is a planning aid for comparing places, dates and heights. It is not a forecast, a snow report or safety advice.
Limits of the model
The model knows nothing about snowmaking, grooming, wind, avalanche conditions or whether lifts are open. Checked against measured snow depth, it reads 20% to 60% shallower than reality. How it works and how it was tested are set out on the Method page.
Past winters do not guarantee future ones. Before you travel, check the resort’s own snow report and opening dates. Before you go off-piste, check the local avalanche bulletin and go with the right equipment and knowledge.
No guarantee
We work to keep Cirque accurate and available, but we provide it as it is, without any promise that it is complete, current or free of errors. To the extent the law allows, we are not responsible for losses that come from relying on it, including the cost of trips, bookings or travel.
Nothing in these terms limits liability that cannot legally be limited, such as for death or personal injury caused by negligence, or your rights as a consumer under UK law.
Data and licences
Weather history: Open-Meteo, using the ERA5 reanalysis from the Copernicus Climate Change Service (CC BY 4.0).
Ski areas, runs and lifts: OpenSkiMap, from OpenStreetMap contributors, available under the Open Database License (ODbL).
Base map: OpenFreeMap and OpenMapTiles, with data from OpenStreetMap contributors.
Terrain: AWS Terrain Tiles. Satellite view: Sentinel-2 cloudless 2016 by EOX (CC BY 4.0).
Snow measurements used for testing: USDA Natural Resources Conservation Service SNOTEL network (public domain). Airports: OurAirports (public domain).
The text, design and snow model outputs on Cirque belong to Methodis Ltd. You are welcome to link to Cirque and quote figures with a link back.
Other websites
Cirque links to resorts, data providers and other sites we don’t control. We are not responsible for their content or how they handle your data.
Changes
We may update these terms as the site changes. The date at the top shows the latest version.
Law
These terms are governed by the law of England and Wales. If you live elsewhere in the UK, you can also bring a claim in your local courts.
Contact
Questions about these terms: hello@cirqueski.com.