snownow
Every weather model, at your elevation.
1 Location
2 Choose your adventure
3 Elevation
3 Forecast
Advanced forecast settings: compare the models
For the weather-wise: see every model side by side, charts, tables and how each one has scored against real measurements.
Most accurate here picks the models that have matched the nearest weather station best. My choice uses the models you tick below.
How is this worked out?
We take the forecasts each model made one day ahead and compare them, hour by hour, with what the nearest suitable weather station actually measured: temperature, wind speed and daily precipitation. For each of these we work out every model’s average error, then compare it with the average of all the models. The model with the lowest combined score ranks first. The station is picked for being close and at a similar height to your point, and the forecasts are worked out for the height of the station, so it is a fair test.
Models and what’s shown
Changes are saved automaticallyGrand Som snow forecast, day by day
| Day | Summit2,026 m | 500 m lower1,530 m | 1,000 m lower1,030 m | Freezing level |
|---|---|---|---|---|
| Sun 25 Oct | 6 cm | 1 cm | – | 1,750–2,650 m |
| Mon 26 Oct | – | – | – | 1,550–3,200 m |
| Tue 27 Oct | – | – | – | 2,500–3,900 m |
| Wed 28 Oct | – | – | – | 2,100–3,000 m |
| Thu 29 Oct | – | – | – | 2,100–3,450 m |
| Fri 30 Oct | – | – | – | 2,100–3,400 m |
| Sat 31 Oct | – | – | – | 1,900–3,050 m |
| Total | 6 cm | 1 cm | – |
Forecast snowfall worked out for each height from ECMWF (days in UTC, updated 5 minutes ago). Not a measured snow depth. The forecast above has the hour-by-hour detail, wind and temperature, and every other model.
Mountains near Grand Som
- Lances de Malissard2,045 m · 5 km away · 6 cm in 3 days
- Charmant Som1,867 m · 6 km away · 2 cm in 3 days
- Dent de Crolles2,062 m · 8 km away · 7 cm in 3 days
- Chamechaude2,082 m · 9 km away · 7 cm in 3 days
- Mont Outheran1,676 m · 11 km away · 2 cm in 3 days
- Mont Granier1,933 m · 14 km away · 3 cm in 3 days
- Grand Pic de Belledonne2,977 m · 26 km away · 19 cm in 3 days
- Moucherotte1,901 m · 28 km away · 3 cm in 3 days
Ski areas near Grand Som
- Saint-Pierre-de-Chartreuse3 km away · no snow in 3 days
- Saint-Hilaire-du-Touvet8 km away · no snow in 3 days
- Les 7 Laux21 km away · no snow in 3 days
- Autrans – Grand domaine la Sure24 km away · no snow in 3 days
- Le Collet d'Allevard25 km away · no snow in 3 days
- Domaine Skiable Chamrousse29 km away · no snow in 3 days
More: Mountains in the Chartreuse Mountains · Mountains in the Alps · Mountains in France · Mountains in Europe · The world’s highest mountains · Ski resorts
Questions about Grand Som
- Will it snow on Grand Som this week?
- Yes. About 5.6 cm of snow is forecast at the summit of Grand Som (2,026 m) over the next 7 days, most of it on Sunday.
- What is the freezing level on Grand Som?
- Over the next 7 days the freezing level is forecast between about 1,550 m and 3,900 m. The summit is 2,026 m, so the summit will be below freezing at times and above it at others.
- How high is Grand Som?
- Grand Som is 2,026 m (6,647 ft) high, in France.
- How prominent is Grand Som?
- Grand Som has a topographic prominence of 887 m (2,910 ft): it rises that far above the lowest col linking it to any higher ground.
- Which mountain range is Grand Som in?
- Grand Som is in the Chartreuse Mountains, part of the Alps.
Mountain heights and names: Wikidata (CC0).