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 automaticallySouth Sister snow forecast and mountain weather
South Sister rises to 3,159 m in United States, in the Three Sisters (North American Cordillera), with a prominence of 1,705 m. The forecast below starts at the summit; lower the height to see the slopes and valleys, or compare every model.
South Sister snow forecast, day by day
| Day | Summit3,159 m | 500 m lower2,660 m | 1,000 m lower2,160 m | Freezing level |
|---|---|---|---|---|
| Mon 26 Oct | 18 cm | 18 cm | 18 cm | 1,700–2,600 m |
| Tue 27 Oct | 15 cm | 15 cm | 15 cm | 1,700–1,850 m |
| Wed 28 Oct | 4 cm | 4 cm | 4 cm | 1,350–1,850 m |
| Thu 29 Oct | <1 cm | <1 cm | <1 cm | 1,000–2,550 m |
| Fri 30 Oct | 1 cm | 1 cm | 1 cm | 1,450–2,500 m |
| Sat 31 Oct | 3 cm | 3 cm | 3 cm | 1,200–2,100 m |
| Sun 1 Nov | 9 cm | 9 cm | 9 cm | 1,050–2,100 m |
| Total | 49 cm | 49 cm | 49 cm |
Forecast snowfall worked out for each height from GFS (US) (days in UTC, updated 13 hours ago). Not a measured snow depth. The forecast above has the hour-by-hour detail, wind and temperature, and every other model.
Mountains near South Sister
- Broken Top2,797 m · 6 km away · 29 cm in 3 days
- Tumalo Mountain2,370 m · 15 km away · 16 cm in 3 days
- Mount Bachelor2,764 m · 15 km away · 16 cm in 3 days
- Belknap Crater2,095 m · 21 km away · 24 cm in 3 days
- Mount Washington2,376 m · 26 km away · 24 cm in 3 days
- Black Butte1,963 m · 35 km away · 7 cm in 3 days
- Lava Butte1,531 m · 39 km away · 2 cm in 3 days
- Three Fingered Jack2,391 m · 42 km away · 26 cm in 3 days
Ski areas near South Sister
- Mt. Bachelor14 km away · 17 cm in 3 days
- Hoodoo Ski Area35 km away · 40 cm in 3 days
- Willamette Pass58 km away · 13 cm in 3 days
More: Mountains in the Oregon Cascades · Mountains in the North American Cordillera · Mountains in United States · Mountains in North America · The world’s highest mountains · Ski resorts
Questions about South Sister
- Will it snow on South Sister this week?
- Yes. About 49 cm of snow is forecast at the summit of South Sister (3,159 m) over the next 7 days, most of it on Monday.
- What is the freezing level on South Sister?
- Over the next 7 days the freezing level is forecast between about 1,000 m and 2,600 m. The summit is 3,159 m, so it should stay below freezing at the top all week.
- How high is South Sister?
- South Sister is 3,159 m (10,364 ft) high, in United States.
- How prominent is South Sister?
- South Sister has a topographic prominence of 1,705 m (5,594 ft): it rises that far above the lowest col linking it to any higher ground.
- Which mountain range is South Sister in?
- South Sister is in the Three Sisters, part of the North American Cordillera.
Mountain heights and names: Wikidata (CC0).