Belchenflue S
Stay on the ground: the launch is in the lee of a ridge.
Forecast updated 31 Oct, 14:05 · Zurich time · valid 2026-10-31
Conditions score out of 100, not a probability.
At 13:00
1,350 m
Thermal top
1,400 m
Cloud base
ENE 14
Launch, km/h
29
Gusts, km/h
Hour by hour
No clean windowAt launch · wind, then gusts, km/h
1016112413251429153115301429122914301323111514261425
- 08:00–09:00Wind behind launch.
- 10:00–13:00Lee of a ridge upwind: expect rotor.
- 14:00–15:00Gusts too strong at launch.
- 16:00Wind behind launch.
Sunrise 07:12 · sunset 17:14
Wind and thermals aloft
13:00 · top 1,350 m · base 1,400 m · ENE 49 km/h at 1,400 m
Thermals, deeper yellow the higher they goCumulus on the base, veils higher upWind km/h, bold from 25Launch height
Terrain
The ground around the launch
Loading the terrain…
13:00sun 27°ENE 13 km/h at launch
Geometry from a ~25 m elevation model plus the forecast: rules of thumb, not a flow simulation. Elevation: EU-DEM, produced using Copernicus data and information funded by the European Union, via Terrain Tiles on AWS.
More detail
Days 4–7: lower confidence outlook