Sonchaux (Villeneuve)
📍 Vaud , Riviera-Pays-d'Enhaut District · Nearest city: Caux (2 km)
60 XC score / 100 · takeoff at 1404 m · 📍 View on map
Coordinates and external links
46.41730, 6.95220Forecast next days
Updated: 2026-04-19 16:08 UTC · Source: Open-Meteo · Thermal window 10:00–18:00 local time
Día volable, condiciones decentes, base de cúmulos ~677 m, viento 12 km/h.
base ~677m · wind 12 km/hDía volable, condiciones decentes, base de cúmulos ~872 m, viento 15 km/h.
base ~872m · wind 15 km/hDía volable, condiciones decentes, base de cúmulos ~1198 m, viento 12 km/h.
base ~1198m · wind 12 km/hComposite flyability score (CAPE + LI + wind + precip + low clouds). Cross-check with local pilots before flying.
Detailed hourly weather
2026-04-20✅ Flyable · peak 55 at 9h
| 08 50 | 09 55 | 10 50 | 11 50 | 12 55 | 13 50 | 14 50 | 15 50 ☁️⚠️ | 16 50 ☁️⚠️ | 17 50 ☁️⚠️ | 18 55 | 19 55 | 20 50 |
Peak 9h: CAPE 0 J/kg · LI 1.7 · BL top 285 m · w* 0.0 m/s · cloud base 1729 m · 0°C at 2570 m · Pro score 63/100 · sun 30° over slope
2026-04-21⚠️ Marginal · peak 60 at 15h
- Cloud suck alto (68/100) — base bajo freezing con CU
| 08 35 | 09 55 | 10 55 | 11 55 | 12 55 | 13 55 | 14 55 | 15 60 | 16 40 ☁️⚠️ | 17 40 ☁️⚠️ | 18 40 ☁️⚠️ | 19 35 ☁️⚠️ | 20 35 |
Peak 15h: CAPE 40 J/kg · LI 3.1 · BL top 1210 m · w* 0.0 m/s · cloud base 2266 m · 0°C at 2280 m · Pro score 55/100 · sun 30° over slope
Hourly flyability (0–100). ⛈️ = storm risk · ☁️⚠️ = cloud suck · 🏔️ = active ridge lift. CAPE = convective energy, LI = stability, BL top = thermal ceiling, w* = estimated dry thermal velocity. Source: Open-Meteo (ECMWF/GFS/ICON blend model).
Estimated vertical profile (Sounding)
Reference time: 09:00 (peak of the day)
Surface T: 6.1°C · Td: 3.5°C
LCL (cloud base): 324 m
BL top: 285 m
0°C level: 2570 m
Approximate profile from surface variables + synoptic levels. Red lines = temperature, dashed blue = dew point. Orange bands = detected inversions.
Takeoff orientations
Green = good orientation · Yellow = possible · Gray = not suitable
Why this site has thermal potential
| Factor | Value | Interpretation |
|---|---|---|
| Hotspot density (5 km) | 11 | High |
| Avg thermal probability | 0.84 | Based on thousands of aggregated IGC flights |
| Solar orientation | 0.38 | Slope faces south in northern hemisphere |
| Own flight history | 0.00 | Thermals detected in platform IGC tracks |
Takeoff description
Sonchaux, Rochers de Naye, Jaman
Rules and notes
Airspaces in Switzerland are a tough subject, get all the info you can get before flying: http://www.flyland.ch. DABS (active danger areas etc): https://www.skybriefing.com/portal/
Pilot comments
More info on http://www.rnvl.ch Club Rochers de Naye Vol libre
Nearby sites
Rochers de Naye Antenne (68) · Dent de Jaman (Rochers de Naye) (60) · Lally (56) · Berneuse-2020 (57) · Pleiades (58) · Vionnaz Turn (56)