Dent de Jaman (Rochers de Naye)
📍 Vaud , Riviera-Pays-d'Enhaut District · Nearest city: Caux (3 km)
60 XC score / 100 · takeoff at 1738 m · 📍 View on map
Coordinates and external links
46.44170, 6.97593Forecast next days
Updated: 2026-04-20 12:34 UTC · Source: Open-Meteo · Thermal window 10:00–18:00 local time
Día muy favorable para XC, base de cúmulos ~645 m, viento 12 km/h.
base ~645m · wind 12 km/hDía volable, condiciones decentes, base de cúmulos ~640 m, viento 14 km/h.
base ~640m · wind 14 km/hDía volable, condiciones decentes, base de cúmulos ~1290 m, viento 13 km/h.
base ~1290m · wind 13 km/hDía volable, condiciones decentes, base de cúmulos ~1463 m, viento 9 km/h.
base ~1463m · wind 9 km/hComposite flyability score (CAPE + LI + wind + precip + low clouds). Cross-check with local pilots before flying.
Detailed hourly weather
2026-04-20⚠️ Marginal · peak 55 at 8h
- Cloud suck alto (63/100) — base bajo freezing con CU
| 08 55 | 09 50 | 10 50 | 11 50 ☁️⚠️ | 12 50 ☁️⚠️ | 13 55 | 14 55 | 15 50 ☁️⚠️ 🏔️ | 16 50 ☁️⚠️ | 17 50 ☁️⚠️ | 18 55 ☁️⚠️ | 19 55 | 20 55 |
Peak 8h: CAPE 0 J/kg · LI 2.9 · BL top 390 m · w* 0.0 m/s · cloud base 1838 m · 0°C at 2600 m · Pro score 56/100 · sun 24° over slope
2026-04-21⚠️ Marginal · peak 60 at 12h
- Cloud suck alto (83/100) — base bajo freezing con CU
| 08 35 | 09 55 | 10 55 ☁️⚠️ | 11 55 ☁️⚠️ | 12 60 ☁️⚠️ | 13 60 ☁️⚠️ | 14 55 ☁️⚠️ | 15 60 ☁️⚠️ | 16 40 ☁️⚠️ | 17 40 ☁️⚠️ | 18 35 ☁️⚠️ | 19 35 ☁️⚠️ | 20 35 ☁️⚠️ |
Peak 12h: CAPE 10 J/kg · LI 1.7 · BL top 980 m · w* 0.0 m/s · cloud base 2488 m · 0°C at 2300 m · sun 40° 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: 08:00 (peak of the day)
Surface T: 3.3°C · Td: 2.5°C
LCL (cloud base): 99 m
BL top: 390 m
0°C level: 2600 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) | 16 | High |
| Avg thermal probability | 0.83 | 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 |
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/
Nearby sites
Rochers de Naye Antenne (68) · Sonchaux (Villeneuve) (60) · Lally (56) · Berneuse-2020 (57) · Pleiades (58) · l'Aiguille (51)