Plan de langot
📍 Rhone-Alpes , Departement de la Savoie · Nearest city: Mercury (1 km)
56 XC score / 100 · takeoff at 1185 m · 📍 View on map
Coordinates and external links
45.68170, 6.32208Forecast next days
Updated: 2026-04-19 16:12 UTC · Source: Open-Meteo · Thermal window 10:00–18:00 local time
Día volable, condiciones decentes, base de cúmulos ~919 m, viento 9 km/h.
base ~919m · wind 9 km/hDía volable, condiciones decentes, base de cúmulos ~1252 m, viento 10 km/h.
base ~1252m · wind 10 km/hDía volable, condiciones decentes, base de cúmulos ~1572 m, viento 7 km/h.
base ~1572m · wind 7 km/hComposite flyability score (CAPE + LI + wind + precip + low clouds). Cross-check with local pilots before flying.
Detailed hourly weather
2026-04-20❌ Not recommended · peak 60 at 15h
- Cobertura nubosa >85% — sin radiación para disparar
- Cloud suck alto (83/100) — base bajo freezing con CU
⏰ Useful window: 13:00 – 15:00
| 08 50 | 09 40 | 10 40 | 11 40 | 12 45 | 13 45 | 14 55 | 15 60 | 16 50 ☁️⚠️ | 17 55 | 18 50 ☁️⚠️ | 19 50 | 20 55 |
Peak 15h: CAPE 50 J/kg · LI 0.5 · BL top 1695 m · w* 8.0 m/s · cloud base 2160 m · 0°C at 2630 m · sun 31° over slope
2026-04-21❌ Not recommended · peak 55 at 10h
- Día muy estable (CAPE<50, LI>2) — sin térmicas
- Cloud suck alto (67/100) — base bajo freezing con CU
| 08 30 | 09 30 | 10 55 | 11 55 | 12 55 ☁️⚠️ | 13 55 ☁️⚠️ | 14 55 ☁️⚠️ | 15 40 | 16 40 ☁️⚠️ | 17 35 ☁️⚠️ | 18 35 ☁️⚠️ | 19 30 ☁️⚠️ | 20 30 ☁️⚠️ |
Peak 10h: CAPE 0 J/kg · LI 3.5 · BL top 600 m · w* 0.0 m/s · cloud base 1997 m · 0°C at 2520 m · Pro score 62/100 · sun 36° 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: 15:00 (peak of the day)
Surface T: 13.3°C · Td: 5.5°C
LCL (cloud base): 975 m
BL top: 1695 m
0°C level: 2630 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) | 6 | Medium |
| Avg thermal probability | 0.82 | Based on thousands of aggregated IGC flights |
| Solar orientation | 0.45 | Slope faces south in northern hemisphere |
| Own flight history | 0.00 | Thermals detected in platform IGC tracks |
Takeoff description
alti : 1200m Park the car at the end of the road of 'La ramaz'. 20 min walk.It's a steep climb!
Nearby sites
Sambuy (51) · Marlens (76) · L'ebaudiaz (49) · Croix d'Allant (45) · Sulens (42) · Fenetre 7 (46)