Barmerousse
📍 Rhone-Alpes , Departement de la Haute-Savoie · Nearest city: Passy (4 km)
53 XC score / 100 · takeoff at -1 m · 📍 View on map
Coordinates and external links
45.95420, 6.69335Forecast next days
Updated: 2026-04-19 16:17 UTC · Source: Open-Meteo · Thermal window 10:00–18:00 local time
Día volable, condiciones decentes, base de cúmulos ~324 m, viento 10 km/h.
base ~324m · wind 10 km/hDía muy favorable para XC, base de cúmulos ~983 m, viento 13 km/h.
base ~983m · wind 13 km/hDía muy favorable para XC, base de cúmulos ~1752 m, viento 11 km/h.
base ~1752m · wind 11 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 14h
- Cobertura nubosa >85% — sin radiación para disparar
| 08 50 | 09 50 | 10 50 | 11 50 | 12 50 | 13 40 | 14 55 | 15 55 | 16 55 | 17 45 | 18 55 | 19 50 | 20 50 |
Peak 14h: CAPE 20 J/kg · LI 0.9 · BL top 1335 m · w* 0.0 m/s · cloud base 449 m · 0°C at 2560 m · Pro score 48/100 · sun 36° over slope
2026-04-21⚠️ Marginal · peak 60 at 17h
- Día muy estable (CAPE<50, LI>2) — sin térmicas
| 08 30 | 09 30 | 10 50 | 11 55 | 12 55 | 13 55 | 14 55 | 15 55 | 16 55 | 17 60 | 18 35 | 19 35 | 20 30 |
Peak 17h: CAPE 10 J/kg · LI 3.5 · BL top 1590 m · w* 0.0 m/s · cloud base 1336 m · 0°C at 2450 m · Pro score 55/100 · sun 17° 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: 14:00 (peak of the day)
Surface T: 3.6°C · Td: 0.0°C
LCL (cloud base): 450 m
BL top: 1335 m
0°C level: 2560 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 | 0.85 | Based on thousands of aggregated IGC flights |
| Solar orientation | 0.39 | Slope faces south in northern hemisphere |
| Own flight history | 0.00 | Thermals detected in platform IGC tracks |
Takeoff description
Easy take off compare to the one at the pass of Barmerousse
Nearby sites
Frioland (64) · Aiguille rouge (43) · Varan dit "Verdun" (61) · Varan dit "Pobu" (55) · Platé (60) · Les chalets du Lachat (44)