Arpette (Les Arcs)
📍 Rhone-Alpes , Departement de la Savoie · Nearest city: Seez (4 km)
54 XC score / 100 · takeoff at 2151 m · 📍 View on map
Coordinates and external links
45.58340, 6.80480Forecast next days
Updated: 2026-04-19 16:15 UTC · Source: Open-Meteo · Thermal window 10:00–18:00 local time
Día volable, condiciones decentes, base de cúmulos ~1308 m, viento 23 km/h.
base ~1308m · wind 23 km/hDía volable, condiciones decentes, base de cúmulos ~1400 m, viento 18 km/h.
base ~1400m · wind 18 km/hDía volable, condiciones decentes, base de cúmulos ~1748 m, viento 18 km/h.
base ~1748m · wind 18 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 17h
- Cloud suck alto (95/100) — base bajo freezing con CU
| 08 30 ☁️⚠️ | 09 30 ☁️⚠️ | 10 30 ☁️⚠️ | 11 50 ☁️⚠️ | 12 50 ☁️⚠️ | 13 40 ☁️⚠️ 🏔️ | 14 50 ☁️⚠️ 🏔️ | 15 50 ☁️⚠️ 🏔️ | 16 50 ☁️⚠️ 🏔️ | 17 55 ☁️⚠️ 🏔️ | 18 50 ☁️⚠️ 🏔️ | 19 50 ☁️⚠️ | 20 50 ☁️⚠️ |
Peak 17h: CAPE 20 J/kg · LI 1.2 · BL top 1435 m · w* 0.0 m/s · cloud base 3238 m · 0°C at 2710 m · Pro score 52/100 · sun 17° over slope
2026-04-21❌ Not recommended · peak 55 at 13h
- Día muy estable (CAPE<50, LI>2) — sin térmicas
- Cloud suck alto (69/100) — base bajo freezing con CU
| 08 30 ☁️⚠️ | 09 30 ☁️⚠️ | 10 30 ☁️⚠️ | 11 30 ☁️⚠️ | 12 50 ☁️⚠️ | 13 55 ☁️⚠️ | 14 55 ☁️⚠️ | 15 55 ☁️⚠️ | 16 55 ☁️⚠️ | 17 45 ☁️⚠️ | 18 55 ☁️⚠️ | 19 55 ☁️⚠️ | 20 55 ☁️⚠️ |
Peak 13h: CAPE 10 J/kg · LI 3.8 · BL top 1435 m · w* 0.0 m/s · cloud base 3963 m · 0°C at 2600 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: 17:00 (peak of the day)
Surface T: 6.8°C · Td: -1.9°C
LCL (cloud base): 1087 m
BL top: 1435 m
0°C level: 2710 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) | 7 | Medium |
| Avg thermal probability | 0.83 | Based on thousands of aggregated IGC flights |
| Solar orientation | 0.25 | Slope faces south in northern hemisphere |
| Own flight history | 0.00 | Thermals detected in platform IGC tracks |
Takeoff description
In summer and in winter, access by the funicular then the lift of Arpette since Bourg-Saint-Maurice
Nearby sites
Altiport (Les Arcs) (58) · Poudreuse (Les Arcs) (57) · Les arcs (50) · Bourg st maurice (47) · Vallandry (58) · Le Mont (44)