Poudreuse (Les Arcs)
📍 Rhone-Alpes , Departement de la Savoie · Nearest city: Bourg-Saint-Maurice (8 km)
57 XC score / 100 · takeoff at 2102 m · 📍 View on map
Coordinates and external links
45.54900, 6.78460Forecast next days
Updated: 2026-04-19 16:11 UTC · Source: Open-Meteo · Thermal window 10:00–18:00 local time
Día volable, condiciones decentes, base de cúmulos ~1204 m, viento 22 km/h.
base ~1204m · wind 22 km/hDía volable, condiciones decentes, base de cúmulos ~1398 m, viento 18 km/h.
base ~1398m · wind 18 km/hDía volable, condiciones decentes, base de cúmulos ~1756 m, viento 18 km/h.
base ~1756m · 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 60 at 19h
- Cloud suck alto (79/100) — base bajo freezing con CU
| 08 30 ☁️⚠️ | 09 30 ☁️⚠️ | 10 30 ☁️⚠️ | 11 55 | 12 50 ☁️⚠️ | 13 50 ☁️⚠️ | 14 50 ☁️⚠️ 🏔️ | 15 50 ☁️⚠️ 🏔️ | 16 40 ☁️⚠️ 🏔️ | 17 45 ☁️⚠️ 🏔️ | 18 50 ☁️⚠️ 🏔️ | 19 60 ☁️⚠️ | 20 55 ☁️⚠️ |
Peak 19h: CAPE 10 J/kg · LI 0.1 · BL top 325 m · w* 0.0 m/s · cloud base 2727 m · 0°C at 2640 m · Pro score 51/100
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 1105 m · w* 0.0 m/s · cloud base 3914 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: 19:00 (peak of the day)
Surface T: 5.1°C · Td: 0.1°C
LCL (cloud base): 625 m
BL top: 325 m
0°C level: 2640 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 | 0.81 | 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 |
Nearby sites
L Ecureuil (60) · L'ours (52) · Vallandry (58) · Bourg st maurice (47) · Altiport (Les Arcs) (58) · Arpette (Les Arcs) (54)