Le Grand Replomb
📍 Rhone-Alpes , Departement de l'Isere · Nearest city: Le Champ-pres-Froges (10 km)
67 XC score / 100 · takeoff at 2467 m · 📍 View on map
Coordinates and external links
45.20080, 5.98028Forecast next days
Updated: 2026-04-19 16:02 UTC · Source: Open-Meteo · Thermal window 10:00–18:00 local time
Día volable, condiciones decentes, base de cúmulos ~545 m, viento 12 km/h.
base ~545m · wind 12 km/hDía volable, condiciones decentes, base de cúmulos ~1086 m, viento 12 km/h.
base ~1086m · wind 12 km/hCondiciones marginales, base de cúmulos ~1315 m, viento 12 km/h.
base ~1315m · wind 12 km/hComposite flyability score (CAPE + LI + wind + precip + low clouds). Cross-check with local pilots before flying.
Wind chart — altitude × time
Color: green < 20 km/h · yellow 20-30 · red >40. Arrows point to where the wind is blowing. Each column = 1 hour. 4 altitudes: 10m surface, 80m first thermal, 1500m (850 hPa) thermal cruise, 3000m (700 hPa) top.
Wind next days (Open-Meteo model)
Wind rose 10m — 2026-04-20
| Date | Morning 08-12h | Midday 12-16h | Evening 16-20h | |||
|---|---|---|---|---|---|---|
| 2026-04-20 | 6 km/h NW | gust 27 | 10 km/h NW | gust 26 | 12 km/h NW | gust 32 |
| 2026-04-21 | 6 km/h N | gust 33 | 11 km/h NW | gust 31 | 10 km/h N | gust 27 |
Colors: green < 15 km/h (optimal) · orange 15-25 · red >25 (flying not recommended). ⚠️ = shear >25 km/h between 10m and 850 hPa (potentially broken thermals).
Takeoff orientations
Green = good orientation · Yellow = possible · Gray = not suitable
Why this site has thermal potential
| Factor | Value | Interpretation |
|---|---|---|
| Hotspot density (5 km) | 12 | High |
| Avg thermal probability | 0.80 | Based on thousands of aggregated IGC flights |
| Solar orientation | 0.57 | Slope faces south in northern hemisphere |
| Own flight history | 0.00 | Thermals detected in platform IGC tracks |
Takeoff description
alti:2450m From landing walk 4h (around 1700m to the summit). Follow the path to 'Jean Collet' refuge. Then go to 'col de la mine de fer' pass but stop at 2100m (sea level). Take to the north, OUT OF PATH, to the summit.
Pilot comments
This mountain site isn't for beginners (flying or walking). You ave to know walking out of path!
Nearby sites
Lac de Crop (54) · Col de Freydane (54) · Prapoutel les 7 laux (53) · Croix de Chamrousse (56) · Chamrousse - l'Aiguille / la Croix (63) · Alpes d'huez (50)