Col de la Colombiere
📍 Rhone-Alpes , Departement de la Haute-Savoie · Nearest city: Le Grand-Bornand (6 km)
60 XC score / 100 · takeoff at 1906 m · 📍 View on map
Coordinates and external links
45.98280, 6.48442Forecast next days
Updated: 2026-04-20 12:34 UTC · Source: Open-Meteo · Thermal window 10:00–18:00 local time
Día muy favorable para XC, base de cúmulos ~918 m, viento 10 km/h.
base ~918m · wind 10 km/hDía muy favorable para XC, base de cúmulos ~798 m, viento 13 km/h.
base ~798m · wind 13 km/hDía volable, condiciones decentes, base de cúmulos ~988 m, viento 10 km/h.
base ~988m · wind 10 km/hDía volable, condiciones decentes, base de cúmulos ~1212 m, viento 10 km/h.
base ~1212m · wind 10 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 55 at 11h
- Cobertura nubosa >85% — sin radiación para disparar
- Cloud suck alto (100/100) — base bajo freezing con CU
| 08 50 | 09 50 | 10 50 | 11 55 | 12 50 ☁️⚠️ | 13 50 ☁️⚠️ | 14 45 ☁️⚠️ | 15 45 ☁️⚠️ | 16 55 ☁️⚠️ | 17 55 ☁️⚠️ | 18 50 ☁️⚠️ | 19 55 ☁️⚠️ | 20 50 |
Peak 11h: CAPE 0 J/kg · LI 0.8 · BL top 755 m · w* 0.0 m/s · cloud base 2631 m · 0°C at 2670 m · Pro score 66/100 · sun 39° over slope
2026-04-21⚠️ Marginal · peak 55 at 10h
- Cloud suck alto (96/100) — base bajo freezing con CU
| 08 35 | 09 35 | 10 55 | 11 50 ☁️⚠️ | 12 50 ☁️⚠️ | 13 45 ☁️⚠️ | 14 45 ☁️⚠️ | 15 55 ☁️⚠️ | 16 35 ☁️⚠️ | 17 35 ☁️⚠️ | 18 40 ☁️⚠️ | 19 35 ☁️⚠️ | 20 35 ☁️⚠️ |
Peak 10h: CAPE 0 J/kg · LI 2.7 · BL top 480 m · w* 0.0 m/s · cloud base 2306 m · 0°C at 2480 m · Pro score 63/100 · 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: 11:00 (peak of the day)
Surface T: 5.4°C · Td: -0.4°C
LCL (cloud base): 725 m
BL top: 755 m
0°C level: 2670 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 | 0.84 | 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
Good for soaring at the end of the day.
Nearby sites
le Grand Bornand (56) · brizon (45) · La Clusaz (54) · Solaison (45) · La Clusaz - Crêt du Loup (54) · Cordon - Plateau des Benets (46)