Serpaton - Gresse en Vercors
📍 Rhone-Alpes , Departement de l'Isere · Nearest city: Le Gua (12 km)
55 XC score / 100 · takeoff at 1577 m · 📍 View on map
Coordinates and external links
44.91030, 5.59072Forecast next days
Updated: 2026-04-19 16:13 UTC · Source: Open-Meteo · Thermal window 10:00–18:00 local time
Día volable, condiciones decentes, base de cúmulos ~820 m, viento 15 km/h.
base ~820m · wind 15 km/hDía volable, condiciones decentes, base de cúmulos ~920 m, viento 15 km/h.
base ~920m · wind 15 km/hCondiciones marginales, base de cúmulos ~1245 m, viento 9 km/h.
base ~1245m · wind 9 km/hComposite flyability score (CAPE + LI + wind + precip + low clouds). Cross-check with local pilots before flying.
Detailed hourly weather
2026-04-20✅ Flyable · peak 55 at 15h
| 08 30 | 09 50 | 10 50 | 11 50 | 12 50 | 13 50 | 14 50 | 15 55 | 16 40 | 17 50 | 18 55 | 19 50 | 20 50 |
Peak 15h: CAPE 0 J/kg · LI 0.8 · BL top 1375 m · w* 0.0 m/s · cloud base 2639 m · 0°C at 2880 m · Pro score 70/100 · sun 31° over slope
2026-04-21⚠️ Marginal · peak 55 at 17h
- Día muy estable (CAPE<50, LI>2) — sin térmicas
| 08 30 ☁️⚠️ | 09 30 ☁️⚠️ | 10 30 | 11 30 | 12 30 | 13 35 | 14 35 | 15 30 ☁️⚠️ | 16 50 ☁️⚠️ | 17 55 ☁️⚠️ | 18 55 | 19 55 | 20 35 |
Peak 17h: CAPE 10 J/kg · LI 3.8 · BL top 985 m · w* 0.0 m/s · cloud base 2452 m · 0°C at 2910 m · Pro score 47/100 · sun 18° 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: 15:00 (peak of the day)
Surface T: 11.8°C · Td: 3.3°C
LCL (cloud base): 1062 m
BL top: 1375 m
0°C level: 2880 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) | 8 | High |
| Avg thermal probability | 0.80 | Based on thousands of aggregated IGC flights |
| Solar orientation | 0.33 | Slope faces south in northern hemisphere |
| Own flight history | 0.00 | Thermals detected in platform IGC tracks |
Takeoff description
Very big, with grass. early in season you can find snow on the road. Be sure it's not, if not you will walk long time...
Pilot comments
See local indications at the parking before take off. Local pilots use it with south wind, to go to the north. Best flights: landing in the leman lake's district. Another flight: turn 'la dent du chat' summit, at the Chartreuse extreme north, and coming back.
Nearby sites
Le Col Vert (46) · Villard - cote 2000 (54) · Belvedere (51) · Pre valet la sarna (5) · Lans-en-Vercors 100m (49) · Varces - Pré du Four (56)