Annecy - Planfait
📍 Rhone-Alpes , Departement de la Haute-Savoie · Nearest city: Talloires (2 km)
55 XC score / 100 · takeoff at 956 m · 📍 View on map
Coordinates and external links
45.85320, 6.22299Forecast next days
Updated: 2026-04-21 01:25 UTC · Source: Open-Meteo · Thermal window 10:00–18:00 local time
Flyable day, decent conditions, cloud base ~1234 m, wind 15 km/h.
base ~1234m · wind 15 km/hFlyable day, decent conditions, cloud base ~1291 m, wind 14 km/h.
base ~1291m · wind 14 km/hVery favorable day for XC, cloud base ~1595 m, wind 10 km/h.
base ~1595m · wind 10 km/hComposite flyability score (CAPE + LI + wind + precip + low clouds). Cross-check with local pilots before flying.
Detailed hourly weather
2026-04-21⚠️ Marginal · peak 60 at 14h
- Very stable day (CAPE<50, LI>2) — no thermals
| 08 35 | 09 35 | 10 55 | 11 55 | 12 55 | 13 55 | 14 60 | 15 40 | 16 35 ☁️⚠️ | 17 35 ☁️⚠️ | 18 35 ☁️⚠️ | 19 30 | 20 30 |
Peak 14h: CAPE 10 J/kg · LI 3.7 · BL top 1115 m · w* 0.0 m/s · cloud base 2006 m · 0°C at 2550 m · Pro score 58/100 · 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: 14:00 (peak of the day)
Surface T: 14.5°C · Td: 6.1°C
LCL (cloud base): 1050 m
BL top: 1115 m
0°C level: 2550 m
Approximate profile from surface variables + synoptic levels. Red lines = temperature, dashed blue = dew point. Orange bands = detected inversions.
🌬 Daily wind (next days)
Daily summary (10m wind). Full hour × altitude chart is being added progressively.
Takeoff orientations
Green = good orientation · Yellow = possible · Gray = not suitable
Why this site has thermal potential
| Factor | Value | Interpretation |
|---|---|---|
| Hotspot density (5 km) | 6 | Medium |
| Avg thermal probability | 0.91 | Based on thousands of aggregated IGC flights |
| Solar orientation | 0.38 | Slope faces south in northern hemisphere |
| Own flight history | 0.00 | Thermals detected in platform IGC tracks |
Takeoff description
during summer holidays, the site/ launch can be very busy.
Rules and notes
air space info (in FR): http://www.ffvvespaceaerien.org/?p=1018
Nearby sites
Col des Frêtes (53) · Lancrenaz (45) · Chalet de la Froulaz (49) · Atterissage parapente SIV (5) · Montmin (Col de la Forclaz) (47) · Chalet de l'Aulp (48)