Plan du fou
📍 Valais , Conthey District · Nearest city: Basse-Nendaz (6 km)
55 XC score / 100 · takeoff at 2447 m · 📍 View on map
Coordinates and external links
46.14090, 7.29533Forecast next days
Updated: 2026-04-19 16:15 UTC · Source: Open-Meteo · Thermal window 10:00–18:00 local time
Día muy favorable para XC, base de cúmulos ~1409 m, viento 15 km/h.
base ~1409m · wind 15 km/hDía volable, condiciones decentes, base de cúmulos ~1259 m, viento 19 km/h.
base ~1259m · wind 19 km/hDía muy favorable para XC, base de cúmulos ~1976 m, viento 14 km/h.
base ~1976m · wind 14 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 18h
- Cobertura nubosa >85% — sin radiación para disparar
- Cloud suck alto (100/100) — base bajo freezing con CU
| 08 50 ☁️⚠️ | 09 50 ☁️⚠️ | 10 50 ☁️⚠️ | 11 50 ☁️⚠️ | 12 50 ☁️⚠️ | 13 50 ☁️⚠️ | 14 50 ☁️⚠️ | 15 45 ☁️⚠️ | 16 30 ☁️⚠️ | 17 45 ☁️⚠️ | 18 55 ☁️⚠️ | 19 50 ☁️⚠️ | 20 50 ☁️⚠️ |
Peak 18h: CAPE 20 J/kg · LI 0.4 · BL top 880 m · w* 0.0 m/s · cloud base 3109 m · 0°C at 2600 m · Pro score 49/100 · sun 10° over slope
2026-04-21⚠️ Marginal · peak 60 at 13h
- Cloud suck alto (85/100) — base bajo freezing con CU
| 08 30 ☁️⚠️ | 09 30 ☁️⚠️ | 10 30 ☁️⚠️ | 11 50 ☁️⚠️ | 12 55 ☁️⚠️ | 13 60 ☁️⚠️ | 14 60 ☁️⚠️ | 15 50 ☁️⚠️ | 16 45 ☁️⚠️ | 17 55 ☁️⚠️ | 18 50 ☁️⚠️ | 19 50 ☁️⚠️ | 20 55 ☁️⚠️ |
Peak 13h: CAPE 10 J/kg · LI 2.5 · BL top 1065 m · w* 0.0 m/s · cloud base 3622 m · 0°C at 2020 m · Pro score 63/100 · sun 39° 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: 18:00 (peak of the day)
Surface T: 2.8°C · Td: -2.5°C
LCL (cloud base): 662 m
BL top: 880 m
0°C level: 2600 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) | 9 | High |
| Avg thermal probability | 0.81 | Based on thousands of aggregated IGC flights |
| Solar orientation | 0.19 | Slope faces south in northern hemisphere |
| Own flight history | 0.00 | Thermals detected in platform IGC tracks |
Takeoff description
Ca. 200 m on the left side of the top station of the new cable car coming from Siviez. Best takeoff direction is facing eastwards. For good pilots the takeoff on the west side is an other possibility. But it is a very short takeoff track followed by steep cliffs. Better have a stronger wind to take off westwards!
Rules and notes
Take care of the CTR Sion. More infos on lagopedes.ch. Phone for checking CTR-activity +41 27 324 21 10. Checking the CTR-activity every 30 minutes is nescessery when entering the CTR. If you are just flying from plan du fou to Siviez, you will not enter the CTR. This is only important when you are flying to Haute-Nendaz or Basse-Nendaz.
Nearby sites
Dent de Nendaz-2430 (60) · Haute-Nendaz - Tracouet (46) · Novelly-2360 (52) · Verbier - Croix de Coeur_Savolyeres (68) · Verbier - Ruinettes _ Fontanets_Attelas (67) · Mayens de Veysonnaz (45)