Chou (tsou)
📍 Valais , Martigny District · Nearest city: Saillon (3 km)
56 XC score / 100 · takeoff at 1455 m · 📍 View on map
Coordinates and external links
46.19180, 7.16051Forecast next days
Updated: 2026-04-19 16:13 UTC · Source: Open-Meteo · Thermal window 10:00–18:00 local time
Día muy favorable para XC, base de cúmulos ~1012 m, viento 11 km/h.
base ~1012m · wind 11 km/hDía muy favorable para XC, base de cúmulos ~1275 m, viento 12 km/h.
base ~1275m · wind 12 km/hDía volable, condiciones decentes, base de cúmulos ~1890 m, viento 10 km/h.
base ~1890m · 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 70 at 13h
- Cobertura nubosa >85% — sin radiación para disparar
- Cloud suck alto (73/100) — base bajo freezing con CU
⏰ Useful window: 12:00 – 15:00
| 08 50 ☁️⚠️ | 09 50 ☁️⚠️ | 10 50 ☁️⚠️ | 11 60 | 12 45 ☁️⚠️ | 13 70 | 14 70 | 15 70 | 16 55 ☁️⚠️ | 17 50 ☁️⚠️ | 18 50 ☁️⚠️ | 19 50 ☁️⚠️ | 20 50 ☁️⚠️ |
Peak 13h: CAPE 110 J/kg · LI 1.0 · BL top 1140 m · w* 8.0 m/s · cloud base 2305 m · 0°C at 2530 m · Pro score 66/100 · sun 39° over slope
2026-04-21⚠️ Marginal · peak 60 at 15h
- Cloud suck alto (70/100) — base bajo freezing con CU
| 08 30 | 09 50 | 10 50 | 11 55 ☁️⚠️ | 12 55 ☁️⚠️ | 13 55 ☁️⚠️ | 14 55 ☁️⚠️ | 15 60 ☁️⚠️ | 16 60 ☁️⚠️ | 17 60 ☁️⚠️ | 18 55 ☁️⚠️ | 19 35 ☁️⚠️ | 20 35 ☁️⚠️ |
Peak 15h: CAPE 10 J/kg · LI 1.7 · BL top 1860 m · w* 0.0 m/s · cloud base 2867 m · 0°C at 2490 m · Pro score 63/100 · sun 31° 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: 13:00 (peak of the day)
Surface T: 11.5°C · Td: 4.7°C
LCL (cloud base): 850 m
BL top: 1140 m
0°C level: 2530 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 | 0.82 | 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 |
Nearby sites
Loutze (53) · Dugny (74) · Randonnaz (56) · Dent de Fully (49) · La Baye (47) · Planuit (45)