Valerette
📍 Valais , Monthey District · Nearest city: Troistorrents (4 km)
56 XC score / 100 · takeoff at 2019 m · 📍 View on map
Coordinates and external links
46.20620, 6.94799Forecast next days
Updated: 2026-04-19 16:11 UTC · Source: Open-Meteo · Thermal window 10:00–18:00 local time
Día muy favorable para XC, base de cúmulos ~529 m, viento 13 km/h.
base ~529m · wind 13 km/hDía volable, condiciones decentes, base de cúmulos ~787 m, viento 13 km/h.
base ~787m · wind 13 km/hDía volable, condiciones decentes, base de cúmulos ~1254 m, viento 12 km/h.
base ~1254m · wind 12 km/hComposite flyability score (CAPE + LI + wind + precip + low clouds). Cross-check with local pilots before flying.
Detailed hourly weather
2026-04-20⚠️ Marginal · peak 55 at 14h
- Cloud suck alto (91/100) — base bajo freezing con CU
⏰ Useful window: 16:00 – 16:00
| 08 50 ☁️⚠️ | 09 50 ☁️⚠️ | 10 50 ☁️⚠️ | 11 50 | 12 50 ☁️⚠️ | 13 45 ☁️⚠️ | 14 55 ☁️⚠️ | 15 55 ☁️⚠️ | 16 55 ☁️⚠️ | 17 55 ☁️⚠️ | 18 55 ☁️⚠️ | 19 50 ☁️⚠️ | 20 50 ☁️⚠️ |
Peak 14h: CAPE 20 J/kg · LI 0.1 · BL top 1785 m · w* 0.0 m/s · cloud base 2456 m · 0°C at 2540 m · Pro score 52/100 · sun 35° over slope
2026-04-21⚠️ Marginal · peak 55 at 10h
- Cloud suck alto (91/100) — base bajo freezing con CU
| 08 30 ☁️⚠️ | 09 50 ☁️⚠️ | 10 55 ☁️⚠️ | 11 50 ☁️⚠️ | 12 50 ☁️⚠️ | 13 50 ☁️⚠️ | 14 55 ☁️⚠️ | 15 55 ☁️⚠️ | 16 50 ☁️⚠️ | 17 50 ☁️⚠️ | 18 30 ☁️⚠️ | 19 30 ☁️⚠️ | 20 35 ☁️⚠️ |
Peak 10h: CAPE 0 J/kg · LI 2.5 · BL top 675 m · w* 0.0 m/s · cloud base 2531 m · 0°C at 2420 m · Pro score 66/100 · 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: 5.6°C · Td: 2.1°C
LCL (cloud base): 437 m
BL top: 1785 m
0°C level: 2540 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) | 4 | Medium |
| Avg thermal probability | 0.80 | Based on thousands of aggregated IGC flights |
| Solar orientation | 0.53 | Slope faces south in northern hemisphere |
| Own flight history | 0.00 | Thermals detected in platform IGC tracks |
Nearby sites
Les Giettes (34) · Refuge de Chalin (53) · Mex Aiguille (45) · Signal de Soi (56) · Les Pétis (55) · Croix de l Aiguille (61)