Crêt-du-Midi
📍 Valais , Sierre District · Nearest city: Chalais (4 km)
62 XC score / 100 · takeoff at 2312 m · 📍 View on map
Coordinates and external links
46.22940, 7.52861Forecast next days
Updated: 2026-04-21 01:17 UTC · Source: Open-Meteo · Thermal window 10:00–18:00 local time
Flyable day, decent conditions, cloud base ~1158 m, strong wind (26 km/h).
base ~1158m · wind 26 km/hFlyable day, decent conditions, cloud base ~1676 m, wind 18 km/h.
base ~1676m · wind 18 km/hFlyable day, decent conditions, cloud base ~2318 m, wind 12 km/h.
base ~2318m · wind 12 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 17h
- High cloud suck (94/100) — base below freezing with CU
| 08 30 ☁️⚠️ | 09 50 ☁️⚠️ | 10 50 ☁️⚠️ | 11 55 ☁️⚠️ | 12 55 ☁️⚠️ | 13 55 ☁️⚠️ | 14 55 ☁️⚠️ | 15 55 ☁️⚠️ | 16 50 ☁️⚠️ | 17 60 ☁️⚠️ | 18 55 ☁️⚠️ | 19 50 ☁️⚠️ | 20 50 ☁️⚠️ |
Peak 17h: CAPE 20 J/kg · LI 1.9 · BL top 2300 m · w* 0.0 m/s · cloud base 4049 m · 0°C at 2640 m · Pro score 75/100 · sun 17° 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: 17:00 (peak of the day)
Surface T: 5.5°C · Td: -8.4°C
LCL (cloud base): 1737 m
BL top: 2300 m
0°C level: 2640 m
Approximate profile from surface variables + synoptic levels. Red lines = temperature, dashed blue = dew point. Orange bands = detected inversions.
Wind chart — altitude × time
Color: green < 20 km/h · yellow 20-30 · red >40. Arrows point to where the wind is blowing. Each column = 1 hour. 4 altitudes: 10m surface, 80m first thermal, 1500m (850 hPa) thermal cruise, 3000m (700 hPa) top.
Wind next days (Open-Meteo model)
Wind rose 10m — 2026-04-21
| Date | Morning 08-12h | Midday 12-16h | Evening 16-20h | |||
|---|---|---|---|---|---|---|
| 2026-04-21 | 5 km/h SW | gust 40 | 11 km/h NW | gust 46 | 12 km/h NW | gust 47 |
Colors: green < 15 km/h (optimal) · orange 15-25 · red >25 (flying not recommended). ⚠️ = shear >25 km/h between 10m and 850 hPa (potentially broken thermals).
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 | 0.87 | Based on thousands of aggregated IGC flights |
| Solar orientation | 0.40 | Slope faces south in northern hemisphere |
| Own flight history | 0.00 | Thermals detected in platform IGC tracks |
Nearby sites
Vercorin (49) · Roc d\'Orzival (53) · Atterrissage Chalais (5) · Mont Noble-2440 (53) · Mont Noble-2640 (57) · Becs De Bosson (5)