Mont Noble-2640
📍 Valais , Sierre District · Nearest city: Grone (6 km)
57 XC score / 100 · takeoff at 2640 m · 📍 View on map
Coordinates and external links
46.20710, 7.48787Forecast next days
Updated: 2026-04-21 01:23 UTC · Source: Open-Meteo · Thermal window 10:00–18:00 local time
Flyable day, decent conditions, cloud base ~991 m, strong wind (27 km/h).
base ~991m · wind 27 km/hFlyable day, decent conditions, cloud base ~1383 m, wind 19 km/h.
base ~1383m · wind 19 km/hFlyable day, decent conditions, cloud base ~2338 m, wind 11 km/h.
base ~2338m · wind 11 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 55 at 14h
- High cloud suck (92/100) — base below freezing with CU
| 08 30 ☁️⚠️ | 09 30 ☁️⚠️ | 10 50 ☁️⚠️ | 11 50 ☁️⚠️ | 12 50 ☁️⚠️ | 13 50 ☁️⚠️ | 14 55 ☁️⚠️ | 15 55 ☁️⚠️ | 16 45 ☁️⚠️ | 17 45 ☁️⚠️ | 18 50 ☁️⚠️ | 19 50 ☁️⚠️ | 20 50 ☁️⚠️ |
Peak 14h: CAPE 10 J/kg · LI 1.6 · BL top 1325 m · w* 0.0 m/s · cloud base 3752 m · 0°C at 2370 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: 2.1°C · Td: -6.8°C
LCL (cloud base): 1112 m
BL top: 1325 m
0°C level: 2370 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) | 9 | High |
| Avg thermal probability | 0.85 | Based on thousands of aggregated IGC flights |
| Solar orientation | 0.20 | Slope faces south in northern hemisphere |
| Own flight history | 0.00 | Thermals detected in platform IGC tracks |
Pilot comments
More info on http://www.flyland.ch. Airspaces in Switzerland are a thought subject, get all the info you can get befire flying.
Nearby sites
Mont Noble-2440 (53) · Alpage Louere (5) · Roc d\'Orzival (53) · Crêt-du-Midi (62) · Becs De Bosson (5) · Atterrissage Chalais (5)