Mederalp
📍 Bern , Interlaken-Oberhasli District · Nearest city: Lauterbrunnen (4 km)
57 XC score / 100 · takeoff at 1660 m · 📍 View on map
Coordinates and external links
46.62550, 7.88388Forecast next days
Updated: 2026-04-21 01:22 UTC · Source: Open-Meteo · Thermal window 10:00–18:00 local time
Very favorable day for XC, cloud base ~876 m, wind 12 km/h.
base ~876m · wind 12 km/hFlyable day, decent conditions, cloud base ~1297 m, wind 12 km/h.
base ~1297m · wind 12 km/hFlyable day, decent conditions, cloud base ~1966 m, wind 10 km/h.
base ~1966m · wind 10 km/hComposite flyability score (CAPE + LI + wind + precip + low clouds). Cross-check with local pilots before flying.
Detailed hourly weather
2026-04-21❌ Not recommended · peak 60 at 12h
- Cloud cover >85% — no radiation to trigger thermals
- High cloud suck (100/100) — base below freezing with CU
⏰ Useful window: 14:00 – 16:00
| 08 35 ☁️⚠️ | 09 50 ☁️⚠️ | 10 55 ☁️⚠️ | 11 55 ☁️⚠️ | 12 60 ☁️⚠️ | 13 60 ☁️⚠️ | 14 45 ☁️⚠️ | 15 55 ☁️⚠️ | 16 55 ☁️⚠️ | 17 45 ☁️⚠️ | 18 45 ☁️⚠️ | 19 45 ☁️⚠️ | 20 40 ☁️⚠️ |
Peak 12h: CAPE 10 J/kg · LI 1.0 · BL top 1055 m · w* 0.0 m/s · cloud base 2522 m · 0°C at 2160 m · sun 40° 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: 12:00 (peak of the day)
Surface T: 5.1°C · Td: -1.8°C
LCL (cloud base): 862 m
BL top: 1055 m
0°C level: 2160 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) | 8 | High |
| Avg thermal probability | 0.79 | Based on thousands of aggregated IGC flights |
| Solar orientation | 0.38 | 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.
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