Riederalp/ Greicheralp
📍 Valais , Brig District · Nearest city: Naters (7 km)
60 XC score / 100 · takeoff at 1880 m · 📍 View on map
Coordinates and external links
46.37700, 8.03090Forecast next days
Updated: 2026-04-20 12:34 UTC · Source: Open-Meteo · Thermal window 10:00–18:00 local time
Día volable, condiciones decentes, base de cúmulos ~1415 m, viento 17 km/h.
base ~1415m · wind 17 km/hDía muy favorable para XC, base de cúmulos ~1362 m, viento 12 km/h.
base ~1362m · wind 12 km/hDía muy favorable para XC, base de cúmulos ~1043 m, viento 8 km/h.
base ~1043m · wind 8 km/hDía volable, condiciones decentes, base de cúmulos ~1879 m, viento 8 km/h.
base ~1879m · wind 8 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 63 at 16h
- Cloud suck alto (100/100) — base bajo freezing con CU
| 08 50 | 09 50 | 10 50 ☁️⚠️ | 11 50 ☁️⚠️ | 12 55 ☁️⚠️ | 13 55 ☁️⚠️ | 14 50 ☁️⚠️ | 15 55 ☁️⚠️ | 16 63 ☁️⚠️ | 17 48 ☁️⚠️ | 18 45 ☁️⚠️ | 19 50 ☁️⚠️ | 20 50 ☁️⚠️ |
Peak 16h: CAPE 10 J/kg · LI -0.3 · BL top 2445 m · w* 0.0 m/s · cloud base 3755 m · 0°C at 2730 m · Pro score 58/100 · sun 24° over slope
2026-04-21⚠️ Marginal · peak 58 at 16h
- Cloud suck alto (66/100) — base bajo freezing con CU
| 08 30 | 09 50 | 10 50 ☁️⚠️ | 11 50 ☁️⚠️ | 12 50 ☁️⚠️ | 13 50 ☁️⚠️ | 14 55 ☁️⚠️ | 15 45 ☁️⚠️ | 16 58 ☁️⚠️ | 17 45 ☁️⚠️ | 18 40 ☁️⚠️ | 19 50 ☁️⚠️ | 20 50 ☁️⚠️ |
Peak 16h: CAPE 10 J/kg · LI -0.2 · BL top 2360 m · w* 0.0 m/s · cloud base 3905 m · 0°C at 2710 m · Pro score 64/100 · sun 24° 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: 16:00 (peak of the day)
Surface T: 8.9°C · Td: -6.1°C
LCL (cloud base): 1875 m
BL top: 2445 m
0°C level: 2730 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) | 7 | Medium |
| Avg thermal probability | 0.86 | Based on thousands of aggregated IGC flights |
| Solar orientation | 0.45 | Slope faces south in northern hemisphere |
| Own flight history | 0.00 | Thermals detected in platform IGC tracks |
Takeoff description
nice meadow with windsock just a few minutes walk from cable car terminus. The house thermal is to the left of launch beyond the last mast of the cable car.
Rules and notes
For detailed info see: >> http://www.paraglidingearth.com/en-html/index.php?site=6604 Airspaces in Switzerland are a tough subject, get all the info you can get before flying: http://www.flyland.ch. DABS (active danger areas etc): https://www.skybriefing.com/portal/
Pilot comments
This site is mostly used in spring, when the gondola 'Fiesch-Kühboden' is operating on a very limited schedule due to maintenance. All pertinent info can be found here: http://www.paraglidingearth.com/en-html/index.php?site=6604 >>> a most comprehensive 'guide' to flying here: http://flyfiesch.co.nf/ by Rob Smith
Nearby sites
Fiesch -Kuehboden (Heimat- Galfera) (71) · Brig- Rosswald -Fleschboden (32) · Bellwald - Ried (54) · Bellwald - Steibenkreuz (55) · Jungfraujoch (50) · Bietschhorn (48)