Roggenstock-1770
📍 Schwyz , Bezirk Schwyz · Nearest city: Unteriberg (4 km)
57 XC score / 100 · takeoff at 1770 m · 📍 View on map
Coordinates and external links
47.02320, 8.78959Forecast next days
Updated: 2026-04-21 01:22 UTC · Source: Open-Meteo · Thermal window 10:00–18:00 local time
Flyable day, decent conditions, cloud base ~820 m, wind 14 km/h.
base ~820m · wind 14 km/hFlyable day, decent conditions, cloud base ~1069 m, wind 15 km/h.
base ~1069m · wind 15 km/hFlyable day, decent conditions, cloud base ~1905 m, wind 10 km/h.
base ~1905m · 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 55 at 18h
- Cloud cover >85% — no radiation to trigger thermals
- High cloud suck (100/100) — base below freezing with CU
| 08 20 ☁️⚠️ | 09 40 ☁️⚠️ | 10 40 ☁️⚠️ | 11 40 ☁️⚠️ | 12 40 ☁️⚠️ | 13 40 ☁️⚠️ | 14 40 ☁️⚠️ | 15 40 ☁️⚠️ | 16 40 ☁️⚠️ | 17 45 ☁️⚠️ | 18 55 ☁️⚠️ | 19 50 ☁️⚠️ | 20 50 ☁️⚠️ |
Peak 18h: CAPE 10 J/kg · LI 1.7 · BL top 950 m · w* 0.0 m/s · cloud base 2570 m · 0°C at 1990 m · Pro score 49/100 · sun 10° 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: 18:00 (peak of the day)
Surface T: 4.2°C · Td: -2.2°C
LCL (cloud base): 800 m
BL top: 950 m
0°C level: 1990 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) | 10 | High |
| Avg thermal probability | 0.76 | Based on thousands of aggregated IGC flights |
| Solar orientation | 0.33 | Slope faces south in northern hemisphere |
| Own flight history | 0.00 | Thermals detected in platform IGC tracks |
Upcoming competitions in this country
- PWCA Italy Gemona 2026 · 2026-07-25 – 2026-08-01 · PWCA
Copa del Mundo en Gemona del Friuli, Italia
Rules and notes
Airspaces in Switzerland are a tough subject, get all the info you can get before flying. More info on http://www.flyland.ch.
Nearby sites
Weglosen (5) · Hoch-Ybrig (48) · Spirstock (48) · Ilgisalp (43) · Forstberg (51) · Rotenflue (67)