Hinterrugg
📍 Saint Gallen , Wahlkreis Sarganserland · Nearest city: Walenstadt (3 km)
60 XC score / 100 · takeoff at 2183 m · 📍 View on map
Coordinates and external links
47.15280, 9.30425Forecast next days
Updated: 2026-04-21 01:19 UTC · Source: Open-Meteo · Thermal window 10:00–18:00 local time
Marginal conditions, cloud base ~452 m, wind 16 km/h.
base ~452m · wind 16 km/hFlyable day, decent conditions, cloud base ~872 m, wind 19 km/h.
base ~872m · wind 19 km/hMarginal conditions, cloud base ~2105 m, wind 8 km/h.
base ~2105m · wind 8 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 10h
- High cloud suck (99/100) — base below freezing with CU
| 08 35 ☁️⚠️ | 09 25 ☁️⚠️ | 10 55 ☁️⚠️ | 11 50 ☁️⚠️ | 12 50 ☁️⚠️ | 13 50 ☁️⚠️ | 14 50 ☁️⚠️ | 15 50 ☁️⚠️ | 16 55 ☁️⚠️ | 17 55 ☁️⚠️ | 18 50 ☁️⚠️ | 19 50 ☁️⚠️ | 20 50 ☁️⚠️ |
Peak 10h: CAPE 10 J/kg · LI 3.6 · BL top 650 m · w* 0.0 m/s · cloud base 2720 m · 0°C at 1760 m · Pro score 50/100 · sun 35° 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: 10:00 (peak of the day)
Surface T: -0.9°C · Td: -5.2°C
LCL (cloud base): 537 m
BL top: 650 m
0°C level: 1760 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) | 5 | Medium |
| Avg thermal probability | 0.75 | Based on thousands of aggregated IGC flights |
| Solar orientation | 0.60 | 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
underneath LS-R43! 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): http://www.skybriefing.com/portal/
Nearby sites
Unterwasser (5) · Landeplatz Flums (5) · Prodkamm (63) · Glannachopf (44) · Flums -Schönhalden (Schoenhalden) (42) · Grabserberg (38)