Kronberg (Appenzell- Jakobsbad)
📍 Appenzell Innerrhoden , Appenzell Inner Rhodes · Nearest city: Gonten (4 km)
54 XC score / 100 · takeoff at 1636 m · 📍 View on map
Coordinates and external links
47.29140, 9.32711Forecast next days
Updated: 2026-04-19 16:16 UTC · Source: Open-Meteo · Thermal window 10:00–18:00 local time
Día volable, condiciones decentes, base de cúmulos ~838 m, viento 12 km/h.
base ~838m · wind 12 km/hCondiciones marginales, base de cúmulos ~770 m, viento 16 km/h.
base ~770m · wind 16 km/h · precip 0.3mmCondiciones marginales, base de cúmulos ~1176 m, viento 20 km/h.
base ~1176m · wind 20 km/hComposite flyability score (CAPE + LI + wind + precip + low clouds). Cross-check with local pilots before flying.
Detailed hourly weather
2026-04-20❌ Not recommended · peak 60 at 18h
- Cobertura nubosa >85% — sin radiación para disparar
- Cloud suck alto (100/100) — base bajo freezing con CU
| 08 45 ☁️⚠️ | 09 55 ☁️⚠️ | 10 45 ☁️⚠️ | 11 55 ☁️⚠️ | 12 45 ☁️⚠️ | 13 45 ☁️⚠️ | 14 40 ☁️⚠️ | 15 50 ☁️⚠️ | 16 40 ☁️⚠️ | 17 55 ☁️⚠️ | 18 60 ☁️⚠️ | 19 55 ☁️⚠️ | 20 50 ☁️⚠️ |
Peak 18h: CAPE 10 J/kg · LI 1.6 · BL top 930 m · w* 0.0 m/s · cloud base 2723 m · 0°C at 2100 m · Pro score 57/100 · sun 10° over slope
2026-04-21❌ Not recommended · peak 50 at 10h
- Cobertura nubosa >85% — sin radiación para disparar
- Cloud suck alto (100/100) — base bajo freezing con CU
| 08 20 ☁️⚠️ | 09 20 ☁️⚠️ | 10 50 ☁️⚠️ | 11 40 ☁️⚠️ | 12 40 ☁️⚠️ | 13 40 ☁️⚠️ | 14 40 ☁️⚠️ | 15 45 ☁️⚠️ | 16 45 ☁️⚠️ | 17 45 ☁️⚠️ | 18 50 ☁️⚠️ | 19 40 ☁️⚠️ | 20 50 ☁️⚠️ |
Peak 10h: CAPE 0 J/kg · LI 3.6 · BL top 645 m · w* 0.0 m/s · cloud base 2023 m · 0°C at 1710 m · Pro score 53/100 · 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: 18:00 (peak of the day)
Surface T: 6.7°C · Td: -2.0°C
LCL (cloud base): 1087 m
BL top: 930 m
0°C level: 2100 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 | 0.72 | 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 |
Upcoming competitions in this country
- PWCA Italy Gemona 2026 · 2026-07-25 – 2026-08-01 · PWCA
Copa del Mundo en Gemona del Friuli, Italia
Takeoff description
All TO's very close to gondola station
Rules and notes
for XC-flights: check restrictions at: http://www.ebenalp.ch/flugsport (download flyer) More info on http://www.flyland.ch. Airspaces in Switzerland are a tough subject, get all the info you can get before flying. DABS (active danger areas etc): www.skybriefing.com/portal/
Nearby sites
Säntis (48) · Ebenalp (Appenzell- Wasserauen) (57) · Stockberg (53) · Hinterrugg (60) · Hoher Kasten (50) · Montlinger Schwamm (43)