Zwölferhorn
📍 Salzburg , Politischer Bezirk Salzburg-Umgebung · Nearest city: Sankt Gilgen (3 km)
57 XC score / 100 · takeoff at 1496 m · 📍 View on map
Coordinates and external links
47.74280, 13.35190Forecast next days
Updated: 2026-04-19 16:11 UTC · Source: Open-Meteo · Thermal window 10:00–18:00 local time
Día volable, condiciones decentes, base de cúmulos ~633 m, viento 19 km/h.
base ~633m · wind 19 km/hDía volable, condiciones decentes, base de cúmulos ~731 m, viento 14 km/h.
base ~731m · wind 14 km/hCondiciones marginales, base de cúmulos ~1318 m, viento 13 km/h.
base ~1318m · wind 13 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 48 at 19h
- Cobertura nubosa >85% — sin radiación para disparar
- Cloud suck alto (100/100) — base bajo freezing con CU
| 08 40 ☁️⚠️ | 09 40 ☁️⚠️ | 10 40 ☁️⚠️ | 11 40 ☁️⚠️ | 12 40 ☁️⚠️ | 13 45 ☁️⚠️ | 14 35 ☁️⚠️ | 15 40 ☁️⚠️ | 16 38 ☁️⚠️ 🏔️ | 17 30 ☁️⚠️ 🏔️ | 18 35 ☁️⚠️ 🏔️ | 19 48 ☁️⚠️ | 20 40 ☁️⚠️ |
Peak 19h: CAPE 0 J/kg · LI -0.1 · BL top 165 m · w* 0.0 m/s · cloud base 2346 m · 0°C at 1850 m · Pro score 51/100
2026-04-21⚠️ Marginal · peak 55 at 14h
- Cloud suck alto (99/100) — base bajo freezing con CU
| 08 30 ☁️⚠️ | 09 30 ☁️⚠️ | 10 40 ☁️⚠️ | 11 40 ☁️⚠️ | 12 50 ☁️⚠️ | 13 50 ☁️⚠️ | 14 55 ☁️⚠️ | 15 55 ☁️⚠️ | 16 50 ☁️⚠️ | 17 55 ☁️⚠️ | 18 50 ☁️⚠️ | 19 50 ☁️⚠️ | 20 50 ☁️⚠️ |
Peak 14h: CAPE 0 J/kg · LI 2.3 · BL top 2085 m · w* 0.0 m/s · cloud base 2408 m · 0°C at 1190 m · Pro score 66/100 · sun 34° 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: 19:00 (peak of the day)
Surface T: 4.7°C · Td: -2.1°C
LCL (cloud base): 850 m
BL top: 165 m
0°C level: 1850 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) | 10 | High |
| Avg thermal probability | 0.78 | 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
Takeoff description
50m above gondola station additional TO: 'Jagafleck' N47.7439 E 13.3589, 1365m
Rules and notes
for XC-flights: observe airspace regulations!
Pilot comments
act wx: www.12erhorn.at/html/wetter.html Fcst: www.bergfex.at/zwoelferhorn/wetter/berg/ more links: www.paragleiter.com/wetter/wetter-regional/
Nearby sites
Schafberg (68) · Filbling (41) · Regenspitz (47) · Trattberg (Abtenau) (47) · Schlencken (38) · Abtenau (51)