Gelderkogel
📍 Styria , Politischer Bezirk Weiz · Nearest city: Passail (4 km)
65 XC score / 100 · takeoff at 1116 m · 📍 View on map
Coordinates and external links
47.30360, 15.47940Forecast next days
Updated: 2026-04-19 16:02 UTC · Source: Open-Meteo · Thermal window 10:00–18:00 local time
Día muy favorable para XC, base de cúmulos ~1406 m, viento 16 km/h.
base ~1406m · wind 16 km/hDía volable, condiciones decentes, base de cúmulos ~1158 m, viento 19 km/h.
base ~1158m · wind 19 km/hCondiciones marginales, base de cúmulos ~1922 m, viento 19 km/h.
base ~1922m · wind 19 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 63 at 16h
- Cobertura nubosa >85% — sin radiación para disparar
- Cloud suck alto (100/100) — base bajo freezing con CU
| 08 50 ☁️⚠️ | 09 50 ☁️⚠️ | 10 50 ☁️⚠️ | 11 40 ☁️⚠️ | 12 53 ☁️⚠️ | 13 53 ☁️⚠️ | 14 53 ☁️⚠️ | 15 53 ☁️⚠️ | 16 63 | 17 63 | 18 63 | 19 63 | 20 55 |
Peak 16h: CAPE 250 J/kg · LI -1.0 · BL top 350 m · w* 6.6 m/s · cloud base 1478 m · 0°C at 2010 m · Pro score 68/100 · sun 24° over slope
2026-04-21⚠️ Marginal · peak 60 at 9h
- Cloud suck alto (91/100) — base bajo freezing con CU
| 08 55 | 09 60 ☁️⚠️ | 10 60 ☁️⚠️ | 11 55 ☁️⚠️ | 12 60 ☁️⚠️ | 13 60 ☁️⚠️ | 14 60 ☁️⚠️ | 15 55 ☁️⚠️ | 16 50 ☁️⚠️ | 17 55 ☁️⚠️ | 18 55 ☁️⚠️ | 19 55 ☁️⚠️ | 20 50 ☁️⚠️ |
Peak 9h: CAPE 10 J/kg · LI 1.7 · BL top 655 m · w* 0.0 m/s · cloud base 1691 m · 0°C at 1570 m · Pro score 69/100 · sun 30° 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: 7.3°C · Td: 4.4°C
LCL (cloud base): 362 m
BL top: 350 m
0°C level: 2010 m
Approximate profile from surface variables + synoptic levels. Red lines = temperature, dashed blue = dew point. Orange bands = detected inversions.
Wind chart — altitude × time
Color: green < 20 km/h · yellow 20-30 · red >40. Arrows point to where the wind is blowing. Each column = 1 hour. 4 altitudes: 10m surface, 80m first thermal, 1500m (850 hPa) thermal cruise, 3000m (700 hPa) top.
Wind next days (Open-Meteo model)
Wind rose 10m — 2026-04-20
| Date | Morning 08-12h | Midday 12-16h | Evening 16-20h | |||
|---|---|---|---|---|---|---|
| 2026-04-20 | 13 km/h NW | gust 46 | 12 km/h W | gust 44 | 6 km/h S | gust 31 |
| 2026-04-21 | 9 km/h NW | gust 34 | 12 km/h N | gust 36 | 12 km/h N | gust 40 |
Colors: green < 15 km/h (optimal) · orange 15-25 · red >25 (flying not recommended). ⚠️ = shear >25 km/h between 10m and 850 hPa (potentially broken thermals).
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 | 0.77 | Based on thousands of aggregated IGC flights |
| Solar orientation | 0.65 | 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
Pilot comments
imported from http://xc.dhv.de
Nearby sites
Bründlkogel (44) · Schöckl near Graz (56) · Hausberg (34) · Mugl (9) · Kulm (53) · Masenberg (2)