Kulm
📍 Styria , Politischer Bezirk Hartberg-Fuerstenfeld · Nearest city: Siegersdorf bei Herberstein (4 km)
53 XC score / 100 · takeoff at 904 m · 📍 View on map
Coordinates and external links
47.22820, 15.76210Forecast next days
Updated: 2026-04-21 01:29 UTC · Source: Open-Meteo · Thermal window 10:00–18:00 local time
Flyable day, decent conditions, cloud base ~1169 m, wind 12 km/h.
base ~1169m · wind 12 km/hFlyable day, decent conditions, cloud base ~2113 m, wind 17 km/h.
base ~2113m · wind 17 km/hMarginal conditions, cloud base ~2022 m, wind 22 km/h.
base ~2022m · wind 22 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 60 at 9h
- High cloud suck (94/100) — base below freezing with CU
⏰ Useful window: 14:00 – 15:00
| 08 55 ☁️⚠️ | 09 60 ☁️⚠️ | 10 60 ☁️⚠️ | 11 60 ☁️⚠️ | 12 60 ☁️⚠️ | 13 55 ☁️⚠️ | 14 55 ☁️⚠️ | 15 55 ☁️⚠️ | 16 55 ☁️⚠️ | 17 55 ☁️⚠️ | 18 55 ☁️⚠️ | 19 55 ☁️⚠️ | 20 50 ☁️⚠️ |
Peak 9h: CAPE 20 J/kg · LI 1.6 · BL top 575 m · w* 0.0 m/s · cloud base 1966 m · 0°C at 1630 m · Pro score 63/100 · 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: 09:00 (peak of the day)
Surface T: 8.0°C · Td: -0.5°C
LCL (cloud base): 1062 m
BL top: 575 m
0°C level: 1630 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) | 7 | Medium |
| Avg thermal probability | 0.76 | Based on thousands of aggregated IGC flights |
| Solar orientation | 0.39 | 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
Kulm 1 (5) · Hausberg (34) · Masenberg (2) · Bründlkogel (44) · Schöckl near Graz (56) · Hängegleiter Startrampe Nord (5)