Bürgeralm (Aflenz)
📍 Styria , Politischer Bezirk Bruck-Muerzzuschlag · Nearest city: Aflenz Kurort (5 km)
62 XC score / 100 · takeoff at 1756 m · 📍 View on map
Coordinates and external links
47.57900, 15.22620Forecast next days
Updated: 2026-04-19 16:05 UTC · Source: Open-Meteo · Thermal window 10:00–18:00 local time
Día volable, condiciones decentes, base de cúmulos ~731 m, viento fuerte (26 km/h).
base ~731m · wind 26 km/hCondiciones marginales, base de cúmulos ~247 m, viento 20 km/h, precipitación 1.9 mm.
base ~247m · wind 20 km/h · precip 1.9mmCondiciones marginales, base de cúmulos ~1243 m, viento 22 km/h.
base ~1243m · wind 22 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 55 at 9h
- Cobertura nubosa >85% — sin radiación para disparar
- Cloud suck alto (100/100) — base bajo freezing con CU
| 08 50 ☁️⚠️ | 09 55 ☁️⚠️ | 10 55 ☁️⚠️ | 11 50 ☁️⚠️ | 12 30 ☁️⚠️ | 13 53 ☁️⚠️ | 14 53 ☁️⚠️ | 15 53 ☁️⚠️ | 16 48 ☁️⚠️ | 17 48 ☁️⚠️ | 18 38 ☁️⚠️ | 19 48 ☁️⚠️ | 20 50 ☁️⚠️ |
Peak 9h: CAPE 0 J/kg · LI 3.5 · BL top 420 m · w* 0.0 m/s · cloud base 2493 m · 0°C at 1700 m · Pro score 76/100 · sun 30° over slope
2026-04-21⚠️ Marginal · peak 60 at 9h
- Cloud suck alto (92/100) — base bajo freezing con CU
| 08 55 ☁️⚠️ | 09 60 ☁️⚠️ | 10 55 ☁️⚠️ | 11 55 ☁️⚠️ | 12 28 ☁️⚠️ | 13 28 ☁️⚠️ | 14 55 ☁️⚠️ | 15 55 ☁️⚠️ | 16 55 ☁️⚠️ | 17 55 ☁️⚠️ | 18 55 ☁️⚠️ | 19 55 ☁️⚠️ | 20 30 ☁️⚠️ |
Peak 9h: CAPE 10 J/kg · LI 2.5 · BL top 530 m · w* 0.0 m/s · cloud base 2081 m · 0°C at 1360 m · Pro score 72/100 · 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: 0.8°C · Td: -5.1°C
LCL (cloud base): 737 m
BL top: 420 m
0°C level: 1700 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 | 14 km/h NW | gust 77 | 18 km/h NW | gust 64 | 18 km/h NW | gust 64 |
| 2026-04-21 | 8 km/h N | gust 49 | 11 km/h N | gust 42 | 10 km/h N | gust 52 |
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) | 12 | High |
| Avg thermal probability | 0.79 | Based on thousands of aggregated IGC flights |
| Solar orientation | 0.45 | 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
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Schiessling (45) · Gemeindealpe Mitterbach (36) · Mugl (9) · Polster (76) · Oetscher (32) · Holzbauer (52)