Burg Altpernstein - Hirschwaldstein
📍 Upper Austria , Politischer Bezirk Kirchdorf an der Krems · Nearest city: Micheldorf in Oberoesterreich (2 km)
54 XC score / 100 · takeoff at 955 m · 📍 View on map
Coordinates and external links
47.88500, 14.16280Forecast 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 ~911 m, viento 21 km/h.
base ~911m · wind 21 km/hNo recomendable para volar, base de cúmulos ~604 m, viento 12 km/h, precipitación 2.3 mm.
base ~604m · wind 12 km/h · precip 2.3mmCondiciones marginales, base de cúmulos ~1612 m, viento 11 km/h.
base ~1612m · wind 11 km/hComposite flyability score (CAPE + LI + wind + precip + low clouds). Cross-check with local pilots before flying.
Detailed hourly weather
2026-04-20⚠️ Marginal · peak 63 at 19h
- Cloud suck alto (100/100) — base bajo freezing con CU
⏰ Useful window: 13:00 – 16:00
| 08 30 | 09 50 | 10 45 ☁️⚠️ | 11 35 ☁️⚠️ 🏔️ | 12 45 ☁️⚠️ 🏔️ | 13 45 ☁️⚠️ | 14 53 ☁️⚠️ | 15 58 ☁️⚠️ | 16 53 ☁️⚠️ 🏔️ | 17 53 ☁️⚠️ 🏔️ | 18 58 ☁️⚠️ 🏔️ | 19 63 ☁️⚠️ | 20 50 ☁️⚠️ |
Peak 19h: CAPE 0 J/kg · LI -0.6 · BL top 55 m · w* 0.0 m/s · cloud base 2367 m · 0°C at 1840 m · Pro score 62/100
2026-04-21⚠️ Marginal · peak 55 at 8h
- Cloud suck alto (93/100) — base bajo freezing con CU
| 08 55 ☁️⚠️ | 09 55 ☁️⚠️ | 10 55 ☁️⚠️ | 11 55 ☁️⚠️ | 12 55 ☁️⚠️ | 13 50 ☁️⚠️ | 14 55 ☁️⚠️ | 15 55 ☁️⚠️ | 16 55 ☁️⚠️ | 17 50 ☁️⚠️ | 18 50 ☁️⚠️ | 19 55 ☁️⚠️ | 20 55 ☁️⚠️ |
Peak 8h: CAPE 40 J/kg · LI 3.8 · BL top 230 m · w* 0.0 m/s · cloud base 1367 m · 0°C at 1460 m · Pro score 44/100 · sun 24° 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: 9.0°C · Td: -2.3°C
LCL (cloud base): 1412 m
BL top: 55 m
0°C level: 1840 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) | 8 | High |
| Avg thermal probability | 0.83 | Based on thousands of aggregated IGC flights |
| Solar orientation | 0.30 | 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
Nearby sites
Kronbauer (32) · Herndleck (51) · Hinterstoder (47) · Sender Kleinerberg (68) · Grünberg (41) · Damberg (9)