Varan dit "Pobu"
📍 Rhone-Alpes , Departement de la Haute-Savoie · Nearest city: Passy (3 km)
55 XC score / 100 · takeoff at -1 m · 📍 View on map
Coordinates and external links
45.94500, 6.68200Forecast next days
Updated: 2026-04-22 12:20 UTC · Source: Open-Meteo · Thermal window 10:00–18:00 local time
Very favorable day for XC, cloud base ~1140 m, wind 10 km/h.
base ~1140m · wind 10 km/hFlyable day, decent conditions, cloud base ~1379 m, wind 10 km/h.
base ~1379m · wind 10 km/hFlyable day, decent conditions, cloud base ~2090 m, wind 10 km/h.
base ~2090m · wind 10 km/hComposite flyability score (CAPE + LI + wind + precip + low clouds). Cross-check with local pilots before flying.
Detailed hourly weather
2026-04-23⚠️ Marginal · peak 55 at 19h
- Cloud cover >85% — no radiation to trigger thermals
| 08 50 | 09 50 | 10 50 | 11 50 | 12 50 | 13 50 | 14 50 | 15 50 | 16 50 | 17 40 | 18 40 | 19 55 | 20 50 |
Peak 19h: CAPE 0 J/kg · LI 0.7 · BL top 690 m · w* 0.0 m/s · cloud base 1286 m · 0°C at 2770 m
2026-04-24⚠️ Marginal · peak 60 at 13h
- Very stable day (CAPE<50, LI>2) — no thermals
| 08 40 | 09 30 | 10 30 | 11 50 | 12 50 | 13 60 | 14 60 | 15 60 | 16 60 | 17 50 | 18 50 | 19 50 | 20 50 |
Peak 13h: CAPE 0 J/kg · LI 3.3 · BL top 1300 m · w* 0.0 m/s · cloud base 1386 m · 0°C at 3300 m
2026-04-25⚠️ Marginal · peak 55 at 15h
- Very stable day (CAPE<50, LI>2) — no thermals
| 08 30 | 09 30 | 10 30 | 11 30 | 12 35 | 13 35 | 14 35 | 15 55 | 16 55 | 17 50 | 18 50 | 19 55 | 20 50 |
Peak 15h: CAPE 10 J/kg · LI 3.4 · BL top 1515 m · w* 0.0 m/s · cloud base 1724 m · 0°C at 3400 m
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: 11.2°C · Td: 0.9°C
LCL (cloud base): 1287 m
BL top: 690 m
0°C level: 2770 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 — 2026-04-23
| Date | Morning 08-12h | Midday 12-16h | Evening 16-20h | |||
|---|---|---|---|---|---|---|
| 2026-04-23 | 3 km/h S | gust 17 | 10 km/h SW | gust 23 | 4 km/h W | gust 19 |
| 2026-04-24 | 2 km/h S | gust 12 | 9 km/h SW | gust 15 | 6 km/h W | gust 16 |
| 2026-04-25 | 2 km/h W | gust 14 | 8 km/h NW | gust 22 | 9 km/h NW | gust 23 |
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
🗓️ Best season to fly (2024 climatology)
Monthly climate score: historical avg of temp, wind, rain and cloud cover. Green = optimal month.
⭐ Best month: Aug (88/100, 21°C, 79mm lluvia) · Worst month: Dec (20/100, 193mm lluvia)
Why this site has thermal potential
| Factor | Value | Interpretation |
|---|---|---|
| Hotspot density (5 km) | 6 | Medium |
| Avg thermal probability | 0.85 | 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 |
Nearby sites
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