Loriaz
📍 Rhone-Alpes , Departement de la Haute-Savoie · Nearest city: Chamonix-Mont-Blanc (13 km)
55 XC score / 100 · takeoff at 2020 m · 📍 View on map
Coordinates and external links
46.03940, 6.91576Forecast next days
Updated: 2026-04-19 16:13 UTC · Source: Open-Meteo · Thermal window 10:00–18:00 local time
Día volable, condiciones decentes, base de cúmulos ~1251 m, viento 14 km/h.
base ~1251m · wind 14 km/hDía volable, condiciones decentes, base de cúmulos ~1641 m, viento 10 km/h.
base ~1641m · wind 10 km/hDía muy favorable para XC, base de cúmulos ~1575 m, viento 10 km/h.
base ~1575m · wind 10 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 18h
- Cloud suck alto (71/100) — base bajo freezing con CU
| 08 40 ☁️⚠️ | 09 60 ☁️⚠️ | 10 50 ☁️⚠️ | 11 50 ☁️⚠️ | 12 50 ☁️⚠️ | 13 55 ☁️⚠️ | 14 50 ☁️⚠️ | 15 40 ☁️⚠️ | 16 50 ☁️⚠️ | 17 50 ☁️⚠️ | 18 63 ☁️⚠️ | 19 50 ☁️⚠️ | 20 50 ☁️⚠️ |
Peak 18h: CAPE 0 J/kg · LI -0.1 · BL top 860 m · w* 0.0 m/s · cloud base 2745 m · 0°C at 2540 m · Pro score 62/100 · sun 10° over slope
2026-04-21⚠️ Marginal · peak 55 at 13h
- Cloud suck alto (86/100) — base bajo freezing con CU
| 08 30 ☁️⚠️ | 09 30 ☁️⚠️ | 10 30 ☁️⚠️ | 11 50 ☁️⚠️ | 12 50 ☁️⚠️ | 13 55 ☁️⚠️ | 14 50 ☁️⚠️ | 15 50 ☁️⚠️ | 16 50 ☁️⚠️ | 17 50 ☁️⚠️ | 18 50 ☁️⚠️ | 19 55 ☁️⚠️ | 20 35 ☁️⚠️ |
Peak 13h: CAPE 0 J/kg · LI 2.5 · BL top 1395 m · w* 0.0 m/s · cloud base 3257 m · 0°C at 2480 m · Pro score 70/100 · sun 39° 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: 18:00 (peak of the day)
Surface T: 5.2°C · Td: -0.6°C
LCL (cloud base): 725 m
BL top: 860 m
0°C level: 2540 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) | 5 | Medium |
| Avg thermal probability | 0.84 | 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 |
Nearby sites
Flegere (65) · Grands Montets (58) · Plan Praz/ Brevent (Chamonix) (56) · Plan de l'Aiguille (Chamonix) (50) · Aiguille du Midi -S / N (61) · Tete noire de Pormenaz (48)