Jas d'oris
📍 Rhone-Alpes , Departement de l'Isere · Nearest city: La Mure (8 km)
56 XC score / 100 · takeoff at 1696 m · 📍 View on map
Coordinates and external links
44.92690, 5.88778Forecast next days
Updated: 2026-04-19 16:11 UTC · Source: Open-Meteo · Thermal window 10:00–18:00 local time
Día volable, condiciones decentes, base de cúmulos ~1290 m, viento 15 km/h.
base ~1290m · wind 15 km/hDía volable, condiciones decentes, base de cúmulos ~1027 m, viento 14 km/h.
base ~1027m · wind 14 km/hDía volable, condiciones decentes, base de cúmulos ~1191 m, viento 12 km/h.
base ~1191m · wind 12 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 55 at 13h
- Cloud suck alto (80/100) — base bajo freezing con CU
| 08 35 ☁️⚠️ | 09 30 ☁️⚠️ | 10 30 ☁️⚠️ | 11 50 | 12 50 | 13 55 ☁️⚠️ | 14 45 ☁️⚠️ | 15 50 ☁️⚠️ | 16 40 | 17 40 ☁️⚠️ | 18 50 ☁️⚠️ | 19 50 ☁️⚠️ | 20 50 ☁️⚠️ |
Peak 13h: CAPE 0 J/kg · LI 2.1 · BL top 1160 m · w* 0.0 m/s · cloud base 2996 m · 0°C at 2850 m · Pro score 70/100 · sun 40° over slope
2026-04-21❌ Not recommended · peak 55 at 13h
- Día muy estable (CAPE<50, LI>2) — sin térmicas
- Cloud suck alto (67/100) — base bajo freezing con CU
| 08 30 ☁️⚠️ | 09 30 ☁️⚠️ | 10 30 ☁️⚠️ | 11 30 | 12 50 | 13 55 | 14 50 | 15 50 ☁️⚠️ | 16 55 ☁️⚠️ | 17 55 | 18 55 | 19 50 | 20 55 |
Peak 13h: CAPE 0 J/kg · LI 3.6 · BL top 1220 m · w* 0.0 m/s · cloud base 2346 m · 0°C at 2860 m · Pro score 62/100 · sun 40° 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: 13:00 (peak of the day)
Surface T: 11.4°C · Td: 1.0°C
LCL (cloud base): 1300 m
BL top: 1160 m
0°C level: 2850 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) | 11 | High |
| Avg thermal probability | 0.74 | Based on thousands of aggregated IGC flights |
| Solar orientation | 0.33 | Slope faces south in northern hemisphere |
| Own flight history | 0.00 | Thermals detected in platform IGC tracks |
Takeoff description
grass mountain shield. From "Oris en ratier" take a track which goes in mountain, "Jas d'Oris", direction (Coirot summit). Stop in the last turn, before the shepherd house.
Pilot comments
beautiful XC with S or SW wind, to the north. High summit and deep valley before Chamrousse transition. Usualy higher thermals than in Chamrousse site or Courtet site, but stronger too ;-)
Nearby sites
Colombiers d'Entraigues (45) · breche perier (34) · chatel-mens (61) · Chamrousse - l'Aiguille / la Croix (63) · Laffrey Les Tibannes (42) · Croix de Chamrousse (56)