Cerro Otto
📍 Rio Negro , Departamento de Bariloche · Nearest city: San Carlos de Bariloche (6 km)
59 XC score / 100 · takeoff at 1393 m · 📍 View on map
Coordinates and external links
-41.14420, -71.37630Forecast next days
Updated: 2026-04-21 01:20 UTC · Source: Open-Meteo · Thermal window 10:00–18:00 local time
Marginal conditions, cloud base ~1129 m, wind 12 km/h.
base ~1129m · wind 12 km/hMarginal conditions, cloud base ~977 m, wind 18 km/h.
base ~977m · wind 18 km/hNot recommended for flying, cloud base ~793 m, wind 19 km/h.
base ~793m · wind 19 km/hComposite flyability score (CAPE + LI + wind + precip + low clouds). Cross-check with local pilots before flying.
Detailed hourly weather
2026-04-21❌ Not recommended · peak 40 at 17h
- Very stable day (CAPE<50, LI>2) — no thermals
- High cloud suck (90/100) — base below freezing with CU
| 08 30 | 09 30 | 10 30 | 11 30 ☁️⚠️ | 12 30 ☁️⚠️ | 13 30 ☁️⚠️ | 14 35 ☁️⚠️ | 15 35 ☁️⚠️ | 16 35 ☁️⚠️ | 17 40 ☁️⚠️ | 18 35 ☁️⚠️ | 19 30 ☁️⚠️ | 20 30 ☁️⚠️ |
Peak 17h: CAPE 10 J/kg · LI 8.0 · BL top 880 m · w* 0.0 m/s · cloud base 2618 m · 0°C at 2120 m · Pro score 49/100 · sun 9° 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: 17:00 (peak of the day)
Surface T: 8.5°C · Td: -1.3°C
LCL (cloud base): 1225 m
BL top: 880 m
0°C level: 2120 m
Approximate profile from surface variables + synoptic levels. Red lines = temperature, dashed blue = dew point. Orange bands = detected inversions.
🌬 Daily wind (next days)
Daily summary (10m wind). Full hour × altitude chart is being added progressively.
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 | 0.92 | Based on thousands of aggregated IGC flights |
| Solar orientation | 0.49 | Slope faces north in southern hemisphere |
| Own flight history | 0.00 | Thermals detected in platform IGC tracks |
Real takeoff terrain
| SRTM elevation | 1405 m AMSL |
| Average slope | 10.2° |
| Slope aspect | 235° (SW) |
| Hemisphere | south — Orientation unfavorable for direct solar thermals |
Derived from SRTM 30m (NASA).
Nearby sites
Piedra del Condor (48) · Meiling (3) · Paso del Cordoba (30) · El Bolson (44) · Cerro Chapelco Chico (39) · Villa Pehuenia (4)