Ohira Sky Club
📍 Tochigi · Nearest city: Tochigi (6 km)
55 XC score / 100 · takeoff at 383 m · 📍 View on map
Coordinates and external links
36.36070, 139.67700Forecast next days
Updated: 2026-04-21 01:25 UTC · Source: Open-Meteo · Thermal window 10:00–18:00 local time
Marginal conditions, cloud base ~2145 m, wind 18 km/h.
base ~2145m · wind 18 km/hFlyable day, decent conditions, cloud base ~1393 m, wind 13 km/h.
base ~1393m · wind 13 km/hNot recommended for flying, cloud base ~706 m, wind 10 km/h, precipitation 2.4 mm.
base ~706m · wind 10 km/h · precip 2.4mmComposite flyability score (CAPE + LI + wind + precip + low clouds). Cross-check with local pilots before flying.
Detailed hourly weather
2026-04-21⚠️ Marginal · peak 45 at 12h
⏰ Useful window: 12:00 – 13:00
| 08 30 | 09 14 | 10 35 | 11 35 | 12 45 | 13 45 ☁️⚠️ | 14 25 ☁️⚠️ | 15 35 ☁️⚠️ | 16 30 ☁️⚠️ | 17 30 ☁️⚠️ | 18 30 | 19 30 | 20 30 |
Peak 12h: CAPE 170 J/kg · LI 6.5 · BL top 845 m · w* 8.0 m/s · cloud base 1145 m · 0°C at 2970 m · Pro score 58/100 · sun 50° 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: 12:00 (peak of the day)
Surface T: 16.8°C · Td: 10.7°C
LCL (cloud base): 762 m
BL top: 845 m
0°C level: 2970 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) | 8 | High |
| Avg thermal probability | 0.75 | 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 |
Takeoff description
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