Obere Wengi
📍 Solothurn , Bezirk Thal · Nearest city: Matzendorf (2 km)
64 XC score / 100 · takeoff at 947 m · 📍 View on map
Coordinates and external links
47.32600, 7.62779Forecast next days
Updated: 2026-04-21 01:16 UTC · Source: Open-Meteo · Thermal window 10:00–18:00 local time
Flyable day, decent conditions, cloud base ~1193 m, wind 18 km/h.
base ~1193m · wind 18 km/hFlyable day, decent conditions, cloud base ~1145 m, wind 22 km/h.
base ~1145m · wind 22 km/hMarginal conditions, cloud base ~2048 m, wind 19 km/h.
base ~2048m · 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 60 at 15h
- Very stable day (CAPE<50, LI>2) — no thermals
- High cloud suck (97/100) — base below freezing with CU
| 08 30 | 09 35 ☁️⚠️ | 10 35 ☁️⚠️ | 11 35 ☁️⚠️ | 12 35 ☁️⚠️ | 13 35 ☁️⚠️ | 14 25 ☁️⚠️ | 15 60 ☁️⚠️ | 16 60 ☁️⚠️ | 17 60 ☁️⚠️ | 18 55 ☁️⚠️ | 19 55 | 20 30 ☁️⚠️ |
Peak 15h: CAPE 10 J/kg · LI 3.8 · BL top 1590 m · w* 0.0 m/s · cloud base 2272 m · 0°C at 1780 m · Pro score 73/100 · sun 30° 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: 15:00 (peak of the day)
Surface T: 10.5°C · Td: -0.1°C
LCL (cloud base): 1325 m
BL top: 1590 m
0°C level: 1780 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 — 2026-04-21
| Date | Morning 08-12h | Midday 12-16h | Evening 16-20h | |||
|---|---|---|---|---|---|---|
| 2026-04-21 | 9 km/h NE | gust 40 | 12 km/h NE | gust 33 | 11 km/h N | gust 35 |
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
Why this site has thermal potential
| Factor | Value | Interpretation |
|---|---|---|
| Hotspot density (5 km) | 12 | High |
| Avg thermal probability | 0.77 | Based on thousands of aggregated IGC flights |
| Solar orientation | 0.61 | Slope faces south in northern hemisphere |
| Own flight history | 0.00 | Thermals detected in platform IGC tracks |
Takeoff description
Large moderatley sloped field. Easy take-off. Heavely frequented on good days. Thermal 100 meters to the left of the take off. Launch site belongs to the farmer running a small restaurant next to the site, it is expected to consume something before taking-off (instead a launching fee).
Rules and notes
TMA Basel above. Ceiling 1700 meters asl. Do not go above without radio clearance and good understanding of the airspace regulations for this area. Ask locals for information.
Pilot comments
Fantastic XC site in spring.
Nearby sites
Laupersdoerfer Stierenberg (51) · Sonnenberg (59) · Hohe Winde (47) · Schwaengimatt (40) · Brandberg (62) · Hohwacht (45)