Urmiberg (Brunnen)
📍 Schwyz , Bezirk Schwyz · Nearest city: Ingenbohl (2 km)
56 XC score / 100 · takeoff at 1078 m · 📍 View on map
Coordinates and external links
47.01200, 8.59105Forecast next days
Updated: 2026-04-21 01:23 UTC · Source: Open-Meteo · Thermal window 10:00–18:00 local time
Flyable day, decent conditions, cloud base ~987 m, wind 15 km/h.
base ~987m · wind 15 km/hFlyable day, decent conditions, cloud base ~1026 m, wind 19 km/h.
base ~1026m · wind 19 km/hMarginal conditions, cloud base ~1827 m, wind 9 km/h.
base ~1827m · wind 9 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 55 at 13h
- Cloud cover >85% — no radiation to trigger thermals
- High cloud suck (100/100) — base below freezing with CU
| 08 20 ☁️⚠️ | 09 20 ☁️⚠️ | 10 40 ☁️⚠️ | 11 40 ☁️⚠️ | 12 50 ☁️⚠️ | 13 55 ☁️⚠️ | 14 55 ☁️⚠️ | 15 45 ☁️⚠️ | 16 45 ☁️⚠️ | 17 45 ☁️⚠️ | 18 55 ☁️⚠️ | 19 50 ☁️⚠️ | 20 50 ☁️⚠️ |
Peak 13h: CAPE 10 J/kg · LI 1.5 · BL top 1125 m · w* 0.0 m/s · cloud base 2178 m · 0°C at 1890 m · Pro score 58/100 · sun 38° 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: 8.8°C · Td: 0.0°C
LCL (cloud base): 1100 m
BL top: 1125 m
0°C level: 1890 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) | 3 | Medium |
| Avg thermal probability | 0.84 | Based on thousands of aggregated IGC flights |
| Solar orientation | 0.65 | Slope faces south in northern hemisphere |
| Own flight history | 0.00 | Thermals detected in platform IGC tracks |
Upcoming competitions in this country
- PWCA Italy Gemona 2026 · 2026-07-25 – 2026-08-01 · PWCA
Copa del Mundo en Gemona del Friuli, Italia
Takeoff description
steep grassy meadow; right beside/ below cable car station
Rules and notes
Airspaces in Switzerland are a tough subject, get all the info you can get before flying: http://www.flyland.ch. DABS (active danger areas etc): www.skybriefing.com/portal/
Nearby sites
Paraeasy Gleitschirm Tandemflüge (5) · Landeplatz Rickenbach SZ (5) · Win Wings Gleitschirm Flugschule (5) · Wildspitz (49) · Landeplatz Goldau (5) · Rigi-Scheidegg (50)