Marginal conditions

Niederhorn — 1937m

Imported · Orientation SE, S · 158°
38%
Local flying
Best window: 6h — 8h
Local flying reaches 38% because the launch setup looks mostly workable, while lift quality and timing are what keep the score from climbing higher.
Local window 6h — 8hXC window No clear XC window
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Launch wind
4 km/h
NE · 56°
Gust spread
23 km/h
rough launch feel
Lift quality
0.2 m/s
2/5 climb support
Cloud base
898 m
42.7 km
Precipitation risk
0.8 mm/h
becomes limiting
Marginal conditions

Niederhorn — 1937m

Imported · Orientation SE, S · 158°

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Hourly windows

2026-05-04 · Local flying
6h
🌙
NIGHT
7h
☁️
GO
8h
☁️
GO
9h
☁️
MARGINAL
10h
☁️
MARGINAL
11h
☁️
MARGINAL
12h
☁️
MARGINAL
13h
☁️
MARGINAL
14h
☁️
MARGINAL
15h
⛈
NO-GO
tailwind
16h
⛈
NO-GO
tailwind
17h
⛈
NO-GO
tailwind
18h
🌦
NO-GO
tailwind
19h
🌦
NO-GO
tailwind
20h
🌦
NO-GO
tailwind
Best window: 6h — 8h
AI analysis
No analysis available for this day.

📊 Wind & thermals aloft

🎓 Full view
💡
Overview: colored arrows show wind speed and direction. Yellow to orange cells highlight the active thermal layer. The LAUNCH line marks the takeoff altitude.
Alt.6h7h8h9h10h11h12h13h14h15h16h17h18h
Top
BLH
——
1982m
2042m
2132m
2237m
2332m
2402m
2427m
2397m
2322m
2227m
2122m
Base
clouds
——
2400m
2462m
2562m
2712m
2875m
3037m
3112m
2924m
2625m
2412m
2225m
3600m
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16
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3400m
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3200m
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3000m
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2800m
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2600m
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2400m
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7
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2200m
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↙
6
2000mLAUNCH
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6
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6
←
5
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5
↙
6
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5
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4
1800m
↖
5
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5
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4
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5
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5
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5
↙
5
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6
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6
↙
4
1600m
1400m
1200m
1000m
800m
600m
400m
200m
0m
0–56–1011–1516–2021–25>25km/hBLH topCloud baseThermals

💨 Wind at launch

🎓 Safety thresholds
💡
Mean wind is the constant speed. Gusts are sudden accelerations. Thresholds: 15 km/h = caution, 25 km/h = critical.

🌡 Temperature

🎓 Why it matters?
💡
Launch temperature affects your comfort and safety. Below 0°C, your fingers go numb and handling controls becomes difficult.

💧 Precipitation

🎓 Impact on the wing
⚠️
Golden rule: never fly in rain or snow. Water weighs down the wing (up to +5 kg), alters its aerodynamic profile and reduces lift. Snow can freeze on suspension lines.
Snow Rain/Showers

Sources: Open-Meteo (AROME 1.3km, ICON-D2 2km) · 2026-05-04 · Data fetched on 28 Apr at 12:39
⚠️ This report is informational only. The final decision to fly always rests with the pilot on site.