Marginal conditions

Weissfluhjoch (Sommer) — 2662m

Imported · Orientation SE · 135°
45%
Local flying
Best window: 9h — 10h
Local flying reaches 45% because the launch setup looks mostly workable, while lift quality and timing are what keep the score from climbing higher.
Local window 9h — 10hXC window No clear XC window
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Launch wind
11 km/h
SW · 210°
Gust spread
36 km/h
rough launch feel
Lift quality
0.2 m/s
2/5 climb support
Cloud base
1545 m
29.9 km
Precipitation risk
Dry
no signal
Marginal conditions

Weissfluhjoch (Sommer) — 2662m

Imported · Orientation SE · 135°

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Hourly windows

2026-05-04 · Local flying
6h
🌙
NIGHT
7h
☁️
NO-GO
low vis
8h
☁️
MARGINAL
9h
⛅
GO
10h
⛅
GO
11h
⛅
MARGINAL
12h
☁️
MARGINAL
13h
☁️
MARGINAL
14h
☁️
MARGINAL
15h
☁️
MARGINAL
16h
☁️
MARGINAL
17h
☁️
MARGINAL
18h
🌤
MARGINAL
19h
🌤
MARGINAL
20h
🌤
MARGINAL
Best window: 9h — 10h
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
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2697m
2867m
3102m
3332m
3642m
3837m
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3637m
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3092m
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clouds
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3000m
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2800m
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2600mLAUNCH
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2400m
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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 21:59
⚠️ This report is informational only. The final decision to fly always rests with the pilot on site.