Flying not recommended

Arosa Weisshorn O — 2634m

Imported · Orientation NE, E · 68°
25%
Local flying
Best window: No clear local window
Local flying is limited first by tailwind / strong back-cross at launch. Outside of that constraint, some periods still look flyable, but the day is not broadly comfortable.
Local window No clear local windowXC window No clear XC windowWatch-out: Tailwind / strong back-cross at launch
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Launch wind
9 km/h
SW · 224°
Gust spread
30 km/h
rough launch feel
Lift quality
0.2 m/s
2/5 climb support
Cloud base
1973 m
32.4 km
Precipitation risk
Dry
no signal
Flying not recommended

Arosa Weisshorn O — 2634m

Imported · Orientation NE, E · 68°

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Hourly windows

2026-05-04 · Local flying
6h
🌙
NIGHT
7h
☁️
MARGINAL
8h
☁️
MARGINAL
9h
🌤
MARGINAL
10h
🌤
NO-GO
tailwind
11h
🌤
NO-GO
tailwind
12h
🌤
NO-GO
tailwind
13h
🌤
NO-GO
tailwind
14h
🌤
NO-GO
tailwind
15h
☁️
NO-GO
tailwind
16h
☁️
NO-GO
tailwind
17h
☁️
NO-GO
tailwind
18h
🌤
NO-GO
tailwind
19h
🌤
NO-GO
tailwind
20h
🌤
NO-GO
tailwind
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
——
2679m
2809m
3004m
3224m
3434m
3589m
3654m
3599m
3459m
3264m
3054m
Base
clouds
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3284m
3559m
4047m
4547m
4772m
4772m
4722m
4722m
4672m
4609m
4459m
3600m
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3400m
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3200m
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3000m
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2800m
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2600mLAUNCH
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2400m
2200m
2000m
1800m
1600m
1400m
1200m
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800m
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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 20:06
⚠️ This report is informational only. The final decision to fly always rests with the pilot on site.