Flying not recommended

Stanserhorn S1859m

Imported · Orientation S · 180°
25%
Local flying
Best window: 6h — 9h
Local flying is limited first by strong rain or snowfall. Outside of that constraint, some periods still look flyable, but the day is not broadly comfortable.
Local window 6h — 9hXC window No clear XC windowWatch-out: Strong rain or snowfall
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Launch wind
6 km/h
W · 252°
Gust spread
30 km/h
rough launch feel
Lift quality
0.5 m/s
4/5 climb support
Cloud base
1204 m
39.6 km
Precipitation risk
1.1 mm/h
becomes limiting
Flying not recommended

Stanserhorn S1859m

Imported · Orientation S · 180°

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Hourly windows

2026-05-04 · Local flying
6h
🌙
NIGHT
7h
☁️
GO
8h
☁️
GO
9h
GO
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
Best window: 6h9h
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
1874m
2079m
2364m
2634m
2929m
3149m
3234m
3149m
2929m
2639m
2324m
Base
clouds
2797m
2972m
3159m
3284m
3284m
3221m
3084m
2847m
2559m
2346m
2209m
3600m
9
10
11
13
17
19
20
21
23
24
24
24
24
3400m
8
8
9
11
14
16
18
20
22
23
23
22
21
3200m
7
7
7
9
11
14
15
19
22
22
21
20
19
3000m
6
6
6
7
9
11
13
17
20
20
19
18
17
2800m
6
5
5
6
9
10
11
14
16
17
17
16
15
2600m
5
4
4
5
8
9
9
10
13
14
14
13
13
2400m
5
4
4
5
7
8
8
7
9
10
11
11
11
2200m
4
3
3
4
6
7
6
4
6
7
8
9
9
2000m
4
3
3
3
6
6
4
1
3
4
5
6
8
1800mLAUNCH
3
3
3
3
4
5
4
4
5
6
6
6
7
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 21:58
⚠️ This report is informational only. The final decision to fly always rests with the pilot on site.