Acceptable conditions

Stanserhorn S — 1859m

Imported · Orientation S · 180°
57%
Local flying
Best window: 6h — 8h
Local flying reaches 57% 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
Forecast-based estimate — not a flight clearance. Always check live conditions and assess on site.
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Send this forecast to a flying buddy.
Launch wind
6 km/h
W · 284°
Gust spread
22 km/h
rough launch feel
Lift quality
0.2 m/s
2/5 climb support
Cloud base
807 m
38.7 km
Precipitation risk
Dry
no signal
Acceptable conditions

Stanserhorn S — 1859m

Imported · Orientation S · 180°

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Send this forecast to a flying buddy.

Hourly windows

2026-08-18 · Local flying
6h
🌙
NIGHT
7h
☁️
GO
8h
☁️
GO
9h
⛅
MARGINAL
10h
⛅
GO
11h
⛅
GO
12h
☁️
MARGINAL
13h
☁️
MARGINAL
14h
☁️
MARGINAL
15h
⛅
MARGINAL
16h
⛅
NO-GO
tailwind
17h
⛅
NO-GO
tailwind
18h
☁️
NO-GO
tailwind
19h
☁️
MARGINAL
20h
☁️
GO
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
——
1889m
1964m
2664m
2884m
2964m
2969m
2984m
2939m
2854m
2709m
2444m
Base
clouds
——
2109m
2222m
2396m
2546m
2634m
2697m
2734m
2797m
2859m
2822m
2672m
3600m
↘
45
↘
47
↘
49
↘
48
↘
45
↘
43
↘
41
↘
39
↘
38
↘
36
↘
35
↘
34
↘
35
3400m
↘
40
↘
42
↘
43
↘
41
↘
39
↘
37
↘
36
↘
35
↘
34
↘
33
↘
31
↘
30
↘
31
3200m
↘
35
↘
36
↘
37
↘
35
↘
33
↘
31
↘
30
↘
30
↘
30
↘
29
↘
27
↘
26
↘
27
3000m
→
31
→
32
→
32
→
31
→
29
→
27
→
27
↘
27
↘
27
↘
26
↘
24
↘
23
↘
24
2800m
→
27
→
28
→
28
→
27
→
26
→
24
→
24
→
24
→
24
→
23
→
21
→
20
→
21
2600m
→
24
→
25
→
25
→
24
→
22
→
21
→
21
→
21
→
21
→
20
→
18
→
17
→
18
2400m
→
20
→
21
→
21
→
20
→
19
→
18
→
18
→
18
→
18
→
17
→
15
→
15
→
16
2200m
→
17
→
17
→
17
→
17
→
16
→
16
↗
15
↗
15
↗
15
↗
14
→
12
→
12
→
13
2000m
→
14
→
14
→
14
→
13
→
13
↗
13
↗
13
↗
13
↗
12
↗
11
↗
10
→
10
→
10
1800mLAUNCH
→
11
→
11
→
11
→
11
→
11
→
11
→
11
↗
10
↗
10
→
9
→
9
→
9
→
9
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
Updated 77h ago

Sources: Open-Meteo (AROME 1.3km, ICON-D2 2km) · 2026-08-18
⚠️ This report is informational only. The final decision to fly always rests with the pilot on site.