Acceptable conditions

Horneggli — 1763m

Imported · Orientation W, NW · 293°
60%
Local flying
Best window: 12h — 20h
Local flying reaches 60% because launch wind and basic weather stay usable, but the day does not generate enough lift to feel easy or rewarding for long.
Local window 12h — 20hXC 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
4 km/h
W · 254°
Gust spread
18 km/h
rough launch feel
Lift quality
0.1 m/s
0/5 climb support
Cloud base
1000 m
38.5 km
Precipitation risk
Dry
no signal
Acceptable conditions

Horneggli — 1763m

Imported · Orientation W, NW · 293°

Save this forecast to your account for quick access later.
Send this forecast to a flying buddy.

Hourly windows

2026-08-18 · Local flying
6h
🌙
NIGHT
7h
🌤
NO-GO
tailwind
8h
⛅
NO-GO
tailwind
9h
🌤
MARGINAL
10h
🌤
MARGINAL
11h
🌤
MARGINAL
12h
⛅
GO
13h
⛅
GO
14h
⛅
GO
15h
☁️
GO
16h
☁️
GO
17h
☁️
GO
18h
☁️
GO
19h
☁️
GO
20h
☁️
GO
Best window: 12h — 20h
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
——
1773m
1828m
2388m
2568m
2763m
3043m
3108m
3158m
3133m
3013m
2718m
Base
clouds
——
1801m
2025m
2351m
2676m
2826m
2875m
2888m
2876m
2851m
2788m
2688m
3600m
↘
45
↘
48
↘
46
↘
45
↘
43
↘
42
↘
40
↘
38
↘
36
↘
34
↘
31
↘
30
↘
29
3400m
↘
40
↘
41
↘
41
↘
40
↘
39
↘
39
↘
37
↘
34
↘
32
↘
30
↘
28
↘
26
↘
26
3200m
↘
34
↘
35
↘
36
↘
36
↘
36
↘
36
↘
34
↘
30
↘
28
↘
25
↘
24
↘
23
↘
23
3000m
↘
29
↘
30
↘
31
↘
31
↘
31
↘
31
↘
29
↘
26
↘
24
↘
22
↘
21
↘
20
↘
19
2800m
↘
24
↘
25
↘
26
↘
26
↘
25
↘
25
↘
24
↘
21
↘
20
↘
18
↘
18
↘
17
↘
16
2600m
→
20
→
20
→
21
→
20
→
20
→
19
→
18
↘
17
↘
15
↘
14
↘
14
↘
14
↘
13
2400m
→
15
→
16
→
15
→
15
→
14
→
13
→
13
→
12
→
11
↘
11
↘
11
↘
11
↘
10
2200m
→
11
→
11
→
10
→
10
→
8
→
8
→
7
→
7
→
7
→
7
→
8
↘
8
↘
7
2000m
→
7
→
7
→
7
→
6
↗
4
↗
3
↗
3
→
4
→
4
→
5
→
6
→
6
↘
5
1800mLAUNCH
↗
6
↗
6
↗
6
↗
5
↗
4
↗
3
→
4
→
4
→
4
→
5
→
6
→
6
↘
6
1600m
↑
5
↗
4
↗
5
↗
4
↗
3
↗
3
→
4
→
4
→
5
→
6
→
6
→
7
↘
6
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.