Marginal conditions

Hornberg (unten) — 1288m

Imported · Orientation SW, W · 247°
48%
Local flying
Best window: 16h — 18h
Local flying reaches 48% 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 16h — 18hXC 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
NW · 310°
Gust spread
19 km/h
rough launch feel
Lift quality
0.1 m/s
0/5 climb support
Cloud base
1130 m
39.8 km
Precipitation risk
Dry
no signal
Marginal conditions

Hornberg (unten) — 1288m

Imported · Orientation SW, W · 247°

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Send this forecast to a flying buddy.

Hourly windows

2026-08-18 · Local flying
6h
🌙
NIGHT
7h
🌤
MARGINAL
8h
⛅
MARGINAL
9h
🌤
MARGINAL
10h
🌤
MARGINAL
11h
🌤
MARGINAL
12h
⛅
MARGINAL
13h
⛅
MARGINAL
14h
⛅
MARGINAL
15h
☁️
MARGINAL
16h
☁️
GO
17h
☁️
GO
18h
☁️
GO
19h
☁️
MARGINAL
20h
☁️
MARGINAL
Best window: 16h — 18h
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
——
1298m
1353m
1798m
2088m
2188m
2348m
2223m
2228m
2203m
2113m
1888m
Base
clouds
——
1675m
1851m
2076m
2301m
2438m
2513m
2551m
2563m
2488m
2426m
2325m
3600m
↘
45
↘
46
↘
45
↘
43
↘
42
↘
40
↘
38
↘
36
↘
33
↘
32
↘
31
↘
30
↘
29
3400m
↘
39
↘
40
↘
40
↘
39
↘
38
↘
37
↘
35
↘
32
↘
29
↘
28
↘
28
↘
27
↘
26
3200m
↘
33
↘
34
↘
35
↘
35
↘
35
↘
34
↘
32
↘
28
↘
26
↘
24
↘
24
↘
24
↘
24
3000m
↘
28
↘
28
↘
29
↘
29
↘
30
↘
29
↘
27
↘
24
↘
22
↘
21
↘
21
↘
21
↘
20
2800m
↘
23
↘
23
↘
24
↘
24
↘
24
↘
24
↘
22
↘
20
↘
18
↘
18
↘
18
↘
18
↘
17
2600m
→
18
→
18
→
19
↘
18
↘
18
↘
18
↘
17
↘
16
↘
15
↘
14
↘
15
↘
15
↘
14
2400m
→
13
→
13
→
14
→
13
↘
12
↘
12
↘
12
↘
11
↘
11
↘
11
↘
12
↘
12
↘
11
2200m
→
8
→
8
→
8
→
8
→
7
↘
6
↘
6
→
7
↘
7
↘
8
↘
9
↘
9
↘
8
2000m
→
4
→
4
→
4
→
3
→
2
↘
2
↘
3
→
4
→
5
↘
6
↘
6
↘
7
↘
5
1800m
↗
3
↗
3
↗
3
→
2
→
2
↘
3
↘
3
↘
4
↘
5
↘
6
↘
6
↘
7
↘
6
1600m
↑
3
↖
1
↑
2
↗
1
↘
2
↘
3
↘
4
↘
5
↘
6
↘
6
↘
7
↘
7
↘
6
1400mLAUNCH
↑
3
↖
1
↑
2
↗
1
↘
1
↘
3
↘
4
↘
5
↘
6
↘
7
↘
7
↘
6
↘
6
1200mLAUNCH
↑
3
↖
2
↑
2
↑
1
↘
1
↘
3
↘
4
↘
5
↘
6
↘
6
↘
7
↘
6
↘
5
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 78h 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.