Acceptable conditions

Braendlen S1209m

Imported · Orientation S, SW · 202°
57%
Local flying
Best window: 6h — 11h
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 — 11hXC window No clear XC window
Forecast-based estimate — not a flight clearance. Always check live conditions and assess on site.
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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
830 m
38.7 km
Precipitation risk
Dry
no signal
Acceptable conditions

Braendlen S1209m

Imported · Orientation S, SW · 202°

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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
GO
10h
GO
11h
GO
12h
☁️
MARGINAL
13h
☁️
MARGINAL
14h
☁️
MARGINAL
15h
MARGINAL
16h
MARGINAL
17h
MARGINAL
18h
☁️
MARGINAL
19h
☁️
MARGINAL
20h
☁️
MARGINAL
Best window: 6h11h
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
1239m
1269m
1599m
2359m
2494m
2434m
2414m
2279m
2074m
1859m
1629m
Base
clouds
1484m
1597m
1759m
1921m
2009m
2072m
2109m
2172m
2234m
2209m
2047m
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
1800m
11
11
11
11
11
11
11
10
10
9
9
9
9
1600m
8
9
9
9
9
9
8
8
8
7
8
8
7
1400m
7
7
7
7
7
8
8
7
7
7
7
8
6
1200mLAUNCH
6
6
5
5
6
7
7
7
7
7
7
7
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 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.