Acceptable conditions

Chellechöpfli S — 1116m

Jura · Orientation S
55%
Local flying
Best window: 6h — 15h
Local flying reaches 55% because the launch setup looks mostly workable, while lift quality and timing are what keep the score from climbing higher.
Local window 6h — 15hXC window No clear XC window
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Launch wind
9 km/h
S · 198°
Gust spread
39 km/h
rough launch feel
Lift quality
0.4 m/s
2/5 climb support
Cloud base
979 m
34.2 km
Precipitation risk
0.5 mm/h
becomes limiting
Acceptable conditions

Chellechöpfli S — 1116m

Jura · Orientation S

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Hourly windows

2026-04-11 · Local flying
6h
🌙
NIGHT
7h
☁️
GO
8h
☁️
GO
9h
⛅
GO
10h
☀️
GO
11h
🌤
GO
12h
🌤
GO
13h
☀️
GO
14h
🌤
GO
15h
☁️
GO
16h
🌧
NO-GO
17h
🌧
NO-GO
rain
18h
🌧
MARGINAL
19h
🌧
GO
20h
🌧
NO-GO
tailwind
Best window: 6h — 15h
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
——
1246m
1326m
1416m
1576m
1811m
2106m
2291m
2476m
2966m
1906m
1146m
Base
clouds
——
1466m
1666m
1803m
2004m
2091m
2204m
2216m
2353m
1991m
1604m
2004m
3600m
→
46
→
44
→
45
→
41
→
36
→
35
→
35
→
33
→
30
↗
27
↗
29
↗
54
→
57
3400m
→
44
→
41
→
42
→
39
→
34
→
32
→
33
→
32
→
30
↗
27
↗
28
↗
51
↗
59
3200m
→
42
→
39
→
40
→
37
→
32
→
30
→
31
→
31
→
31
↗
27
↗
27
↗
48
↗
61
3000m
→
40
→
37
→
38
→
35
→
31
→
28
→
29
→
30
→
31
→
26
↗
26
↗
45
↗
61
2800m
→
39
→
36
→
37
→
33
→
30
→
28
→
29
→
30
→
29
→
24
↗
23
↗
43
↗
57
2600m
→
38
→
35
→
35
→
32
→
29
→
27
→
29
→
29
→
27
→
21
↗
20
↗
41
↗
53
2400m
→
36
→
34
→
33
→
30
→
28
→
27
→
28
→
28
→
26
→
19
↗
17
↗
38
↗
50
2200m
→
35
→
33
→
32
→
29
→
26
→
27
→
28
→
28
→
24
→
16
↗
15
→
36
↗
46
2000m
→
34
→
32
→
30
→
28
→
25
→
26
→
28
→
27
→
22
→
14
→
12
→
33
↗
42
1800m
→
33
→
31
→
29
→
26
→
25
↗
27
↗
28
→
27
→
20
→
12
→
11
→
33
↗
38
1600m
→
32
→
30
→
27
→
25
↗
25
↗
27
↗
28
→
27
→
19
→
9
→
11
→
32
↗
35
1400m
→
30
→
28
→
25
→
23
↗
23
↗
26
↗
27
↗
25
→
16
→
7
↘
10
→
30
↗
30
1200mLAUNCH
→
24
→
23
→
21
↗
19
↗
19
↗
21
↗
23
↗
21
↗
14
→
6
→
9
→
24
↗
25
1000mLAUNCH
↗
19
↗
18
↗
16
↗
15
↗
16
↗
17
↗
18
↗
17
↗
11
↗
5
→
8
→
18
↗
19
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) · 2026-04-11 · Data fetched on 11 Apr at 09:17
⚠️ This report is informational only. The final decision to fly always rests with the pilot on site.