Good conditions

Belchenflue — 589m

Jura · Orientation S, SW

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Hourly windows

2026-04-05 · Local flying
6h
🌙
NIGHT
7h
⛅
GO
8h
🌤
MARGINAL
9h
☀️
GO
10h
🌤
GO
11h
☁️
MARGINAL
12h
☁️
GO
13h
🌤
GO
14h
☁️
MARGINAL
15h
☁️
MARGINAL
16h
☁️
MARGINAL
17h
☁️
MARGINAL
18h
☁️
MARGINAL
19h
☁️
MARGINAL
20h
☁️
MARGINAL
Best window: 6h — 7h
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
——
734m
774m
869m
1229m
1959m
2424m
2939m
2574m
1304m
1554m
1274m
Base
clouds
——
1739m
1777m
1864m
2027m
2252m
2502m
2352m
2751m
2864m
2427m
2227m
3600m
→
55
→
55
→
59
→
62
→
63
→
60
→
61
→
57
→
61
→
61
→
66
→
70
→
68
3400m
→
55
→
56
→
60
→
63
→
63
→
59
→
60
→
54
→
59
→
60
→
65
→
68
→
67
3200m
→
54
→
56
→
62
→
63
→
62
→
58
→
58
→
51
→
58
→
59
→
65
→
66
→
67
3000m
→
53
→
55
→
62
→
62
→
62
→
58
→
57
→
49
→
56
→
57
→
62
→
63
→
65
2800m
→
52
→
54
→
61
→
61
→
62
→
58
→
56
→
47
→
55
→
55
→
59
→
60
→
62
2600m
→
51
→
53
→
60
→
60
→
62
→
58
→
55
→
46
→
54
→
53
→
56
→
57
→
59
2400m
→
50
→
52
→
60
→
59
→
62
→
58
→
53
→
44
→
52
→
51
→
53
→
53
→
56
2200m
→
49
→
50
→
59
→
58
→
61
→
58
→
52
→
42
→
51
→
49
→
50
→
50
→
53
2000m
→
48
→
49
→
59
→
57
→
61
→
57
→
51
→
41
→
50
→
47
→
47
→
47
→
50
1800m
→
47
→
48
→
58
→
56
→
61
→
57
→
49
→
39
→
48
→
45
→
44
→
44
→
47
1600m
→
46
→
47
→
57
→
55
→
61
→
57
→
48
→
38
→
47
→
43
→
41
→
40
→
44
1400m
→
39
→
40
→
49
→
48
→
53
→
51
→
42
→
34
→
43
→
39
→
37
→
36
→
39
1200m
→
32
→
33
→
39
→
39
→
44
→
42
→
36
→
31
→
38
→
35
→
32
→
31
→
33
1000m
↗
25
↗
25
↗
30
↗
30
↗
36
↗
33
→
29
→
27
→
33
→
30
→
28
→
27
→
27
800m
↗
19
↗
19
↗
22
↗
23
↗
28
↗
26
↗
23
→
23
→
29
→
26
→
24
→
22
→
21
600mLAUNCH
↑
16
↑
15
↑
16
↗
18
↗
23
↗
19
↗
17
→
20
→
24
→
21
→
20
↘
19
→
17
400m
↑
12
↑
12
↑
13
↗
14
↗
19
↗
15
↗
14
→
18
→
21
→
19
→
19
↘
17
→
15
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) · 2026-04-05 · Data fetched on 5 Apr at 16:14
⚠️ This report is informational only. The final decision to fly always rests with the pilot on site.