Marginal conditions

Ramiswil — 733m

Jura · Orientation N, NE, NW
43%
Local flying
Best window: 18h — 19h
Local flying reaches 43% because the launch setup looks mostly workable, while lift quality and timing are what keep the score from climbing higher.
Local window 18h — 19hXC window No clear XC window
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Launch wind
7 km/h
SW · 212°
Gust spread
39 km/h
rough launch feel
Lift quality
0.7 m/s
4/5 climb support
Cloud base
1082 m
38.3 km
Precipitation risk
0.5 mm/h
becomes limiting
Marginal conditions

Ramiswil — 733m

Jura · Orientation N, NE, NW

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Hourly windows

2026-05-04 · Local flying
6h
🌙
NIGHT
7h
🌦
NO-GO
8h
🌦
NO-GO
9h
⛅
MARGINAL
10h
⛅
NO-GO
tailwind
11h
⛅
NO-GO
tailwind
12h
⛅
MARGINAL
13h
⛅
NO-GO
14h
⛅
NO-GO
15h
🌦
NO-GO
16h
🌦
NO-GO
17h
🌦
MARGINAL
18h
🌤
GO
19h
🌤
GO
20h
🌤
MARGINAL
Best window: 18h — 19h
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
——
908m
1183m
1553m
1888m
2153m
2408m
2508m
2418m
2173m
1848m
1493m
Base
clouds
——
1058m
1195m
1408m
1621m
1821m
1983m
2071m
1983m
1821m
1683m
1621m
3600m
↗
33
↗
36
↗
38
↗
38
↗
38
↗
39
↗
42
↗
45
↗
47
↗
49
↗
50
↗
50
↗
49
3400m
↗
34
↗
36
↗
38
↗
39
↗
39
↗
40
↗
43
↗
45
↗
48
↗
49
↗
50
↗
50
↗
49
3200m
↗
36
↗
37
↗
39
↗
40
↗
40
↗
41
↗
43
↗
46
↗
48
↗
50
↗
50
↗
50
↗
49
3000m
↗
36
↗
37
↗
39
↗
40
↗
40
↗
42
↗
43
↗
46
↗
48
↗
49
↗
50
↗
50
↗
49
2800m
↗
34
↗
35
↗
37
↗
38
↗
38
↗
40
↗
41
↗
43
↗
45
↗
46
↗
47
↗
47
↗
46
2600m
↗
33
↗
34
↗
35
↗
36
↗
37
↗
38
↗
39
↗
41
↗
43
↗
43
↗
44
↗
44
↗
43
2400m
↗
31
↗
32
↗
33
↗
34
↗
35
↗
37
↗
38
↗
39
↗
40
↗
41
↗
41
↗
41
↗
41
2200m
↗
29
↗
30
↗
31
↗
32
↗
33
↗
35
↗
36
↗
36
↗
37
↗
38
↗
38
↗
38
↗
38
2000m
↗
28
↗
28
↗
29
↗
30
↗
32
↗
33
↗
34
↗
34
↗
35
↗
35
↗
35
↗
35
↗
35
1800m
↗
24
↗
24
↗
24
↗
26
↗
28
↗
30
↗
29
↗
28
↗
28
↗
28
↗
30
↗
31
↗
32
1600m
↗
20
↗
19
↗
20
↗
22
↗
25
↗
27
↗
25
↗
23
↗
21
↗
22
↗
25
→
27
→
28
1400m
↗
16
↗
16
↗
16
↗
18
↗
21
↗
22
↗
21
↗
18
↗
17
↗
17
→
20
→
22
→
23
1200m
↗
13
↗
13
↑
13
↑
14
↑
15
↑
16
↗
16
↗
16
↗
15
↗
14
→
15
→
16
→
16
1000m
↑
10
↑
10
↑
10
↑
10
↑
10
↑
10
↑
12
↗
13
↗
14
↗
12
→
10
→
10
→
10
800mLAUNCH
↑
8
↑
9
↑
9
↑
9
↑
9
↑
9
↑
11
↗
12
↗
13
↗
11
→
10
→
10
→
8
600m
↑
7
↖
7
↖
7
↑
7
↑
8
↑
8
↑
9
↗
10
↗
10
↗
8
→
8
→
8
→
6
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) · 2026-05-04 · Data fetched on 28 Apr at 21:56
⚠️ This report is informational only. The final decision to fly always rests with the pilot on site.