Marginal conditions

Brienzer Rothorn (SO) — 2230m

Imported · Orientation SE · 135°

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Hourly windows

2026-04-05 · Local flying
6h
🌙
NIGHT
7h
🌤
MARGINAL
8h
⛅
MARGINAL
9h
🌤
MARGINAL
10h
🌤
MARGINAL
11h
☀️
MARGINAL
12h
🌤
MARGINAL
13h
🌤
MARGINAL
14h
☀️
MARGINAL
15h
🌤
MARGINAL
16h
⛅
NO-GO
tailwind
17h
🌤
NO-GO
tailwind
18h
⛅
NO-GO
tailwind
19h
⛅
MARGINAL
20h
☁️
MARGINAL
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
——
2260m
2250m
2250m
2260m
2290m
2315m
2320m
2310m
2300m
2285m
2280m
Base
clouds
——
3080m
3130m
3305m
3593m
3843m
3743m
4092m
3555m
3455m
3293m
3143m
3600m
→
43
→
44
→
43
→
45
→
47
→
45
→
45
→
44
→
42
↗
43
→
44
↗
44
↗
47
3400m
→
42
→
42
→
42
→
45
→
47
→
45
→
45
→
43
→
41
↗
41
↗
42
↗
42
↗
45
3200m
→
40
→
41
→
40
→
46
→
47
→
44
→
44
→
42
→
39
↗
40
↗
40
↗
41
↗
43
3000m
→
37
→
37
→
37
→
42
→
43
→
41
→
41
→
39
→
37
↗
37
↗
38
↗
39
↗
41
2800m
→
32
→
33
→
33
→
37
→
39
→
37
→
37
→
36
→
35
↗
35
↗
35
↗
36
↗
38
2600m
→
28
→
28
→
29
→
33
→
34
→
33
→
33
→
33
↗
33
↗
33
→
33
→
33
↗
35
2400m
→
24
→
23
→
25
→
28
→
29
→
28
→
29
→
29
↗
30
↗
30
→
30
→
30
↗
31
2200mLAUNCH
→
19
→
19
→
21
→
23
→
24
→
24
↗
25
↗
26
↗
28
↗
28
→
27
→
28
→
28
2000m
1800m
1600m
1400m
1200m
1000m
800m
600m
400m
200m
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 20:59
⚠️ This report is informational only. The final decision to fly always rests with the pilot on site.