Marginal conditions

Jungfraujoch — 3449m

Imported · Orientation NW · 315°

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Hourly windows

2026-04-05 · Local flying
6h
🌙
NIGHT
7h
🌤
MARGINAL
8h
⛅
MARGINAL
9h
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MARGINAL
10h
☁️
MARGINAL
11h
🌤
MARGINAL
12h
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MARGINAL
13h
⛅
MARGINAL
14h
🌤
MARGINAL
15h
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MARGINAL
16h
⛅
MARGINAL
17h
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18h
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MARGINAL
19h
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MARGINAL
20h
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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
——
3459m
3464m
3464m
3464m
3464m
3474m
3479m
3489m
3484m
3484m
3464m
Base
clouds
——
3962m
3849m
3787m
3862m
3962m
3936m
4174m
4224m
4262m
4062m
3837m
3600m
→
27
→
27
→
29
→
28
→
30
→
32
→
31
→
31
→
32
→
30
→
32
→
32
→
32
3400mLAUNCH
→
24
→
22
→
27
→
25
→
26
→
29
→
29
→
27
→
30
→
28
→
31
→
30
→
29
3200m
3000m
2800m
2600m
2400m
2200m
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 20:58
⚠️ This report is informational only. The final decision to fly always rests with the pilot on site.