Marginal conditions

Kronberg (S) — 1638m

Imported · Orientation S, SW · 202°

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Hourly windows

2026-04-07 · Local flying
6h
🌙
NIGHT
7h
⛅
MARGINAL
8h
⛅
MARGINAL
9h
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MARGINAL
10h
☀️
MARGINAL
11h
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MARGINAL
12h
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MARGINAL
13h
🌤
MARGINAL
14h
🌤
MARGINAL
15h
⛅
MARGINAL
16h
⛅
MARGINAL
17h
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MARGINAL
18h
🌤
MARGINAL
19h
🌤
MARGINAL
20h
🌙
NIGHT
Best window: 20h — 20h
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
——
1683m
1718m
1808m
1968m
2163m
2443m
2788m
2988m
2998m
2893m
2033m
Base
clouds
——
2538m
2738m
2876m
2925m
2901m
2938m
2951m
2776m
2550m
2588m
2463m
3600m
→
31
→
34
→
32
↘
33
↘
34
↘
32
↘
30
↘
28
↘
26
↘
26
↘
27
↘
26
↘
27
3400m
→
30
→
33
→
31
→
33
→
33
↘
32
↘
30
↘
26
↘
25
↘
25
↘
25
↘
24
↘
26
3200m
→
30
→
33
→
30
→
32
→
33
→
31
↘
29
↘
25
↘
23
↘
23
↘
23
↘
22
↘
24
3000m
→
29
→
32
→
30
→
31
→
31
→
30
↘
28
↘
24
↘
22
↘
22
↘
22
↘
21
↘
23
2800m
→
27
→
30
→
29
→
30
→
30
→
28
→
26
↘
23
↘
21
↘
21
↘
21
↘
20
↘
21
2600m
→
26
→
28
→
28
→
29
→
28
→
26
→
25
→
22
→
21
↘
20
→
19
↘
19
↘
19
2400m
→
25
→
27
→
27
→
27
→
26
→
24
→
23
→
21
→
20
→
20
→
18
→
17
↘
17
2200m
→
23
→
25
→
26
→
26
→
24
→
23
→
22
→
20
→
19
→
19
→
17
→
16
↘
16
2000m
→
22
→
24
→
25
→
25
→
23
→
21
→
21
→
19
→
19
→
18
→
16
→
15
→
14
1800m
→
21
→
23
→
25
→
24
↗
22
→
20
→
20
→
19
→
19
→
18
→
15
→
14
→
12
1600mLAUNCH
↗
21
↗
22
↗
25
↗
24
↗
21
↗
19
→
20
→
19
→
19
→
17
→
14
→
13
→
11
1400m
1200m
1000m
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) · 2026-04-07 · Data fetched on 7 Apr at 17:20
⚠️ This report is informational only. The final decision to fly always rests with the pilot on site.