Flying not recommended

Grosser Sternen1831m

Imported · Orientation N, NW · 338°
25%
Local flying
Best window: 10h — 13h
Local flying is limited first by strong rain or snowfall. Outside of that constraint, some periods still look flyable, but the day is not broadly comfortable.
Local window 10h — 13hXC window No clear XC windowWatch-out: Strong rain or snowfall
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Launch wind
7 km/h
NW · 323°
Gust spread
30 km/h
rough launch feel
Lift quality
0.6 m/s
4/5 climb support
Cloud base
1048 m
37.4 km
Precipitation risk
1.0 mm/h
becomes limiting
Flying not recommended

Grosser Sternen1831m

Imported · Orientation N, NW · 338°

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Hourly windows

2026-05-04 · Local flying
6h
🌙
NIGHT
7h
☁️
MARGINAL
8h
☁️
MARGINAL
9h
NO-GO
tailwind
10h
GO
11h
GO
12h
GO
13h
GO
14h
MARGINAL
15h
NO-GO
rain
16h
NO-GO
rain
17h
NO-GO
rain
18h
☁️
GO
19h
☁️
MARGINAL
20h
☁️
MARGINAL
Best window: 10h13h
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
1941m
2001m
2186m
2396m
2601m
2761m
2851m
2851m
2791m
2686m
2561m
Base
clouds
2681m
2844m
3031m
3144m
3081m
2956m
2793m
2644m
2506m
2369m
2293m
3600m
11
11
12
13
15
16
18
21
23
24
24
24
24
3400m
10
10
10
11
13
14
17
20
22
23
23
23
22
3200m
9
9
9
9
11
12
15
19
22
23
22
22
21
3000m
9
8
7
8
9
11
14
17
20
21
21
20
19
2800m
8
7
7
7
8
9
11
14
17
18
18
17
17
2600m
7
6
6
6
7
8
9
11
14
15
15
15
14
2400m
6
6
5
6
6
7
7
8
11
12
12
12
12
2200m
5
5
4
5
5
6
5
6
8
8
9
9
10
2000m
5
4
4
4
4
4
3
3
5
5
6
6
7
1800mLAUNCH
5
5
4
3
3
4
4
6
7
7
7
7
7
1600m
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) · 2026-05-04 · Data fetched on 28 Apr at 18:30
⚠️ This report is informational only. The final decision to fly always rests with the pilot on site.