Acceptable conditions

Zugerberg — 939m

Imported · Orientation W · 270°
63%
Local flying
Best window: 16h — 20h
Local flying reaches 63% because the launch setup looks mostly workable, while lift quality and timing are what keep the score from climbing higher.
Local window 16h — 20hXC window No clear XC window
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Launch wind
6 km/h
NW · 315°
Gust spread
22 km/h
rough launch feel
Lift quality
0.7 m/s
4/5 climb support
Cloud base
1218 m
34.6 km
Precipitation risk
0.2 mm/h
light showers possible
Acceptable conditions

Zugerberg — 939m

Imported · Orientation W · 270°

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Hourly windows

2026-05-04 · Local flying
6h
🌙
NIGHT
7h
☁️
MARGINAL
8h
☁️
MARGINAL
9h
⛅
MARGINAL
10h
⛅
MARGINAL
11h
⛅
GO
12h
⛅
GO
13h
⛅
GO
14h
⛅
GO
15h
☁️
MARGINAL
16h
☁️
GO
17h
☁️
GO
18h
☁️
GO
19h
☁️
GO
20h
☁️
GO
Best window: 16h — 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
——
1049m
1359m
1774m
2099m
2039m
2234m
2309m
2224m
2014m
1734m
1434m
Base
clouds
——
1352m
1539m
1827m
2052m
2164m
2214m
2264m
2289m
2289m
2239m
2214m
3600m
↗
12
↗
13
↗
15
↗
16
↗
19
↗
21
↗
22
↗
25
↗
27
↗
28
↗
29
↗
30
↗
29
3400m
↗
11
↗
12
↗
13
↗
15
↗
17
↗
19
↗
20
↗
22
↗
25
↗
26
↗
27
↗
27
↗
27
3200m
↗
10
↗
11
↗
12
↗
13
↗
15
↗
17
↗
18
↗
20
↗
22
↗
23
↗
24
↗
25
↗
25
3000m
↗
10
↗
10
↗
11
↗
12
↗
14
↗
15
↗
17
↗
19
↗
20
↗
21
↗
22
↗
23
↗
23
2800m
↗
9
↗
9
↗
9
↗
10
↗
12
↗
14
↗
15
↗
17
↗
18
↗
19
↗
21
↗
21
↗
22
2600m
↗
9
↗
8
↗
8
↗
8
↗
11
↗
13
↑
14
↑
16
↗
17
↗
17
↗
19
↗
20
↗
21
2400m
↗
8
↗
7
↗
6
↗
7
↑
9
↑
12
↑
13
↑
14
↑
15
↗
15
↗
17
↗
19
↗
20
2200m
↗
8
→
6
→
5
↗
5
↑
8
↑
10
↑
11
↑
12
↑
13
↗
14
↗
16
↗
18
→
19
2000m
↗
7
→
5
→
3
↑
3
↑
7
↑
9
↑
10
↑
11
↑
11
↗
12
↗
14
→
17
→
19
1800m
↗
6
↗
4
↗
3
↑
3
↖
6
↖
7
←
7
↗
9
↗
11
→
11
→
12
→
14
→
15
1600m
↑
4
↑
3
↑
2
↖
3
↖
5
↖
4
↙
3
↘
8
↘
11
↘
11
→
10
→
10
→
11
1400m
↑
4
↑
3
↖
3
↖
3
↖
4
←
3
↓
2
↘
7
↘
11
↘
11
→
9
→
9
→
9
1200m
↖
4
↖
4
↖
4
↖
4
↖
3
←
2
↘
3
↘
8
↘
11
↘
11
→
9
→
9
→
9
1000mLAUNCH
↖
5
↖
5
↖
5
↖
4
←
2
↙
1
↘
4
↘
8
↘
10
↘
10
→
9
→
8
→
8
800m
↖
4
↖
4
↑
4
↑
2
↘
1
↘
3
↘
5
↘
9
↘
10
↘
10
→
9
→
8
↗
8
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 21:59
⚠️ This report is informational only. The final decision to fly always rests with the pilot on site.