Flying not recommended

Niesen W — 2179m

Imported · Orientation SW, W · 247°
25%
Local flying
Best window: No clear local window
Local flying is limited first by tailwind / strong back-cross at launch. Outside of that constraint, some periods still look flyable, but the day is not broadly comfortable.
Local window No clear local windowXC window No clear XC windowWatch-out: Tailwind / strong back-cross at launch
Save this forecast to your account for quick access later.
Launch wind
4 km/h
E · 86°
Gust spread
21 km/h
rough launch feel
Lift quality
0.1 m/s
0/5 climb support
Cloud base
1121 m
43.1 km
Precipitation risk
0.3 mm/h
light showers possible
Flying not recommended

Niesen W — 2179m

Imported · Orientation SW, W · 247°

Save this forecast to your account for quick access later.

Hourly windows

2026-05-04 · Local flying
6h
🌙
NIGHT
7h
☁️
MARGINAL
8h
☁️
MARGINAL
9h
☁️
MARGINAL
10h
☁️
MARGINAL
11h
☁️
NO-GO
tailwind
12h
☁️
NO-GO
tailwind
13h
☁️
NO-GO
tailwind
14h
☁️
NO-GO
tailwind
15h
🌦
NO-GO
tailwind
16h
🌦
NO-GO
tailwind
17h
🌦
NO-GO
tailwind
18h
🌦
NO-GO
tailwind
19h
🌦
NO-GO
rain
20h
🌦
NO-GO
rain
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
——
2319m
2379m
2459m
2554m
2634m
2694m
2709m
2669m
2589m
2484m
2369m
Base
clouds
——
2604m
2717m
2904m
3092m
3292m
3467m
3542m
3479m
3329m
3117m
2829m
3600m
↑
18
↑
18
↑
18
↑
18
↑
18
↑
18
↑
18
↑
17
↑
16
↑
16
↑
15
↑
14
↑
14
3400m
↑
15
↑
15
↑
16
↑
16
↑
16
↑
16
↑
16
↑
15
↑
14
↑
14
↑
14
↑
14
↑
13
3200m
↑
13
↑
13
↑
13
↑
14
↑
14
↑
14
↑
14
↑
13
↑
12
↑
12
↑
13
↑
13
↑
13
3000m
↑
11
↑
11
↖
12
↖
12
↖
13
↑
12
↑
12
↑
11
↑
10
↑
11
↖
12
↖
13
↖
12
2800m
↑
10
↖
10
↖
10
↖
11
↖
11
↖
11
↖
10
↖
10
↖
9
↖
10
↖
11
↖
11
↖
11
2600m
↖
9
↖
9
↖
9
↖
10
↖
10
↖
10
↖
9
↖
8
↖
8
↖
8
↖
9
↖
10
←
9
2400m
↖
8
↖
8
↖
8
↖
8
↖
8
↖
8
↖
8
↖
7
↖
7
←
7
←
8
←
9
←
8
2200mLAUNCH
↖
6
↖
7
↖
7
↖
7
↖
7
↖
7
↖
6
↖
6
←
6
←
6
←
7
←
7
↙
7
2000m
↖
5
↖
6
↖
6
↖
6
↖
5
↖
5
↖
5
←
5
←
5
←
5
↙
6
↙
6
↙
5
1800m
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 12:39
⚠️ This report is informational only. The final decision to fly always rests with the pilot on site.