Flying not recommended

Betelberg (Mülkerblatten) — 1929m

Imported · Orientation NE, E, SE · 90°
25%
Local flying
Best window: 6h — 7h
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 6h — 7hXC window No clear XC windowWatch-out: Tailwind / strong back-cross at launch
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Launch wind
7 km/h
W · 249°
Gust spread
28 km/h
rough launch feel
Lift quality
0.3 m/s
2/5 climb support
Cloud base
1214 m
38.9 km
Precipitation risk
0.4 mm/h
light showers possible
Flying not recommended

Betelberg (Mülkerblatten) — 1929m

Imported · Orientation NE, E, SE · 90°

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Hourly windows

2026-05-04 · Local flying
6h
🌙
NIGHT
7h
⛅
GO
8h
⛅
MARGINAL
9h
🌤
MARGINAL
10h
🌤
MARGINAL
11h
🌤
MARGINAL
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
tailwind
20h
🌦
NO-GO
tailwind
Best window: 6h — 7h
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
——
1949m
2104m
2144m
2184m
2224m
2244m
2249m
2224m
2179m
2124m
2059m
Base
clouds
——
2404m
2629m
2954m
3217m
3342m
3317m
3229m
3067m
2879m
2692m
2567m
3600m
↗
17
↗
19
↗
20
↗
21
↗
21
↗
21
↗
20
↗
20
↑
20
↑
20
↗
21
↗
21
↗
22
3400m
↗
16
↗
17
↗
18
↗
19
↗
18
↗
18
↗
17
↑
18
↑
18
↑
19
↑
19
↗
19
↗
19
3200m
↗
14
↗
15
↗
17
↗
16
↗
15
↗
15
↑
15
↑
16
↑
17
↑
17
↑
16
↑
16
↑
16
3000m
↑
13
↗
14
↗
15
↗
14
↗
13
↗
12
↑
12
↑
14
↑
15
↑
15
↑
15
↗
14
↗
14
2800m
↑
12
↗
12
↗
13
↗
13
↗
12
↗
11
↑
11
↑
13
↑
14
↗
14
↗
13
↗
13
↗
13
2600m
↑
10
↑
11
↑
11
↗
11
↑
10
↑
10
↗
10
↗
12
↗
13
↗
13
↗
12
↗
12
↗
11
2400m
↑
9
↑
9
↑
10
↑
9
↑
9
↑
9
↗
9
↗
10
↗
12
↗
12
→
11
→
10
→
10
2200m
↑
8
↑
8
↑
8
↑
8
↑
8
↑
7
↗
7
↗
9
↗
11
→
11
→
10
→
9
→
8
2000mLAUNCH
↖
6
↖
6
↑
6
↑
6
↑
6
↑
6
↗
6
→
8
→
10
→
10
→
8
↘
8
↘
7
1800m
↖
6
↖
6
↖
6
↑
6
↑
6
↑
6
↗
6
→
8
→
9
→
9
→
8
↘
7
↘
6
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 20:07
⚠️ This report is informational only. The final decision to fly always rests with the pilot on site.