Flying not recommended

Fronalpstock N — 1840m

Imported · Orientation N · 0°
25%
Local flying
Best window: 13h — 14h
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 13h — 14hXC window No clear XC windowWatch-out: Tailwind / strong back-cross at launch
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Launch wind
3 km/h
S · 196°
Gust spread
33 km/h
rough launch feel
Lift quality
0.5 m/s
4/5 climb support
Cloud base
1675 m
36.9 km
Precipitation risk
0.7 mm/h
becomes limiting
Flying not recommended

Fronalpstock N — 1840m

Imported · Orientation N · 0°

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Hourly windows

2026-05-04 · Local flying
6h
🌙
NIGHT
7h
☁️
NO-GO
tailwind
8h
☁️
NO-GO
tailwind
9h
⛅
NO-GO
tailwind
10h
⛅
NO-GO
tailwind
11h
⛅
MARGINAL
12h
☁️
MARGINAL
13h
☁️
GO
14h
☁️
GO
15h
⛈
MARGINAL
16h
⛈
MARGINAL
17h
⛈
MARGINAL
18h
⛈
NO-GO
rain
19h
⛈
NO-GO
rain
20h
⛈
NO-GO
rain
Best window: 13h — 14h
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
——
2000m
2075m
2215m
2375m
2530m
2655m
2725m
2730m
2690m
2625m
2535m
Base
clouds
——
2952m
3090m
3340m
3565m
3765m
3978m
3878m
3340m
2740m
2378m
2190m
3600m
↗
9
↗
10
↑
11
↗
13
↗
14
↗
15
↗
15
↗
14
↗
14
↗
16
↗
19
↗
21
↗
21
3400m
↗
8
↗
8
↑
9
↑
11
↗
12
↗
13
↗
13
↗
13
↑
14
↗
16
↑
18
↗
20
↑
19
3200m
↗
6
↑
6
↑
7
↑
8
↑
10
↑
11
↑
12
↑
13
↑
13
↑
15
↑
18
↑
19
↑
18
3000m
↗
6
↑
5
↑
6
↑
7
↑
8
↑
10
↑
11
↑
11
↑
12
↑
14
↑
16
↑
18
↑
16
2800m
↗
6
↑
6
↑
6
↑
7
↑
8
↑
9
↑
9
↑
10
↑
10
↑
11
↗
13
↗
15
↑
14
2600m
↑
6
↑
6
↑
6
↑
7
↑
8
↑
8
↑
8
↑
8
↑
8
↗
9
↗
11
↗
12
↗
11
2400m
↑
6
↑
6
↑
6
↑
7
↑
7
↑
8
↑
7
↑
7
↑
6
↗
6
↗
8
↗
9
↗
9
2200m
↑
6
↑
6
↑
6
↑
7
↑
7
↑
7
↑
6
↑
5
↑
4
↗
3
→
5
→
6
↗
6
2000m
↖
7
↖
7
↖
7
↖
6
↖
7
↖
6
↖
5
↖
3
↑
2
↗
1
→
2
→
3
→
4
1800mLAUNCH
↑
7
↑
7
↑
7
↖
6
↖
6
↖
5
↖
4
←
3
←
2
→
2
↘
3
↘
4
→
5
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 18:28
⚠️ This report is informational only. The final decision to fly always rests with the pilot on site.