Flying not recommended

L'Alpe des Chaux — 1765m

Imported · Orientation S · 180°
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
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Launch wind
6 km/h
NW · 324°
Gust spread
30 km/h
rough launch feel
Lift quality
0.5 m/s
4/5 climb support
Cloud base
995 m
38.6 km
Precipitation risk
0.4 mm/h
light showers possible
Flying not recommended

L'Alpe des Chaux — 1765m

Imported · Orientation S · 180°

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Hourly windows

2026-05-04 · Local flying
6h
🌙
NIGHT
7h
⛅
MARGINAL
8h
⛅
MARGINAL
9h
⛅
MARGINAL
10h
⛅
NO-GO
tailwind
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
18h
🌦
NO-GO
19h
🌦
NO-GO
20h
🌦
MARGINAL
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
——
1825m
1885m
1950m
2020m
2080m
2130m
2145m
2120m
2070m
1995m
1920m
Base
clouds
——
2340m
2553m
2853m
3028m
2978m
2740m
2590m
2565m
2565m
2540m
2453m
3600m
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19
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20
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3400m
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3200m
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18
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3000m
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13
2800m
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13
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12
2600m
↑
11
↑
11
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11
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11
↑
11
↑
11
↗
11
↗
13
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14
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11
2400m
↑
10
↑
10
↑
9
↑
9
↑
9
↑
8
↗
8
→
10
→
12
→
12
→
12
→
11
→
10
2200m
↑
8
↑
8
↑
7
↑
7
↑
6
↑
6
↗
4
→
7
→
9
→
10
→
10
→
10
→
8
2000m
↖
6
↑
6
↑
5
↑
5
↑
4
↑
3
↗
1
↘
4
↘
6
↘
8
↘
9
→
8
→
7
1800mLAUNCH
↖
5
↖
6
↖
5
↖
4
↑
3
↗
3
→
3
↘
6
↘
8
↘
8
↘
9
→
8
→
6
1600m
↖
4
↖
5
↖
5
↖
3
↗
2
→
3
↘
5
↘
7
↘
9
↘
9
↘
9
→
8
→
6
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 18:33
⚠️ This report is informational only. The final decision to fly always rests with the pilot on site.