Marginal conditions

Les Attelas — 2637m

Imported · Orientation SW, W · 247°
33%
Local flying
Best window: No clear local window
Local flying reaches 33% because launch wind and basic weather stay usable, but the day does not generate enough lift to feel easy or rewarding for long.
Local window No clear local windowXC window No clear XC window
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Launch wind
11 km/h
SE · 147°
Gust spread
38 km/h
rough launch feel
Lift quality
0.0 m/s
0/5 climb support
Cloud base
646 m
14.6 km
Precipitation risk
Dry
no signal
Marginal conditions

Les Attelas — 2637m

Imported · Orientation SW, W · 247°

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Hourly windows

2026-05-04 · Local flying
6h
🌙
NIGHT
7h
☁️
MARGINAL
8h
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MARGINAL
9h
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MARGINAL
10h
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MARGINAL
11h
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MARGINAL
12h
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MARGINAL
13h
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MARGINAL
14h
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MARGINAL
15h
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MARGINAL
16h
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MARGINAL
17h
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MARGINAL
18h
🌧
NO-GO
19h
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NO-GO
20h
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NO-GO
low vis
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
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3052m
3047m
3047m
3047m
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3037m
3022m
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2972m
2942m
2912m
Base
clouds
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3012m
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3175m
3237m
3300m
3350m
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3425m
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3287m
3600m
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3400m
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3200m
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3000m
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2800m
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2600mLAUNCH
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2400m
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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 12:36
⚠️ This report is informational only. The final decision to fly always rests with the pilot on site.