Marginal conditions

La Truche — 1394m

Imported · Orientation SW, W · 247°
35%
Local flying
Best window: 11h — 11h
Local flying reaches 35% because the launch setup looks mostly workable, while lift quality and timing are what keep the score from climbing higher.
Local window 11h — 11hXC window No clear XC window
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Launch wind
7 km/h
N · 342°
Gust spread
29 km/h
rough launch feel
Lift quality
0.4 m/s
2/5 climb support
Cloud base
948 m
37.0 km
Precipitation risk
0.1 mm/h
light showers possible
Marginal conditions

La Truche — 1394m

Imported · Orientation SW, W · 247°

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Hourly windows

2026-05-04 · Local flying
6h
🌙
NIGHT
7h
⛅
MARGINAL
8h
⛅
MARGINAL
9h
☁️
MARGINAL
10h
☁️
MARGINAL
11h
☁️
GO
12h
☁️
NO-GO
13h
☁️
NO-GO
14h
☁️
NO-GO
15h
☁️
NO-GO
16h
☁️
NO-GO
17h
☁️
MARGINAL
18h
☁️
MARGINAL
19h
☁️
NO-GO
20h
☁️
NO-GO
Best window: 11h — 11h
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
——
1459m
1579m
1744m
1924m
2099m
2234m
2299m
2274m
2189m
2059m
1914m
Base
clouds
——
1869m
1969m
2082m
2206m
2319m
2419m
2482m
2482m
2407m
2382m
2381m
3600m
↗
22
↗
24
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26
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26
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27
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27
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28
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28
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28
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28
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27
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26
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26
3400m
↗
22
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23
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24
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25
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26
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26
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27
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28
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28
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27
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26
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25
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24
3200m
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22
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22
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22
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23
↗
25
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25
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26
↑
27
↑
27
↑
26
↑
25
↗
23
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22
3000m
↗
20
↗
20
↗
20
↗
21
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23
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24
↑
24
↑
25
↑
26
↑
25
↑
23
↗
21
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20
2800m
↑
17
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17
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17
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18
↑
19
↑
20
↑
21
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21
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22
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21
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20
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19
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18
2600m
↑
15
↑
14
↑
14
↑
15
↑
16
↑
17
↑
17
↗
17
↗
18
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18
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17
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17
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15
2400m
↑
12
↑
11
↑
11
↑
12
↑
13
↑
13
↑
13
↗
13
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14
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15
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15
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14
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13
2200m
↑
9
↑
9
↑
8
↑
9
↑
9
↑
9
↑
9
↗
9
↗
10
↗
11
→
12
→
12
→
11
2000m
↑
6
↑
6
↑
5
↑
6
↑
6
↑
6
↑
5
↗
5
→
6
→
8
→
10
→
10
→
9
1800m
↖
5
↖
5
↖
5
↑
4
↑
4
↗
4
→
5
→
6
→
7
→
8
→
9
→
9
→
7
1600m
↖
4
↖
4
↖
4
↖
3
↗
2
→
3
↘
5
↘
7
↘
9
↘
9
↘
8
↘
7
→
5
1400mLAUNCH
↖
4
↖
5
↖
5
↖
3
→
1
↘
3
↘
6
↓
8
↓
9
↘
9
↘
8
↘
6
↘
5
1200m
↑
5
↖
6
↖
5
↖
2
↘
2
↘
5
↓
7
↓
9
↓
9
↓
9
↘
8
↘
6
↘
4
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.