Marginal conditions

Fuerenalp — 1911m

Imported · Orientation S, SW · 202°
35%
Local flying
Best window: No clear local window
Local flying reaches 35% 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
Forecast-based estimate — not a flight clearance. Always check live conditions and assess on site.
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Launch wind
8 km/h
W · 284°
Gust spread
40 km/h
rough launch feel
Lift quality
0.1 m/s
0/5 climb support
Cloud base
623 m
34.7 km
Precipitation risk
Dry
no signal
Marginal conditions

Fuerenalp — 1911m

Imported · Orientation S, SW · 202°

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Hourly windows

2026-08-18 · Local flying
6h
🌙
NIGHT
7h
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MARGINAL
8h
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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
——
1936m
2021m
2576m
2691m
2746m
2806m
2866m
2891m
2886m
2796m
2536m
Base
clouds
——
2161m
2248m
2349m
2436m
2486m
2549m
2574m
2636m
2711m
2724m
2611m
3600m
↘
46
↘
48
↘
49
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48
↘
46
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44
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42
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40
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38
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36
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35
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33
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34
3400m
↘
40
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42
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42
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41
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39
↘
37
↘
36
↘
35
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34
↘
32
↘
30
↘
29
↘
30
3200m
↘
34
↘
35
↘
35
↘
34
↘
32
↘
31
↘
30
↘
30
↘
30
↘
28
↘
25
↘
24
↘
25
3000m
→
29
→
30
→
30
→
30
→
28
→
27
↘
26
↘
26
↘
26
↘
24
↘
22
→
21
→
22
2800m
→
25
→
26
→
26
→
26
→
24
→
23
→
23
→
23
→
22
→
21
→
20
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19
→
19
2600m
→
21
→
22
→
22
→
22
→
21
→
20
→
19
→
19
→
19
→
18
→
17
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17
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17
2400m
→
17
→
18
→
18
→
18
→
17
→
16
→
16
→
16
→
15
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15
→
15
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15
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14
2200m
→
13
→
13
→
14
→
14
→
13
→
13
→
13
→
12
→
11
→
11
→
12
→
13
→
12
2000mLAUNCH
→
10
→
10
→
10
→
10
→
10
→
10
→
10
→
9
→
9
→
9
→
11
→
11
→
10
1800mLAUNCH
→
8
→
8
→
9
→
9
→
10
→
10
→
10
→
9
→
8
→
9
→
10
→
11
→
9
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
Updated 77h ago

Sources: Open-Meteo (AROME 1.3km, ICON-D2 2km) · 2026-08-18
⚠️ This report is informational only. The final decision to fly always rests with the pilot on site.