Acceptable conditions

Grütschalp — 1608m

Imported · Orientation E, SE · 113°

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Hourly windows

2026-04-05 · Local flying
6h
🌙
NIGHT
7h
🌤
MARGINAL
8h
⛅
NO-GO
tailwind
9h
⛅
GO
10h
🌤
MARGINAL
11h
🌤
MARGINAL
12h
🌤
MARGINAL
13h
🌤
MARGINAL
14h
🌤
MARGINAL
15h
🌤
MARGINAL
16h
🌤
MARGINAL
17h
⛅
MARGINAL
18h
⛅
MARGINAL
19h
☁️
GO
20h
☁️
MARGINAL
Best window: 9h — 9h
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
——
1623m
1623m
1628m
1653m
1698m
1763m
1793m
1813m
1778m
1828m
1628m
Base
clouds
——
3121m
3383m
3246m
3121m
3396m
3546m
3758m
3558m
3508m
3608m
3071m
3600m
→
35
→
34
→
36
→
36
→
39
→
38
→
38
→
36
→
39
→
40
→
40
→
37
→
36
3400m
→
33
→
31
→
34
→
35
→
38
→
36
→
36
→
34
↗
36
↗
38
→
38
→
36
→
34
3200m
→
31
→
29
→
32
→
34
→
36
→
35
→
35
↗
32
↗
34
↗
36
↗
37
→
34
→
31
3000m
→
28
→
26
→
28
→
31
→
32
→
31
→
31
→
29
↗
30
↗
32
→
32
→
31
→
28
2800m
→
24
→
23
→
25
→
27
→
27
→
27
→
27
→
25
→
25
→
27
→
27
→
27
→
25
2600m
→
21
→
20
→
21
→
22
→
23
→
22
→
23
→
21
→
21
→
22
→
22
→
23
→
21
2400m
→
18
→
17
→
17
→
18
→
18
→
18
→
18
→
17
→
17
→
17
→
17
→
19
→
18
2200m
→
15
→
14
→
14
→
14
→
13
→
13
→
14
→
13
→
12
→
12
→
12
→
16
→
15
2000m
↗
12
↗
11
→
10
↗
10
→
9
→
10
→
11
→
10
→
9
→
9
↘
9
→
13
→
12
1800m
↗
8
↗
9
→
6
↗
6
↘
6
↘
8
↘
9
↘
9
↘
9
↘
10
↘
10
↘
11
↘
11
1600mLAUNCH
↗
5
↗
6
↘
3
↑
2
↙
3
↓
5
↓
7
↓
8
↓
8
↓
11
↓
11
↓
10
↘
10
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) · 2026-04-05 · Data fetched on 5 Apr at 20:54
⚠️ This report is informational only. The final decision to fly always rests with the pilot on site.