Flying not recommended

Chou (tsou) — 1533m

Imported · Orientation NE, E, SE · 90°
25%
Local flying
Best window: 6h — 9h
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 6h — 9hXC window No clear XC windowWatch-out: Tailwind / strong back-cross at launch
Save this forecast to your account for quick access later.
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
1007 m
37.8 km
Precipitation risk
0.4 mm/h
light showers possible
Flying not recommended

Chou (tsou) — 1533m

Imported · Orientation NE, E, SE · 90°

Save this forecast to your account for quick access later.

Hourly windows

2026-05-04 · Local flying
6h
🌙
NIGHT
7h
⛅
GO
8h
⛅
GO
9h
⛅
GO
10h
⛅
MARGINAL
11h
⛅
NO-GO
tailwind
12h
🌦
NO-GO
tailwind
13h
🌦
NO-GO
14h
🌦
NO-GO
15h
🌦
NO-GO
tailwind
16h
🌦
NO-GO
tailwind
17h
🌦
NO-GO
tailwind
18h
🌦
NO-GO
tailwind
19h
🌦
NO-GO
tailwind
20h
🌦
MARGINAL
Best window: 6h — 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
1733m
1928m
2153m
2363m
2513m
2573m
2508m
2343m
2123m
1893m
Base
clouds
——
2108m
2321m
2633m
2808m
2758m
2521m
2371m
2345m
2346m
2308m
2233m
3600m
↗
19
↗
20
↗
22
↗
22
↗
23
↗
24
↗
24
↗
23
↗
23
↗
23
↗
22
↗
22
↗
21
3400m
↗
18
↗
19
↗
19
↗
20
↗
20
↗
21
↗
22
↑
22
↑
22
↑
21
↑
20
↗
19
↗
18
3200m
↗
16
↗
17
↗
17
↗
17
↗
18
↗
19
↑
20
↑
21
↑
21
↑
20
↑
18
↑
17
↗
15
3000m
↗
15
↗
15
↗
15
↗
15
↗
15
↑
16
↑
17
↑
19
↑
20
↑
18
↑
16
↑
15
↗
13
2800m
↑
13
↗
13
↗
13
↑
13
↑
13
↑
14
↗
14
↗
16
↗
17
↗
16
↗
15
↗
14
↗
12
2600m
↑
11
↑
11
↑
11
↑
11
↑
11
↑
11
↗
11
↗
13
↗
14
↗
14
↗
13
↗
12
↗
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
1800m
↖
5
↖
6
↖
5
↖
4
↑
3
↗
3
→
3
↘
6
↘
8
↘
8
↘
9
→
8
→
6
1600mLAUNCH
↖
4
↖
5
↖
5
↖
3
↗
2
→
3
↘
5
↘
7
↘
9
↘
9
↘
9
→
8
→
6
1400m
↖
4
↖
5
↖
5
↖
3
→
1
↘
4
↘
6
↘
8
↘
9
↘
9
↘
8
↘
7
→
5
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 20:09
⚠️ This report is informational only. The final decision to fly always rests with the pilot on site.