Flying not recommended

Les Sairins — 967m

Jura · Orientation N
23%
Local flying
Best window: No clear local window
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 No clear local windowXC window No clear XC windowWatch-out: Tailwind / strong back-cross at launch
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Launch wind
3 km/h
SW · 239°
Gust spread
19 km/h
rough launch feel
Lift quality
0.1 m/s
0/5 climb support
Cloud base
514 m
14.9 km
Precipitation risk
0.7 mm/h
becomes limiting
Flying not recommended

Les Sairins — 967m

Jura · Orientation N

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Hourly windows

2026-05-04 · Local flying
6h
🌙
NIGHT
7h
☁️
NO-GO
tailwind
8h
☁️
NO-GO
tailwind
9h
🌧
NO-GO
tailwind
10h
🌧
NO-GO
tailwind
11h
🌧
NO-GO
tailwind
12h
🌦
NO-GO
tailwind
13h
🌦
NO-GO
tailwind
14h
🌦
NO-GO
tailwind
15h
⛈
NO-GO
16h
⛈
MARGINAL
17h
⛈
MARGINAL
18h
🌦
NO-GO
rain
19h
🌦
NO-GO
rain
20h
🌦
NO-GO
rain
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
——
1117m
1172m
1262m
1362m
1457m
1522m
1547m
1512m
1432m
1332m
1217m
Base
clouds
——
1229m
1267m
1342m
1405m
1480m
1554m
1592m
1542m
1454m
1367m
1292m
3600m
↗
34
↗
32
↗
31
↗
29
↗
28
↑
28
↑
27
↑
26
↑
25
↗
23
↗
21
↗
20
↗
17
3400m
↗
35
↗
33
↗
31
↗
29
↑
27
↑
27
↑
26
↑
25
↑
24
↑
22
↗
20
↗
19
↑
16
3200m
↗
36
↗
33
↗
30
↗
28
↑
27
↑
26
↑
25
↑
24
↑
22
↑
21
↑
19
↑
17
↑
15
3000m
↗
37
↗
33
↗
30
↗
28
↑
26
↑
26
↑
24
↑
23
↑
21
↑
19
↑
17
↑
16
↑
14
2800m
↗
38
↗
34
↗
31
↗
28
↑
26
↑
25
↑
23
↑
21
↑
19
↑
17
↑
15
↑
14
↑
12
2600m
↗
38
↗
35
↗
32
↗
29
↑
27
↑
25
↑
22
↑
19
↑
17
↑
15
↑
13
↑
12
↑
10
2400m
↗
38
↗
35
↗
32
↗
29
↗
27
↑
24
↑
21
↑
18
↑
15
↑
13
↑
10
↑
9
↑
8
2200m
↗
39
↗
36
↗
33
↗
30
↗
27
↑
24
↑
20
↑
16
↑
13
↑
10
↑
8
↗
7
↗
7
2000m
↗
39
↗
37
↗
34
↗
30
↗
27
↗
23
↑
19
↑
14
↑
11
↑
8
↑
6
↗
5
↗
5
1800m
↗
38
↗
36
↗
33
↗
28
↗
24
↗
20
↗
15
↗
11
↑
8
↗
6
↗
5
↗
5
↗
6
1600m
↗
37
↗
35
↗
32
↗
26
↗
21
↗
15
↗
11
↗
8
↗
5
↗
4
→
5
→
6
→
8
1400m
↗
34
↗
31
↗
28
↗
22
↗
16
↗
11
↗
8
↗
5
↗
3
→
2
→
4
↘
6
→
9
1200m
↗
24
↗
21
↗
18
↗
15
↗
11
↗
8
↗
6
↗
4
↗
3
→
3
↘
5
↘
7
↘
9
1000mLAUNCH
↗
13
↗
11
↑
9
↑
7
↗
6
↗
5
↗
4
↗
3
↗
3
→
3
↘
5
↘
8
↘
9
800m
↑
7
↑
6
↑
5
↑
4
↑
3
↗
3
↗
3
↗
3
↗
2
→
3
↘
5
↘
7
↘
8
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 12:36
⚠️ This report is informational only. The final decision to fly always rests with the pilot on site.