Acceptable conditions

Le Treh (Markstein) — 1206m

Vosges · Orientation W, SW
60%
Local flying
Best window: 13h — 18h
Local flying reaches 60% because the launch setup looks mostly workable, while lift quality and timing are what keep the score from climbing higher.
Local window 13h — 18hXC window No clear XC window
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Launch wind
5 km/h
SE · 131°
Gust spread
22 km/h
rough launch feel
Lift quality
0.2 m/s
2/5 climb support
Cloud base
2225 m
44.1 km
Precipitation risk
Dry
no signal
Acceptable conditions

Le Treh (Markstein) — 1206m

Vosges · Orientation W, SW

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Send this forecast to a flying buddy.

Hourly windows

2026-06-18 · Local flying
6h
☀️
MARGINAL
7h
☀️
MARGINAL
8h
☀️
NO-GO
tailwind
9h
☀️
MARGINAL
10h
☀️
MARGINAL
11h
☀️
MARGINAL
12h
☀️
MARGINAL
13h
☀️
GO
14h
☀️
GO
15h
☀️
GO
16h
☀️
GO
17h
☀️
GO
18h
☀️
GO
19h
☀️
MARGINAL
20h
☀️
MARGINAL
Best window: 13h — 18h
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
——
1311m
1621m
2046m
2531m
2981m
3311m
3436m
3296m
2951m
2481m
1986m
Base
clouds
——
2194m
2356m
2719m
3031m
3306m
3493m
3694m
3856m
3919m
3919m
3919m
3600m
↘
16
↘
16
↘
15
↘
13
↘
11
↓
8
↓
6
↙
5
↑
6
↗
7
↗
7
↗
8
↗
10
3400m
↘
15
↘
16
↘
15
↘
12
↓
10
↓
8
↓
5
←
3
↑
5
↑
6
↗
6
↗
8
↗
10
3200m
↘
14
↘
15
↘
14
↘
12
↓
10
↓
7
↓
4
←
2
↖
4
↑
5
↑
6
↗
8
↗
9
3000m
↘
13
↘
13
↓
12
↓
10
↓
9
↓
6
↙
4
←
2
↖
4
↖
5
↑
6
↑
7
↑
9
2800m
↓
11
↓
12
↓
11
↓
9
↓
8
↓
6
↙
4
←
3
←
4
↖
5
↖
5
↑
7
↑
8
2600m
↓
10
↓
10
↓
9
↓
8
↓
7
↙
5
↙
4
↙
3
←
4
←
4
↖
5
↖
6
↖
8
2400m
↓
8
↓
8
↓
8
↓
7
↙
6
↙
4
↙
4
↙
3
←
4
←
4
←
5
←
6
←
7
2200m
↓
6
↙
7
↙
6
↙
6
↙
5
↙
4
↙
4
↙
3
↙
4
↙
4
←
5
←
5
←
6
2000m
↙
6
↙
6
↙
6
↙
6
↙
5
←
4
←
4
↙
4
↙
4
↙
4
←
5
←
5
←
6
1800m
←
6
←
7
←
7
←
6
←
6
←
6
←
5
←
5
←
5
←
5
←
5
←
6
←
6
1600m
←
6
←
7
←
7
←
7
←
8
↖
7
↖
7
↖
6
↖
6
↖
5
←
5
←
6
←
7
1400m
←
7
↖
8
←
8
←
8
↖
8
↖
7
↖
7
↖
6
↖
6
↖
6
↖
6
↖
6
↖
8
1200mLAUNCH
↖
8
↖
9
↖
9
↖
8
↖
7
↖
7
↖
6
↖
6
↖
7
↖
6
↖
6
↖
7
↖
8
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) · 2026-06-18 · Data fetched on 12 Jun at 16:57
⚠️ This report is informational only. The final decision to fly always rests with the pilot on site.