Acceptable conditions

Stelserberg W — 1509m

Imported · Orientation W · 270°
60%
Local flying
Best window: 10h — 13h
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 10h — 13hXC window No clear XC window
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Launch wind
6 km/h
SW · 213°
Gust spread
26 km/h
rough launch feel
Lift quality
0.4 m/s
2/5 climb support
Cloud base
2014 m
41.0 km
Precipitation risk
Dry
no signal
Acceptable conditions

Stelserberg W — 1509m

Imported · Orientation W · 270°

Save this forecast to your account for quick access later.

Hourly windows

2026-05-04 · Local flying
6h
🌙
NIGHT
7h
⛅
MARGINAL
8h
⛅
MARGINAL
9h
🌤
MARGINAL
10h
🌤
GO
11h
🌤
GO
12h
⛅
GO
13h
⛅
GO
14h
⛅
MARGINAL
15h
☁️
GO
16h
☁️
GO
17h
☁️
MARGINAL
18h
☁️
NO-GO
19h
☁️
MARGINAL
20h
☁️
NO-GO
Best window: 10h — 13h
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
——
1639m
2039m
2584m
3049m
3289m
3624m
3754m
3619m
3279m
2824m
2339m
Base
clouds
——
2347m
2559m
2972m
3347m
3609m
3797m
3859m
3672m
3409m
3047m
2597m
3600m
↗
20
↗
20
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20
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21
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22
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22
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21
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19
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18
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18
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19
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19
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20
3400m
↗
19
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19
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19
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20
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21
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21
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20
↗
18
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18
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18
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19
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20
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21
3200m
↗
19
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18
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18
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19
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20
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20
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19
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17
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17
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18
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19
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21
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21
3000m
↗
18
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17
↗
17
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17
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18
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18
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18
↗
16
↗
16
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17
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19
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20
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20
2800m
↗
16
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15
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15
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15
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16
↗
16
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16
↗
16
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16
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16
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16
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17
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17
2600m
↑
14
↗
13
↗
14
↑
14
↑
14
↑
14
↗
14
↗
15
↗
16
↗
15
↗
14
↗
14
→
14
2400m
↑
12
↑
12
↑
12
↑
12
↑
12
↑
12
↗
13
↗
15
↗
16
↗
14
↗
12
→
10
→
10
2200m
↑
10
↑
10
↑
11
↑
10
↑
10
↑
10
↑
11
↗
14
↗
15
↗
13
↗
9
→
7
→
7
2000m
↑
8
↑
9
↑
9
↑
8
↑
7
↑
8
↑
10
↗
14
↗
15
↗
12
↗
7
→
4
↘
3
1800m
↑
7
↑
8
↑
9
↑
8
↑
7
↑
7
↑
9
↗
13
↗
14
↗
10
→
5
↘
5
↘
6
1600mLAUNCH
↑
7
↑
8
↑
8
↑
8
↑
6
↑
6
↑
8
↑
11
↗
12
↗
8
→
4
↘
7
↓
8
1400mLAUNCH
↑
7
↑
8
↑
8
↑
7
↑
5
↑
5
↑
7
↑
10
↗
11
↗
7
↘
3
↓
7
↓
9
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 21:58
⚠️ This report is informational only. The final decision to fly always rests with the pilot on site.