Acceptable conditions

Fronalpstock — 1894m

Imported · Orientation SE, S, SW · 180°
60%
Local flying
Best window: 6h — 11h
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 6h — 11hXC window No clear XC window
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Launch wind
3 km/h
S · 196°
Gust spread
33 km/h
rough launch feel
Lift quality
0.5 m/s
4/5 climb support
Cloud base
1698 m
36.9 km
Precipitation risk
0.7 mm/h
becomes limiting
Acceptable conditions

Fronalpstock — 1894m

Imported · Orientation SE, S, SW · 180°

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Hourly windows

2026-05-04 · Local flying
6h
🌙
NIGHT
7h
☁️
GO
8h
☁️
GO
9h
⛅
GO
10h
⛅
GO
11h
⛅
GO
12h
☁️
MARGINAL
13h
☁️
NO-GO
tailwind
14h
☁️
NO-GO
tailwind
15h
⛈
NO-GO
tailwind
16h
⛈
NO-GO
tailwind
17h
⛈
NO-GO
tailwind
18h
⛈
NO-GO
tailwind
19h
⛈
NO-GO
tailwind
20h
⛈
NO-GO
tailwind
Best window: 6h — 11h
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
——
2054m
2129m
2269m
2429m
2584m
2709m
2779m
2784m
2744m
2679m
2589m
Base
clouds
——
3007m
3157m
3407m
3632m
3844m
4069m
3969m
3407m
2819m
2419m
2232m
3600m
↗
9
↗
10
↑
11
↗
13
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14
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15
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15
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14
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14
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16
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19
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21
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21
3400m
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8
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8
↑
9
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11
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12
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13
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13
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13
↑
14
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16
↑
18
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20
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19
3200m
↗
6
↑
6
↑
7
↑
8
↑
10
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11
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12
↑
13
↑
13
↑
15
↑
18
↑
19
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18
3000m
↗
6
↑
5
↑
6
↑
7
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10
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11
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11
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16
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16
2800m
↗
6
↑
6
↑
6
↑
7
↑
8
↑
9
↑
9
↑
10
↑
10
↑
11
↗
13
↗
15
↑
14
2600m
↑
6
↑
6
↑
6
↑
7
↑
8
↑
8
↑
8
↑
8
↑
8
↗
9
↗
11
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12
↗
11
2400m
↑
6
↑
6
↑
6
↑
7
↑
7
↑
8
↑
7
↑
7
↑
6
↗
6
↗
8
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9
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9
2200m
↑
6
↑
6
↑
6
↑
7
↑
7
↑
7
↑
6
↑
5
↑
4
↗
3
→
5
→
6
↗
6
2000mLAUNCH
↖
7
↖
7
↖
7
↖
6
↖
7
↖
6
↖
5
↖
3
↑
2
↗
1
→
2
→
3
→
4
1800mLAUNCH
↑
7
↑
7
↑
7
↖
6
↖
6
↖
5
↖
4
←
3
←
2
→
2
↘
3
↘
4
→
5
1600m
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) · 2026-05-04 · Data fetched on 28 Apr at 18:28
⚠️ This report is informational only. The final decision to fly always rests with the pilot on site.