Acceptable conditions

Zugerberg — 939m

Imported · Orientation W · 270°

63%

Local flying

Best window: 6h — 18h

Local flying reaches 63% because the launch setup looks mostly workable, while lift quality and timing are what keep the score from climbing higher.

Local window 6h — 18hXC window No clear XC window

Forecast-based estimate — not a flight clearance. Always check live conditions and assess on site.

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Launch wind

12 km/h

W · 270°

Gust spread

37 km/h

rough launch feel

Lift quality

0.3 m/s

2/5 climb support

Cloud base

970 m

39.3 km

Precipitation risk

Dry

no signal

Hourly windows

2026-08-18 · Local flying

🌙

NIGHT

☁️

⛅

☁️

10h

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11h

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12h

☁️

13h

☁️

14h

☁️

15h

☁️

16h

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17h

☁️

18h

☁️

19h

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MARGINAL

20h

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MARGINAL

Best window: 6h — 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.	6h	7h	8h	9h	10h	11h	12h	13h	14h	15h	16h	17h	18h
Top BLH	—	—	1034m	1019m	1739m	2029m	2079m	2089m	1999m	1919m	1804m	1654m	1439m
Base clouds	—	—	1414m	1439m	1501m	1577m	1727m	1939m	2114m	2214m	2289m	2302m	2227m
3600m	↘ 50	↘ 52	↘ 51	↘ 50	↘ 49	↘ 48	↘ 46	↘ 44	↘ 43	↘ 40	↘ 39	↘ 38	↘ 38
3400m	↘ 46	↘ 47	↘ 46	↘ 46	↘ 44	↘ 43	↘ 42	↘ 42	↘ 41	↘ 38	↘ 35	↘ 34	↘ 35
3200m	↘ 42	↘ 42	↘ 41	↘ 41	↘ 39	↘ 38	↘ 38	↘ 39	↘ 39	↘ 36	↘ 32	↘ 30	↘ 32
3000m	↘ 39	↘ 39	↘ 39	↘ 39	↘ 37	↘ 36	↘ 37	↘ 37	↘ 37	↘ 35	↘ 32	↘ 30	↘ 31
2800m	→ 37	→ 37	→ 38	→ 38	→ 36	→ 36	→ 36	→ 36	→ 36	→ 34	→ 32	→ 31	→ 32
2600m	→ 35	→ 36	→ 37	→ 37	→ 36	→ 35	→ 35	→ 35	→ 36	→ 34	→ 33	→ 32	→ 32
2400m	→ 33	→ 34	→ 35	→ 36	→ 35	→ 35	→ 35	→ 35	→ 35	→ 34	→ 33	→ 33	→ 32
2200m	→ 30	→ 32	→ 34	→ 35	→ 34	→ 34	→ 34	→ 34	→ 34	→ 34	→ 34	→ 34	→ 33
2000m	→ 28	→ 31	→ 33	→ 33	→ 33	→ 33	→ 33	↗ 32	↗ 32	↗ 33	→ 33	→ 33	→ 32
1800m	→ 27	→ 29	→ 31	→ 31	→ 31	→ 30	→ 29	→ 28	→ 27	→ 26	→ 26	→ 26	→ 25
1600m	→ 25	→ 27	→ 28	→ 29	→ 29	→ 28	→ 26	→ 23	→ 21	→ 20	→ 19	→ 19	→ 19
1400m	→ 21	→ 23	→ 24	→ 25	→ 25	→ 25	→ 23	→ 21	→ 19	→ 18	→ 16	→ 15	→ 15
1200m	→ 17	→ 17	→ 19	→ 19	→ 20	→ 21	→ 21	→ 20	→ 19	→ 18	→ 16	→ 14	→ 11
1000mLAUNCH	→ 12	→ 12	→ 13	→ 14	→ 15	→ 17	→ 18	→ 18	→ 18	→ 17	→ 14	→ 12	→ 8
800m	→ 5	→ 5	→ 7	→ 8	→ 11	→ 13	→ 14	→ 14	→ 14	→ 13	→ 12	→ 10	→ 6
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

Updated 76h ago

Sources: Open-Meteo (AROME 1.3km, ICON-D2 2km) · 2026-08-18
⚠️ This report is informational only. The final decision to fly always rests with the pilot on site.