Flying not recommended

Gempen — 645m

Jura · Orientation S

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Hourly windows

2026-04-05 · Local flying

🌙

NIGHT

☀️

MARGINAL

☀️

MARGINAL

10h

⛅

MARGINAL

11h

☁️

MARGINAL

12h

☁️

MARGINAL

13h

🌤

NO-GO

gusts

14h

⛅

NO-GO

gusts

15h

☁️

NO-GO

gusts

16h

☁️

NO-GO

gusts

17h

☁️

NO-GO

gusts

18h

☁️

NO-GO

gusts

19h

☁️

MARGINAL

20h

☁️

MARGINAL

Best window: 7h — 7h

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	—	—	690m	755m	870m	1590m	1985m	2205m	2270m	1970m	1675m	1530m	1330m
Base clouds	—	—	1520m	1820m	1745m	1882m	2045m	2095m	2358m	2683m	2733m	2295m	2158m
3600m	→ 57	→ 58	→ 62	→ 65	→ 65	→ 61	→ 66	→ 62	→ 64	→ 67	→ 70	→ 73	→ 71
3400m	→ 57	→ 57	→ 63	→ 64	→ 65	→ 60	→ 65	→ 60	→ 62	→ 67	→ 69	→ 71	→ 70
3200m	→ 57	→ 57	→ 64	→ 63	→ 64	→ 60	→ 64	→ 57	→ 61	→ 67	→ 69	→ 69	→ 68
3000m	→ 57	→ 56	→ 63	→ 62	→ 63	→ 59	→ 63	→ 55	→ 59	→ 65	→ 67	→ 67	→ 66
2800m	→ 55	→ 55	→ 62	→ 62	→ 63	→ 59	→ 61	→ 54	→ 58	→ 62	→ 64	→ 63	→ 64
2600m	→ 54	→ 54	→ 61	→ 61	→ 62	→ 59	→ 59	→ 53	→ 56	→ 59	→ 61	→ 60	→ 61
2400m	→ 52	→ 53	→ 59	→ 60	→ 62	→ 58	→ 57	→ 52	→ 55	→ 57	→ 59	→ 56	→ 58
2200m	→ 51	→ 52	→ 58	→ 59	→ 61	→ 58	→ 55	→ 50	→ 53	→ 54	→ 56	→ 52	→ 56
2000m	→ 49	→ 51	→ 57	→ 58	→ 60	→ 58	→ 53	→ 49	→ 52	→ 51	→ 53	→ 49	→ 53
1800m	→ 47	→ 49	→ 56	→ 57	→ 60	→ 58	→ 51	→ 48	→ 50	→ 48	→ 50	→ 46	→ 50
1600m	→ 46	→ 48	→ 54	→ 56	→ 59	→ 58	→ 49	→ 46	→ 48	→ 46	→ 47	→ 42	→ 48
1400m	→ 39	→ 41	→ 46	→ 48	→ 51	→ 51	→ 44	→ 42	→ 44	→ 41	→ 43	→ 38	→ 42
1200m	→ 30	→ 32	→ 37	→ 38	→ 40	→ 43	→ 37	→ 37	→ 40	→ 37	→ 38	→ 33	→ 36
1000m	→ 21	→ 23	→ 27	→ 27	→ 29	→ 34	→ 31	→ 31	→ 35	→ 32	→ 33	→ 29	→ 29
800m	→ 12	→ 14	→ 17	→ 17	→ 18	→ 25	→ 25	→ 26	→ 30	→ 28	→ 27	→ 24	→ 23
600mLAUNCH	→ 4	↗ 6	→ 7	→ 7	→ 8	↗ 17	→ 19	→ 21	→ 26	→ 23	→ 23	→ 20	→ 18
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) · 2026-04-05 · Data fetched on 5 Apr at 16:12
⚠️ This report is informational only. The final decision to fly always rests with the pilot on site.