Flying not recommended

Montmelon — 928m

Jura · Orientation N, NW

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Hourly windows

2026-04-05 · Local flying

🌙

NIGHT

☀️

MARGINAL

🌤

10h

☁️

MARGINAL

11h

⛅

MARGINAL

12h

☁️

MARGINAL

13h

🌤

NO-GO

gusts

14h

🌤

NO-GO

gusts

15h

☁️

NO-GO

gusts

16h

☁️

NO-GO

gusts

17h

☁️

18h

☁️

19h

☁️

MARGINAL

20h

⛅

MARGINAL

Best window: 17h — 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	—	—	1038m	1383m	1843m	2073m	2143m	2298m	2508m	2278m	2273m	2013m	1793m
Base clouds	—	—	1603m	1665m	1978m	2191m	2241m	2128m	2516m	2778m	2590m	2278m	2016m
3600m	→ 56	→ 59	→ 63	→ 63	→ 65	→ 63	→ 64	→ 65	→ 68	→ 67	→ 71	→ 73	→ 71
3400m	→ 55	→ 59	→ 63	→ 62	→ 64	→ 62	→ 62	→ 63	→ 67	→ 67	→ 71	↗ 74	→ 70
3200m	→ 55	→ 59	→ 63	→ 61	→ 63	→ 61	→ 60	→ 62	→ 66	→ 67	→ 70	↗ 74	→ 69
3000m	→ 54	→ 58	→ 63	→ 60	→ 61	→ 60	→ 59	→ 60	→ 65	→ 65	→ 69	↗ 71	→ 66
2800m	→ 52	→ 57	→ 62	→ 60	→ 60	→ 60	→ 57	→ 59	→ 63	→ 63	→ 66	↗ 66	→ 63
2600m	→ 51	→ 56	→ 61	→ 60	→ 59	→ 59	→ 56	→ 58	→ 60	→ 60	→ 63	→ 62	→ 59
2400m	→ 50	→ 55	→ 60	→ 59	→ 58	→ 59	→ 55	→ 57	→ 58	→ 58	→ 61	→ 58	→ 56
2200m	→ 49	→ 54	→ 59	→ 59	→ 57	→ 58	→ 54	→ 56	→ 56	→ 56	→ 58	→ 53	→ 53
2000m	→ 48	→ 53	→ 57	→ 59	→ 56	→ 58	→ 53	→ 55	→ 54	→ 53	→ 55	→ 49	→ 49
1800m	→ 46	→ 52	→ 56	→ 58	→ 55	→ 57	→ 52	→ 54	→ 51	→ 51	→ 53	→ 44	→ 46
1600m	→ 45	→ 51	→ 55	→ 58	→ 55	→ 57	→ 51	→ 53	→ 49	→ 48	→ 50	→ 39	→ 42
1400m	→ 38	→ 44	→ 47	→ 50	→ 49	→ 52	→ 46	→ 49	→ 45	→ 44	→ 45	→ 35	→ 38
1200m	→ 30	→ 35	→ 37	→ 39	→ 41	→ 44	→ 41	→ 43	→ 40	→ 39	→ 39	→ 30	→ 33
1000mLAUNCH	→ 21	→ 25	→ 27	→ 29	→ 34	→ 37	→ 35	→ 37	→ 35	→ 34	→ 34	→ 26	→ 28
800m	→ 13	→ 15	→ 16	→ 18	→ 26	→ 29	→ 29	→ 31	→ 30	→ 30	→ 28	→ 22	→ 24
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) · 2026-04-05 · Data fetched on 5 Apr at 18:29
⚠️ This report is informational only. The final decision to fly always rests with the pilot on site.