Flying not recommended

Montmelon W — 879m

Jura · Orientation SW, W, NW

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Hourly windows

2026-04-05 · Local flying

🌙

NIGHT

☀️

MARGINAL

🌤

10h

☁️

11h

⛅

MARGINAL

12h

☁️

13h

🌤

NO-GO

gusts

14h

🌤

NO-GO

gusts

15h

☁️

NO-GO

gusts

16h

☁️

NO-GO

gusts

17h

☁️

18h

☁️

19h

☁️

MARGINAL

20h

⛅

MARGINAL

Best window: 9h — 10h

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	—	—	989m	1334m	1794m	2024m	2094m	2249m	2459m	2229m	2224m	1964m	1744m
Base clouds	—	—	1554m	1617m	1929m	2142m	2192m	2079m	2467m	2729m	2542m	2229m	1967m
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
1000m	→ 21	→ 25	→ 27	→ 29	→ 34	→ 37	→ 35	→ 37	→ 35	→ 34	→ 34	→ 26	→ 28
800mLAUNCH	→ 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 18:31
⚠️ This report is informational only. The final decision to fly always rests with the pilot on site.