— Tools · Dropzone weather · Lazio

WEATHER NETTUNO

Crazy Fly · tandem exit altitude 4000 m. Wind, gusts, cloud and visibility hour-by-hour with 4-model ensemble confidence, plus 7-day daily outlook. Designed to decide whether driving to the dropzone is worth it.

Data updated at: 11:22:30 on 04/11/2026(updated just now)
Open-Meteo · best-match + 4-model ensemble confidence · recomputed every 30 min
Now · 12:00
25/100
No-go
Cloud below exit
Wind
4.7 m/s
SE
Gust
8.9 m/s
Low cloud
51%
~1050 m
Rain
0%
0.0 mm
Visibility
41 km
Temp.
18°
feels 15°
HourScoreWindGustCloudBaseRainVis.Temp.Conf.
WED 4 · 12:00254.7 m/s SE8.9 m/s
L
51
M
43
H
100
1050 m0%41 km18°●●●
WED 4 · 13:00604.8 m/s SE9.1 m/s
L
44
M
53
H
100
—0%41 km18°●●●
WED 4 · 14:00604.7 m/s SE9.0 m/s
L
37
M
58
H
100
—0%41 km18°●●●
WED 4 · 15:00604.5 m/s SE8.8 m/s
L
30
M
100
H
88
—0%41 km18°●●●
WED 4 · 16:00854.0 m/s SE8.5 m/s
L
5
M
66
H
8
—0%40 km18°●●●
WED 4 · 17:001003.2 m/s SE7.4 m/s
L
9
M
51
H
32
—0%39 km17°●●●
WED 4 · 18:001002.3 m/s SE5.7 m/s
L
0
M
34
H
8
—0%37 km16°●●●
THU 5 · 08:00751.7 m/s NE3.1 m/s
L
0
M
28
H
100
—3%36 km11°●●●
THU 5 · 09:001001.2 m/s E3.0 m/s
L
0
M
61
H
83
—3%38 km13°●●●
THU 5 · 10:001001.8 m/s E3.7 m/s
L
0
M
32
H
61
—0%40 km16°●●●
THU 5 · 11:00752.8 m/s E5.6 m/s
L
0
M
70
H
100
—0%41 km18°●●●
THU 5 · 12:00752.9 m/s E6.0 m/s
L
0
M
65
H
100
—0%42 km19°●●●
THU 5 · 13:00753.4 m/s SE6.5 m/s
L
0
M
35
H
100
—0%42 km19°●●●
THU 5 · 14:00753.9 m/s SE7.3 m/s
L
0
M
74
H
100
—0%41 km19°●●●
THU 5 · 15:001004.0 m/s SE7.7 m/s
L
0
M
66
H
34
—0%41 km19°●●●
THU 5 · 16:001003.6 m/s SE7.5 m/s
L
0
M
39
H
13
—0%41 km19°●●●
THU 5 · 17:00753.0 m/s SE6.6 m/s
L
0
M
60
H
100
—3%39 km17°●●●
THU 5 · 18:00752.7 m/s E5.5 m/s
L
0
M
84
H
80
—5%38 km16°●●●
FRI 6 · 08:0003.6 m/s E7.0 m/s
L
68
M
100
H
100
475 m0.5 mm29 km14°●●●
FRI 6 · 09:0004.3 m/s E7.8 m/s
L
82
M
100
H
100
550 m0.4 mm17 km15°●●●
FRI 6 · 10:0004.7 m/s E8.7 m/s
L
62
M
100
H
100
425 m1.4 mm28 km14°●●○
FRI 6 · 11:0005.0 m/s E9.3 m/s
L
65
M
100
H
100
450 m0.3 mm33 km15°●●●

Best jumpable windows · 7 days

2-hour windows with average score ≥ 60, ordered chronologically.

WED 4
17:00 → 19:00
Avg score: 100/100
THU 5
09:00 → 11:00
Avg score: 100/100
THU 5
15:00 → 17:00
Avg score: 100/100
SAT 7
09:00 → 11:00
Avg score: 100/100
SAT 7
12:00 → 14:00
Avg score: 100/100
Show daily summary · 7 days
WED 4
55
18° / 11°
W: 5 m/sG: 9 m/sR: 0.0 mm (5%)
Window: 17:00
THU 5
84
19° / 10°
W: 4 m/sG: 8 m/sR: 0.2 mm (18%)
Window: 09:00
FRI 6
0
16° / 13°
W: 6 m/sG: 11 m/sR: 10.9 mm (63%)
SAT 7
71
18° / 10°
W: 6 m/sG: 11 m/sR: 5.0 mm (24%)
Window: 09:00
SUN 8
89
18° / 9°
W: 2 m/sG: 4 m/sR: 0.0 mm (15%)
Window: 08:00
MON 9
0
18° / 10°
W: 6 m/sG: 11 m/sR: 0.0 mm (45%)
TUE 10
0
20° / 18°
W: 7 m/sG: 12 m/sR: 4.5 mm (55%)
⚠️ The forecast never replaces the jumpmaster's briefing. ICON-EU + AROME + ECMWF + GFS are high-resolution models, but on complex orography (Alps, Adriatic coast) they may miss reality by a factor. Always verify with the dropzone before driving over.
Legend · jumpability score
70+
Jumpable 70–100
Comfortable operating conditions, including for students and tandems.
40+
Borderline 40–69
On the edge — tight wind or cloud. Often no students; sport jumpers with caution.
0+
No-go 0–39
Extreme wind, gusts, storms, cloud below exit, or visibility below threshold.
The score combines surface wind, gusts, upper-level wind, cloud vs DZ exit altitude, CAPE (storms), rain in the next 2 hours and visibility. Operational thresholds, not meteorological. How the models work ↗
Data sources · weather
Data updated at: 11:22:30 on 04/11/2026

Forecasts are recomputed every 30 minutes. The Quota 4000 cron job pre-warms the cache every 3 hours. ICON-EU and AROME refresh every 6h, ECMWF every 12h, GFS every 6h.

Forecast from Open-Meteo (free aggregator of numerical weather prediction models). Models combined: ICON-EU (DWD), ECMWF IFS, AROME France HD (Météo-France), GFS (NOAA). Dropzone coordinates from Quota 4000 database, ENAC-certified schools. How the models work ↗

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