— 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: 08:31:42 on 05/08/2026(updated just now)
Open-Meteo · best-match + 4-model ensemble confidence · recomputed every 30 min
Now · 09:00
0/100
No-go
OvercastStorm/rain
Wind
1.9 m/s
E
Gust
4.2 m/s
Low cloud
0%
—
Rain
0%
0.0 mm
Visibility
34 km
Temp.
28°
feels 32°
HourScoreWindGustCloudBaseRainVis.Temp.Conf.
WED 5 · 09:0001.9 m/s E4.2 m/s
L
0
M
29
H
100
—0%34 km28°●●●
WED 5 · 10:0002.6 m/s SE5.8 m/s
L
0
M
11
H
100
—0%38 km30°●●●
WED 5 · 11:0003.1 m/s S6.7 m/s
L
29
M
11
H
100
—0%33 km30°●●●
WED 5 · 12:0003.5 m/s S7.6 m/s
L
2
M
19
H
86
—0%38 km31°●●●
WED 5 · 13:0004.2 m/s S9.0 m/s
L
0
M
42
H
15
—0%40 km32°●●●
WED 5 · 14:0004.2 m/s S9.1 m/s
L
0
M
19
H
62
—0%41 km32°●●○
WED 5 · 15:0003.9 m/s SO9.1 m/s
L
17
M
75
H
73
—0%38 km32°●●●
WED 5 · 16:0003.5 m/s SO8.5 m/s
L
30
M
40
H
39
—0%38 km31°●●●
WED 5 · 17:0002.2 m/s SO7.5 m/s
L
26
M
69
H
66
—0%37 km31°●●●
WED 5 · 18:0001.2 m/s SO5.0 m/s
L
9
M
59
H
29
—0%39 km31°●●●
THU 6 · 08:001000.5 m/s N1.7 m/s
L
0
M
0
H
0
—0%27 km27°●●●
THU 6 · 09:001000.8 m/s O2.3 m/s
L
0
M
0
H
0
—0%35 km28°●●●
THU 6 · 10:0001.8 m/s SO4.2 m/s
L
0
M
0
H
0
—0%38 km30°●●●
THU 6 · 11:0002.3 m/s O5.1 m/s
L
2
M
0
H
0
—0%39 km31°●●●
THU 6 · 12:0002.8 m/s O6.1 m/s
L
1
M
0
H
0
—0%38 km31°●●●
THU 6 · 13:0003.5 m/s O7.5 m/s
L
11
M
0
H
0
—0%36 km32°●●○
THU 6 · 14:0004.5 m/s O9.2 m/s
L
5
M
0
H
0
—0%37 km32°●●●
THU 6 · 15:0004.9 m/s O9.9 m/s
L
19
M
0
H
0
—0%35 km31°●●●
THU 6 · 16:0004.6 m/s O10.0 m/s
L
9
M
0
H
0
—0%35 km31°●●●
THU 6 · 17:0004.2 m/s O9.4 m/s
L
12
M
0
H
0
—0%34 km31°●●●
THU 6 · 18:0003.7 m/s O8.6 m/s
L
15
M
0
H
0
—0%35 km30°●●●
FRI 7 · 08:0001.8 m/s NO4.1 m/s
L
0
M
0
H
0
—0%24 km28°●●●

Best jumpable windows · 7 days

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

THU 6
08:00 → 10:00
Avg score: 100/100
MON 10
16:00 → 18:00
Avg score: 65/100
TUE 11
08:00 → 10:00
Avg score: 100/100
Show daily summary · 7 days
WED 5
0
32° / 25°
W: 4 m/sG: 9 m/sR: 0.0 mm (0%)
THU 6
18
32° / 25°
W: 5 m/sG: 10 m/sR: 0.0 mm (0%)
Window: 08:00
FRI 7
0
31° / 27°
W: 5 m/sG: 10 m/sR: 0.0 mm (0%)
SAT 8
0
32° / 25°
W: 3 m/sG: 8 m/sR: 0.0 mm (0%)
SUN 9
9
32° / 25°
W: 4 m/sG: 9 m/sR: 0.0 mm (0%)
MON 10
12
33° / 26°
W: 6 m/sG: 11 m/sR: 0.0 mm (0%)
Window: 16:00
TUE 11
27
33° / 25°
W: 4 m/sG: 7 m/sR: 0.0 mm (0%)
Window: 08:00
⚠️ 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: 08:31:42 on 05/08/2026

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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