Weather report issued by The Marine Meteorological Center Department Split on 20.09.2026 at 12
Warning
Tomorrow during the morning at foot of Velebit gusts of NE wind 35-50 knots. In the South, in the afternoon in the Central and North Adriatic risk of isolated thunderstorms.
Synopsis
A ridge of high is intensifying across the Adriatic from the west, whereas a trough with the frontal disturbance is shifting northwards.
Weather forecast for the Adriatic for the first 12 hours
NW wind, at night along the coast NE 6-16 knots. Still initially at foot of Velebit NE wind 6-16 knots. The sea 2-3. Visibility 10-20 km. Mostly clear skies, with incr4eased cloudiness there is possibility of rain or some rain showers with thunder, mainly during the afternoon along the coast.
Weather forecast for the next 12 hours
Light to moderate NW wind, along the coast NE, in the North Adriatic during the morning increasing to moderate and fresh, briefly strong. The sea smooth to slight, towards the midday in the North Adriatic moderate. Mostly clear skies, in the South Adriatic scattered rain or rain showers with thunder.
Douglas scale
| State of the sea | Description | Waves average height (m) |
|---|---|---|
| 0 | calm (glassy) | 0 |
| 1 | calm (rippled) | 0 - 0.1 |
| 2 | smooth | 0.1 - 0.5 |
| 3 | slight | 0.5 - 1.2 |
| 4 | moderate | 1.25 - 2.5 |
| 5 | rough | 2.5 - 4 |
| 6 | very rough | 4 - 6 |
| 7 | high | 6 - 9 |
| 8 | very high | 9 - 14 |
| 9 | phenomenal | > 14 |
Beaufort scale
| Wind speed | Waves height | ||||||
|---|---|---|---|---|---|---|---|
| km/h | m/s | kt | mph | m | ft | ||
| 0 Bf | calm | < 1 | 0 - 0.2 | < 1 | < 1 | - | - |
| 1 Bf | light air | 1 - 5 | 0.3 - 1.5 | 1 - 3 | 1-3 | 0.1 (0.1) | 0.25 (0.25) |
| 2 Bf | light breeze | 6 - 11 | 1.6 - 3.3 | 4 - 6 | 4 - 7 | 0.2 (0.3) | 0.5 (1) |
| 3 Bf | gentle breeze | 12 - 19 | 3.4 - 5.4 | 7 - 10 | 8 - 12 | 0.6 (1) | 2 (3) |
| 4 Bf | moderate breeze | 20 - 28 | 5.5 - 7.9 | 11 - 16 | 13 - 18 | 1 (1.5) | 3.5 (5) |
| 5 Bf | fresh breeze | 29 - 38 | 8.0 - 10.7 | 17 - 21 | 19 - 24 | 2 (2.5) | 6 (8.5) |
| 6 Bf | strong breeze | 39 - 49 | 10.8 - 13.8 | 22 - 27 | 25 - 31 | 3 (4) | 9.5 (13) |
| 7 Bf | near gale | 50 - 61 | 13.9 - 17.1 | 28 - 33 | 32 - 38 | 4 (5.5) | 13.5 (19) |
| 8 Bf | gale | 62 - 74 | 17.2 - 20.7 | 34 - 40 | 39 - 46 | 5.5 (7.5) | 18 (25) |
| 9 Bf | strong gale | 75 - 88 | 20.8 - 24.4 | 41 - 47 | 47 - 54 | 7 (10) | 23 (32) |
| 10 Bf | storm | 89 - 102 | 24.5 - 28.4 | 48 - 55 | 55 - 63 | 9 (12.5) | 29 (41) |
| 11 Bf | violent storm | 103 - 117 | 28.5 - 32.6 | 56 - 63 | 64 - 72 | 11.5 (16) | 37 (52) |
| 12 Bf | hurricane | >= 118 | >= 32.7 | >= 64 | >= 73 | 14 (-) | 45 (-) |
Adriatic sub-basins
