Weather report issued by The Marine Meteorological Center Split on 11.05.2021 at 12


Warning
IN THE CENTRAL, DURING THE NIGHT IN THE SOUTH ADRIATIC AS WELL, A RISK OF GUSTS OF SE, IN PLACES OF S and SW WINDS, 35-40 KNOTS, EASING TOMORROW MORNING. ISOLATED THUNDERSTORMS, STARTING IN THE EVENING, FIRSTLY IN THE NORTH ADRIATIC.
Synopsis
A trough with frontal disturbance is approaching the Adriatic from the northwest.
Weather forecast for the Adriatic for the first 12 hours
SE winds 12-20, in the afternoon in the Central and overnight in the South Adriatic as well, in places up to 25 knots. Sea 2-3, towards the open possibly up to 4. Visibility 10-20 km. Mostly clear, but in the afternoon in the North, then in a part of the Central Adriatic, clouds increase, bringing rain, isolated rain showers and thunder in the North Adriatic late in the day, mainly in the open sea.
Weather forecast for the next 12 hours
Moderate to fresh, in the Central and South Adriatic overnight and in the morning still up to strong SE and SW winds, turning in the North, then in the Central Adriatic as well, to light to fresh N and NW, then to SW and W winds. Sea smooth or slight, towards the open possibly up to moderate. Fair or mainly cloudy with scattered rain, isolated rain showers and thunder.
PMC - Split

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