Weather report issued by The Marine Meteorological Center Split on 28.12.2020 at 06


Warning
LOCAL GUSTS OF SE, IN THE SOUTH ADRIATIC OF S WINDS AS WELL, STRENGTHENING DURING THE DAY TO 40-70 KNOTS, AND EASING IN THE SECOND PART OF THE NIGHT. SEA LOCALLY UP TO 5, IN THE SECOND PART OF THE DAY UP TO 6, BUT CALMING IN THE SECOND PART OF THE NIGHT. ISOLATED THUNDERSTORMS.
Synopsis
The deep trough with frontal system is approaching the Adriatic from the northwest.
Weather forecast for the Adriatic for the first 12 hours
SE, in the South Adriatic S winds as well, strengthening to 20-40, in places in the afternoon up to 45 knots, turning in the North and in a part of the Central Adriatic late in the day to SW and easing a little. Sea 3-4, increasing to 4-5, locally in the second part of the day up to 6. Visibility 10-20 km. Variably cloudy with scattered rain, isolated rain showers and thunder.
Weather forecast for the next 12 hours
In the North and in a part of the Central Adriatic fresh and near gale force, in places up to gale force SW winds, easing in the second part of the night. In the South and in a part of the Central Adriatic strong and gale force SE and S winds, gradually turning to SW and easing a little. Sea moderate and rough, locally up to very rough, gradually calming through the night, firstly in the North Adriatic. Variably 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