Weather report issued by The Marine Meteorological Center Split on 30.12.2020 at 06


Warning
IN THE SOUTH AND IN A PART OF THE CENTRAL ADRIATIC LOCAL GUSTS OF SW and S WINDS 35-45, IN THE FAR SOUTH UP TO 50 KNOTS, GRADUALLY EASING TOWARD THE END OF THE DAY AND DURING THE NIGHT. IN THE SOUTH AND IN A PART OF THE CENTRAL ADRIATIC SEA LOCALLY UP TO 5 TODAY. TOMORROW TOWARD THE OPEN SEA A RISK OF BRIEF GUSTS OF NW WINDS AROUND 35 KNOTS. ISOLATED THUNDERSTORMS.
Synopsis
The low covering the Adriatic, centered over the Ligurian Sea, is slowly filling up and shifting eastwards.
Weather forecast for the Adriatic for the first 12 hours
In the South and in a part of the Central Adriatic S and SW winds 12-28, in the far south up to 34, easing toward the end of the day and during the night to 10-20, in the far south to 24 knots. In the North and in a part of the Central Adriatic SW winds 10-20, gradually easing and turning toward the end of the day and during the night to NW 4-12 knots. Sea 3-4, locally in the South and in a part of the Central Adriatic during the day 4-5, calming in the North and in a part of the Central Adriatic to 2-3. Visibility 10-20 km. Variably cloudy with scattered rain, isolated rain showers and thunder.
Weather forecast for the next 12 hours
In the South and in a part of the Central Adriatic light to fresh, in the far south at first still up to strong SW winds, turning from the middle of the night toward the morning to fresh, in the open sea briefly up to strong NW. In the North and in a part of the Central Adriatic light to moderate, toward the open sea from the middle of the night up to fresh, briefly up to strong NW winds. Sea smooth or slight, in the South and in a part of the Central Adriatic slight and moderate. 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