Weather report issued by The Marine Meteorological Center Split on 04.08.2020 at 12


Warning
ISOLATED THUNDERSTORMS. IN THE CENTRAL AND SOUTH ADRIATIC LOCAL GUSTS OF SE, IN THE NORTH AND IN A PART OF THE CENTRAL ADRIATIC IN THE EVENING AND DURING THE NIGHT OF NE WINDS, 35-45, IN THE VELEBIT CHANNEL UP TO 60 KNOTS. SEA LOCALLY IN THE OPEN OF THE NORTH ADRIATIC UP TO 5 DURING THE NIGHT.
Synopsis
The trough with cold front is slowly shifting across the Adriatic southeastwards.
Weather forecast for the Adriatic for the first 12 hours
THE NORTH ADRIATIC: SE and SW winds 5-15, in the evening and during the night turning to NE and strengthening to 12-24, in the Velebit Channel NE up to 32 knots. Sea 2-3, during the night 3-4, toward the open 4-5, mainly south of Istria. Visibility 10-20 km. Variably cloudy with scattered rain, isolated rain showers and thunder, in places even heavier. THE CENTRAL AND SOUTH ADRIATIC: SE winds 14-26 knots, easing during the night and turning in the northern part of the Central Adriatic to NW and NE, toward the open sea to SW winds, 10-20 knots. Sea 3-4. Visibility 10-20 km. Variably cloudy with scattered rain, isolated rain showers and thunder, in places even heavier.
Weather forecast for the next 12 hours
In the North and in a part of the Central Adriatic moderate to strong, in the Velebit Channel up to near gale force NE winds. In the South and in a part of the Central Adriatic light to fresh SE, toward the open SW winds. Sea smooth or slight, in the North, during the night locally in the rest of the Adriatic up to moderate, and in the open of the North Adriatic, south of Istria, possibly up to rough. Variably cloudy with scattered rain, isolated rain showers and thunder, in places even heavier.
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