Weather report issued by The Marine Meteorological Center Split on 20.12.2020 at 12


Warning
A RISK OF FOG PATCHES, PARTICULARLY IN THE NORTH AND IN A PART OF THE CENTRAL ADRIATIC DURING THE NIGHT AND TOMORROW MORNING. A LITTLE CHANCE OF LIGHT ISOLATED THUNDERSTORMS IN THE FAR SOUTH OF THE ADRIATIC.
Synopsis
The field of high pressure lies over the Adriatic, while the low is shifting from northern Africa toward the Ionian Sea.
Weather forecast for the Adriatic for the first 12 hours
SE and E winds 4-14, in the far south of the Adriatic up to 18 knots, easing through the night, and turning in the open sea to NW. Sea 1-2, in the far south of the Adriatic increasing to 2-3. Visibility 10-20, in places around 4 km due to mist, or even to less than 1 km due to fog, particularly toward the Italian coast of the North Adriatic. Variably cloudy with a chance of light scattered rain, in the far south of the Adriatic of isolated rain showers with thunder toward the end of the day.
Weather forecast for the next 12 hours
Calm or light variable winds, in the open sea NW, and in the far south of the Adriatic at first still up to moderate SE winds. Sea calm or smooth, toward the Strait of Otranto up to moderate. Mist in places and a risk of fog patches, mainly in the North and in a part of the Central Adriatic. Variably cloudy with a chance of light scattered rain, in the far south of the Adriatic of isolated rain showers and thunder as well.
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