Weather report issued by The Marine Meteorological Center Split on 19.11.2020 at 12


Warning
From the middle of the night local gusts of NE wind 35-60 knots in the North, then in the Central Adriatic, up to 90 knots in the Velebit Channel. Tomorrow the sea 5 locally in the North and in a part of the Central Adriatic. Still initially and in the first part of the night a risk of fog in the North Adriatic. At night and in the morning a risk of light isolated thunderstorms, mostly in the open sea.
Synopsis
A trough with a cold front is approaching the Adriatic from the northwest.
Weather forecast for the Adriatic for the first 12 hours
Variable winds 4-12 knots. Sea 1-2, in the South Adriatic 2-3. Visibility 10-20 km, in places reduced to less than 4 km due to mist whereas still initially and again in the evening in the open sea towards the Italian coast possibly reduced to less than 1 km due to fog. Mostly clear, in places with moderate cloudiness and in the open sea with a chance of light rain.
Weather forecast for the next 12 hours
In the North, then gradually also in the Central Adriatic NE wind increasing fast to strong and of near gale force, in places also of gale force and at the foot of Velebit of strong gale force and the sea slight and moderate, in places also rough. Cloud increase and a chance of light rain and thunder, mostly in the open sea. Possible mist and still initially also fog in the open sea of the North Adriatic.
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