Weather report issued by The Marine Meteorological Center Split on 18.01.2020 at 12


Warning
IN THE NORTH ADRIATIC LATE IN THE DAY, THEN IN THE CENTRAL, GUSTS OF NE, IN THE OPEN SEA BRIEFLY OF NW, STRENGTHENING TO 35-50, IN THE VELEBIT CHANNEL UP TO 65 KNOTS. IN THE NORTH ADRIATIC TOMORROW MORNING SEA POSSIBLY 4-5. A RISK OF THUNDERSTORMS.
Synopsis
The shallow low will be shifting from the Ligurian Sea toward the Adriatic.
Weather forecast for the Adriatic for the first 12 hours
SE and E, in the extreme north of the Adriatic NE, 8-18 knots. In the North Adriatic late in the day, then gradually in the Central, NE, in the open sea briefly NW winds, strengthening to 12-22, in the Velebit Channel up to 28 knots. Sea increasing to 2-3, toward the end of the day and during the night in the North Adriatic 3-4. Visibility 10-20, in places reduced to around 4 km due to mist. Variably cloudy with scattered rain and with a risk of isolated rain showers with thunder, particularly late in the day and during the night.
Weather forecast for the next 12 hours
In the North and Central Adriatic moderate to strong, in the Velebit Channel up to gale force NE winds. In the South Adriatic moderate, in places up to fresh SE and E winds. Sea smooth or slight, in the North, then in the Central Adriatic slight and moderate, in the North Adriatic possibly up to rough in the morning.
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