Weather report issued by The Marine Meteorological Center Split on 21.03.2020 at 12


Warning
IN THE NORTH AND IN A PART OF THE CENTRAL ADRIATIC DURING THE NIGHT LOCAL GUSTS OF NE WINDS 35-55, IN THE VELEBIT CHANNEL UP TO 75, AND TOMORROW DURING THE FORENOON IN THE REST OF THE CENTRAL ADRIATIC UP TO 45 KNOTS. SEA LOCALLY IN THE OPEN OF THE NORTH ADRIATIC TOMORROW MORNING UP TO 5.
Synopsis
The field of high pressure over the Adriatic is weakening and the cold front is approaching from the north.
Weather forecast for the Adriatic for the first 12 hours
SE and E winds 6-16, turning gradually in the North and in a part of the Central Adriatic in the evening and during the night to NE and strengthening rapidly to 16-30, in the Velebit Channel up to 40 knots. Sea 2-3, in the North and Central Adriatic during the night 3-4. Visibility 10-20 km. Fine or fair, but cloud will continue to increase during the night, bringing a chance of a little rain in places of the North Adriatic.
Weather forecast for the next 12 hours
Moderate to near gale force, in the Velebit Channel up to gale force NE winds In the South Adriatic mainly moderate NW and NE winds. Sea slight and moderate, in the open of the North Adriatic up to rough. Fair or mainly cloudy with a chance of a little rain only in 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