Weather report issued by The Marine Meteorological Center Split on 27.12.2020 at 12


Warning
Local gusts of SE and NW winds 35-60, in the north of the Adriatic of NE 35-40 knots will be decreasing. Tomorrow gusts of SE wind increasing to 35-60 knots. Sea locally 5, midday tomorrow 6. Still today isolated thunderstorms in the South and in a part of the Central Adriatic.
Synopsis
The low situated across the Central Adriatic is expected to deepen, at night it will be filling up whereas tomorrow a deep trough with a cold front will be approaching from the northwest.
Weather forecast for the Adriatic for the first 12 hours
In the North and in a part of the Central Adriatic NE and NW winds 10-20, in the Velebit Channel up to 26 knots, decreasing to 6-16 knots. Elsewhere SE, locally in the open sea NW winds 18-36 knots, at night decreasing to 10-20 knots. Sea 3-4, in the open of the Central and South Adriatic 4-5. Visibility 10-20 km. Clearing up in the North and in a part of the Central Adriatic, elsewhere scattered rain, rain showers and thunder.
Weather forecast for the next 12 hours
There will be scattered rain, rain showers and thunder in the south of the Adriatic whereas elsewhere a new cloud increase, then scattered rain in the north of the Adriatic. SE wind intensifying to near gale and gale force and the sea moderate and rough, midday possibly also very rough.
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