Weather report issued by The Marine Meteorological Center Split on 26.12.2020 at 06


Warning
In the North and in a part of the Central Adriatic, then gradually in the rest of the Adriatic occasional gusts of NE wind increasing to 35-70, at the foot of Velebit up to 95 knots whereas in the far south of the Adriatic gusts of SE and SW winds 35-40 knots. Sea locally 5. Isolated thunderstorms.
Synopsis
A shallow field of low is stationary across the Adriatic and is slowly filling up whereas a ridge of high is temporarily intensifying from the north-west.
Weather forecast for the Adriatic for the first 12 hours
NE wind increasing to 18-28, locally up to 34, at the foot of Velebit up to 48 knots and then spreading also to the South Adriatic except in the extreme south where SE and SW winds 14-28 knots will remain. Sea intensifying to 3-4, in the North and in a part of the Central Adriatic 4-5. Visibility 10-20 km. Variably cloudy with scattered rain and rain showers with thunder and locally along the coast with a chance of light snow.
Weather forecast for the next 12 hours
Strong to gale force NE wind, at the foot of Velebit occasionally of storm force, in the second part of the night slowly decreasing whereas in the far south of the Adriatic strong to near gale force SE wind. Sea slight and moderate, locally towards the open also rough. Variably cloudy with scattered rain and rain showers with thunder and locally along the coast with a chance of light snow.
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