Weather report issued by The Marine Meteorological Center Split on 26.12.2020 at 12


Warning
Occasional gusts of NE wind 35-60, in the North Adriatic up to 70 and in the Velebit Channel up to 95 knots, decreasing tomorrow whereas in the far south occasional gusts of S and SW winds 35-40 knots. Sea locally 5. Isolated thunderstorms in the Central and South Adriatic.
Synopsis
A shallow field of low is stationary across the Adriatic whereas a ridge of high is temporarily intensifying from the northwest.
Weather forecast for the Adriatic for the first 12 hours
NE wind 18-28, locally up to 38, in the Velebit Channel up to 48 knots will be decreasing a bit whereas in the extreme south S and SW winds 14-28 knots. Sea 3-4, locally in the open 5. Visibility 10-20 km. Variably cloudy with scattered rain, rain showers and thunder and locally along the coast with a chance of light snow.
Weather forecast for the next 12 hours
Strong to near gale force NE wind, locally in the Velebit Channel of gale force, gradually decreasing and in the open sea turning to NW wind whereas only in the far south of the Adriatic moderate to near gale force SE wind. Sea slight to moderate, initially also rough in the open. Variably cloudy with scattered rain, rain showers and 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