Nautica Digitale Olympic - Sochi 2014
  Sponsor: BARTOLOMEO LA CAVA COMBUSTIBILI SRL 

The first scale to estimate wind force with general description in english, italian, french and spanish

NOTE
The waves probable height shows the expectable conditions of the open sea, very far from the coasts. It should never be used in opposite sense to estimate or signal the sea state. Please remember that in internal seas and near the coasts with land winds, the waves will be lower

HISTORY
The scale takes its name from admiral Francis Beaufort (1774-1857), hydrographer of the Royal Navy, who in 1805 proposed a method to classify the wind force into 13 degrees. In 1831 the scale was first used on the Beagle in the celebrated voyage and in 1838 it was officially adopted by British Admiralty and later by all other countries

DOUGLAS SCALE

WAVE CLIMATE

PILOT CHARTS

TIDE PREDICTION

NOTICE TO MARINERS

METEOMED™

REPORT REPORT

METEOMAR METEOMAR

FORECASTS FORECASTS

CHARTS CHARTS

CLIMATE CLIMATE

OBSERVATIONS OBSERVATIONS

WEBCAM WEBCAM



BEAUFORT SCALE

WIND FORCE AND
GENERAL DESCRIPTION
WIND SPEED WIND EFFECTS ON THE SEA WAVES PROBABLE HEIGHT IN METERS



m/sec

knots

(open sea)

average

max
0 Calm
Calma
Calme
Calma
0 - 0,2 up to 1 Sea like a mirror - -
1 Light air
Bava di vento
Très légère brise
Ventolina
0,3 - 1,5 1 - 3 Ripples without foam crests 0,1 0,1
2 Light breeze
Brezza leggera
Légére brise
Flojito, Brisa muy débil
1,6 - 3,3 4 - 6 Small wavelets. Crests have a glassy appearance and do not break 0,2 0,3
3 Gentle breeze
Brezza tesa
Petit brise
Flojo, Brisa débil
3,4 - 5,4 7 - 10 Large wavelets and crests begin to break. Possible scattered white horses 0,6 1,0
4 Moderate breeze
Vento moderato
Jolie brise
Bonancible, Brisa moderada
5,5 - 7,9 11 - 16 Small waves with fairly frequent white horses 1,0 1,5
5 Fresh breeze
Vento teso
Bonne brise
Fresquito, Brisa fresca
8,0 - 10,7 17 - 21 Moderate waves with many white horses 2,0 2,5
6 Strong breeze
Vento fresco
Vent frais
Fresco, Brisa fuerte
10,8 - 13,8 22 - 27 Large waves white foam crests. Probably some spray 3,0 4,0
7 Near gale
Vento forte
Grand frais
Frescachó, Viento fuerte
13,9 - 17,1 28 - 33 Mounting sea with foam blown in streaks downwind 4,0 5,5
8 Gale
Burrasca
Coup de vent
Viento duro
17,2 - 20,7 34 - 40 Moderately high waves with crests beginning to break into spindrift 5,5 7,5
9 Strong gale
Burrasca forte
Fort coup de vent
Viento muy duro
20,8 - 24,4 41 - 47 High waves with dense foam along the direction of the wind. Crests begin to roll over and spray may affect visibility 7,0 10,0
10 Storm
Tempesta
Tempête
Temporal
24,5 - 28,4 48 - 55 Very high waves with long overhanging crests. Heavy sea roll and the surface is generally white. Visibility affected 9,0 12,5
11 Violent storm
Tempesta violenta
Violent tempête
Temporal duro, Borrasca
28,5 - 32,6 56 - 63 Exceptionally high waves. The sea is completely covered with foam patches lying downwind. Visibility poor 11,5 16,0
12 Hurricane
Uragano
Ouragan
Huracán
over 32,7 over 64 Huge waves. The air is filled with foam and spray. Sea completely white. Visibility bad 14,0 -