web
counter
Chapter 16
red ensign waving
site search by freefind

 

 

BKYC very small BKYC very small
The Beaufort Scale

Force

Wind Speed

Description

Sea State

 

Knots

m/sec

 

 

0

0 - 1

0.0 - 0.2

Calm

Like a mirror

1

1 - 3

0.3 - 1.5

Light Air

Ripples only

2

4 - 6

1.6 - 3.3

Light Breeze

Small wavelets, not breaking

3

7 - 10

3.4 - 5.4

Gentle Breeze

Large wavelets, crests breaking,  white horse

4

11 - 16

5.5 - 7.9

Moderate Breeze

Small waves with frequent white horses

5

17 - 21

8.0 - 10.7

Fresh Breeze

Moderate waves, many white horses, some spray

6

22 - 27

10.8 - 13.8

Strong Breeze

Large waves with white crests, some spray

7

28 - 33

13.9 - 17.1

Near Gale

Sea heaping up, foam streaks blowing from crests

8

34 - 40

17.2 - 20.7

Gale

High waves with crests breaking into spindrift

9

41 - 47

20.8 - 24.4

Severe Gale

High waves with tumbling crests, streaks of foam

10

48 - 55

24.5 - 28.4

Storm

Very high waves with long overhanging crests

11

56 - 63

28.5 - 32.6

Violent Storm

Exceptionally high waves, sea covered with foam

12

64 Plus

32.7 & Over

Hurricane

Air filled with foam, sea white with driving spray

NOTE:  It will be observed that there is a steady approximate ratio of 2 : 1 between metres per second and knots for each wind force in the Beaufort scale. In Danish and Swedish weather forecasts wind strength is given in metres per second, not in the Beaufort Scale.

TOP

Home | Contact Us | About Us | Club Bitts | Weather in Kiel | Whats On | Charter Bookings | Training | Seamanship | Chapter 1 | Chapter 2 | Chapter 3 | Chapter 4 | Chapter 5 | Chapter 6 | Chapter 7 | Chapter 8 | Chapter 9 | Chapter 10 | Chapter 11 | Chapter 12 | Chapter 13 | Chapter 14 | Chapter 15 | Chapter 16 | Chapter 17 | Chapter 18 | Chapter 19 | Chapter 20 | Chapter 21 | Chapter 22 | Chapter 23 | Chapter 24 | Chapter 25 | Chapter 26 | Chapter 27 | Chapter 28 | Chapter 29 | Chapter 30 | Chapter 31 | Chapter 32 | Chapter 33 | Chapter 34 | Kiel 1243-1945 | BKYC 1945-1992 | Photo Abums I | Photo Albums II | Photo Albums III | Accommodation | Guestbook | Downloads | Links |