|
Beaufort Wind Scale |
|
Beaufort Number
|
Wind Speed
|
|
|
Description |
|
|
Knots
|
MPH
|
Km/hr
|
|
|
0
|
<1
|
<1
|
<1
|
Calm |
|
1
|
1-3
|
1-3
|
1-3
|
Light Air |
|
2
|
4-6
|
4-7
|
6-11
|
Light Breeze |
|
3
|
7-10
|
8-12
|
12-19
|
Gentle Breeze |
|
4
|
11-16
|
13-18
|
20-28
|
Moderate Breeze |
|
5
|
17-21
|
19-24
|
29-38
|
Fresh Breeze |
|
6
|
22-27
|
25-31
|
39-49
|
Strong Breeze |
|
7
|
28-33
|
32-38
|
50-61
|
Near Gale |
|
8
|
34-40
|
39-46
|
62-74
|
Gale |
|
9
|
41-47
|
47-54
|
75-88
|
Strong Gale |
|
10
|
48-55
|
55-63
|
89-102
|
Storm |
|
11
|
56-63
|
64-72
|
103-117
|
Violent Storm |
|
12
|
64 +
|
73 +
|
118 +
|
Hurricane |
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