Code figure km m
00 <0.1 <100
01 0.1 100
02 0.2 200
03 0.3 300
04 0.4 400
05 0.5 500
06 0.6 600
07 0.7 700
08 0.8 800
09 0.9 900
10 1.0 1000
11 1.1 1100
12 1.2 1200
13 1.3 1300
14 1.4 1400
15 1.5 1500
16 1.6 1600
17 1.7 1700
18 1.8 1800
19 1.9 1900
20 2.0 2000
21 2.1 2100
22 2.2 2200
23 2.3 2300
24 2.4 2400
25 2.5 2500
26 2.6 2600
27 2.7 2700
28 2.8 2800
29 2.9 2900
30 3.0 3000
31 3.1 3100
32 3.2 3200
33 3.3 3300
34 3.4 3400
35 3.5 3500
36 3.6 3600
37 3.7 3700
38 3.8 3800
39 3.9 3900
40 4.0 4000
41 4.1 4100
42 4.2 4200
43 4.3 4300
44 4.4 4400
45 4.5 4500
46 4.6 4600
47 4.7 4700
48 4.8 4800
49 4.9 4900
50 5.0 5000
51 not used  
52 not used  
53 not used  
54 not used  
55 not used  
56 6 6000
57 7 7000
58 8 8000
59 9 9000
60 10 10000
61 11 11000
62 12 12000
63 13 13000
64 14 14000
65 15 15000
66 16 16000
67 17 17000
68 18 18000
69 19 19000
70 20 20000
71 21 21000
72 22 22000
73 23 23000
74 24 24000
75 25 25000
76 26 26000
77 27 27000
78 28 28000
79 29 29000
80 30 30000
81 35 35000
82 40 40000
83 45 45000
84 50 50000
85 55 55000
86 60 60000
87 65 65000
88 70 70000
89 >70 >70000
90 <0.05 <50
91 0.05 50
92 0.2 200
93 0.5 500
94 1 1000
95 2 2000
96 4 4000
97 10 10000
98 20 20000
99 >=50 >=50000

Notes:
(1) If the visibility is between two of the distances given in the table, the code figure for the lower distance is reported e.g. a visibility of 470 m is reported as 04
(2) When VV=00 the actual visibility is reported by the extra group 1V'f'/V'f'f' in Section 5

Overview | The code itself | Present weather ( WW) | Cloud type codes ( Cl, Cm, Ch)

Weather Observations | General Cloud Classification System | Picture Gallery | Site Map | Weather Links
Copyright note | Contact | Miscellaneous | My Astronomy Site on the Web