0 |
Isolated cumulus humilis and/or cumulus mediocris of vertical development
|
|
stable
|
1 |
Numerous cumulus humilis and/or cumulus mediocris of vertical development
|
|
stable
|
2 |
Isolated cumulus congestus of vertical development
|
|
stable
|
3 |
Numerous cumulus congestus of vertical development
|
|
stable
|
4 |
Isolated cumulonimbus of vertical development
|
|
stable
|
5 |
Numerous cumulonimbus of vertical development
|
|
stable
|
6 |
Isolated cumulus and cumulonimbus of vertical development
|
|
stable
|
7 |
Numerous cumulus and cumulonimbus of vertical development
|
|
stable
|
11 |
Isolated orographic clouds, pileus, incus, forming
|
|
stable
|
12 |
Isolated orographic clouds, pileus, incus, not changing
|
|
stable
|
13 |
Isolated orographic clouds, pileus, incus, dissolving
|
|
stable
|
14 |
Irregular banks of orographic cloud, föhn bank, etc., forming
|
|
stable
|
15 |
Irregular banks of orographic cloud, föhn bank, etc., not changing
|
|
stable
|
16 |
Irregular banks of orographic cloud, föhn bank, etc., dissolving
|
|
stable
|
17 |
Compact layer of orographic cloud, föhn bank, etc., forming
|
|
stable
|
18 |
Compact layer of orographic cloud, föhn bank, etc., not changing
|
|
stable
|
19 |
Compact layer of orographic cloud, föhn bank, etc., dissolving
|
|
stable
|
20 |
All mountains open, only small amounts of cloud present
|
|
stable
|
21 |
Mountains partly covered with detached clouds (not more than half the peaks can be seen)
|
|
stable
|
22 |
All mountain slopes covered, peaks and passes free
|
|
stable
|
23 |
Mountains open on observer’s side (only small amounts of cloud present), but a continuous wall of cloud on the other side
|
|
stable
|
24 |
Clouds low above the mountains, but all slopes and mountains open (only small amounts of cloud on the slopes)
|
|
stable
|
25 |
Clouds low above the mountains, peaks partly covered by precipitation trails or clouds
|
|
stable
|
26 |
All peaks covered but passes open, slopes either open or covered
|
|
stable
|
27 |
Mountains generally covered but some peaks free, slopes wholly or partially covered
|
|
stable
|
28 |
All peaks, passes and slopes covered
|
|
stable
|
29 |
Mountains cannot be seen owing to darkness, fog, snowstorm, precipitation, etc.
|
|
stable
|
35 |
Non-persistent condensation trails
|
|
stable
|
36 |
Persistent condensation trails covering less than 1/8 of the sky
|
|
stable
|
37 |
Persistent condensation trails covering 1/8 of the sky
|
|
stable
|
38 |
Persistent condensation trails covering 2/8 of the sky
|
|
stable
|
39 |
Persistent condensation trails covering 3/8 or more of the sky
|
|
stable
|
40 |
No cloud or mist observed from a higher level
|
|
stable
|
41 |
Mist, clear above observed from a higher level
|
|
stable
|
42 |
Fog patches observed from a higher level
|
|
stable
|
43 |
Layer of slight fog observed from a higher level
|
|
stable
|
44 |
Layer of thick fog observed from a higher level
|
|
stable
|
45 |
Some isolated clouds observed from a higher level
|
|
stable
|
46 |
Isolated clouds and fog below observed from a higher level
|
|
stable
|
47 |
Many isolated clouds observed from a higher level
|
|
stable
|
48 |
Sea of clouds observed from a higher level
|
|
stable
|
49 |
Bad visibility obscuring the downward view observed from a higher level
|
|
stable
|
511 |
Missing value
|
|
stable
|