# Code table 4.203 - Cloud type
0 0 Clear
1 1 Cumulonimbus
2 2 Stratus
3 3 Stratocumulus
4 4 Cumulus
5 5 Altostratus
6 6 Nimbostratus
7 7 Altocumulus
8 8 Cirrostratus
9 9 Cirrocumulus
10 10 Cirrus
11 11 Cumulonimbus - ground-based fog beneath the lowest layer
12 12 Stratus - ground-based fog beneath the lowest layer
13 13 Stratocumulus - ground-based fog beneath the lowest layer
14 14 Cumulus - ground-based fog beneath the lowest layer
15 15 Altostratus - ground-based fog beneath the lowest layer
16 16 Nimbostratus - ground-based fog beneath the lowest layer
17 17 Altocumulus - ground-based fog beneath the lowest layer
18 18 Cirrostratus - ground-based fog beneath the lowest layer
19 19 Cirrocumulus - ground-based fog beneath the lowest layer
20 20 Cirrus - ground-based fog beneath the lowest layer
191 191 Unknown
255 255 Missing
