Code/Flag Figure |
Description |
Status |
0
|
CIRRUS (CI)
|
|
1
|
CIRROCUMULUS (CC)
|
|
2
|
CIRROSTRATUS (CS)
|
|
3
|
ALTOCUMULUS (AC)
|
|
4
|
ALTOSTRATUS (AS)
|
|
5
|
NIMBOSTRATUS (NS)
|
|
6
|
STRATOCUMULUS (SC)
|
|
7
|
STRATUS (ST)
|
|
8
|
CUMULUS (CU)
|
|
9
|
CUMULONIMBUS (CB)
|
|
10
|
NO CH CLOUDS
|
|
11
|
CIRRUS FIBRATUS, SOMETIMES UNCINUS, NOT PROGRESSIVELY INVADING THE SKY
|
|
12
|
CIRRUS SPISSATUS, IN PATCHES OR ENTANGLED SHEAVES, WHICH USUALLY DO NOT INCREASE AND SOMETIMES SEEM TO BE THE REMAINS OF THE UPPER PART OF A CUMULONIM
|
|
13
|
CIRRUS SPISSATUS CUMULONIMBOGENITUS
|
|
14
|
CIRRUS UNCINUS OR FIBRATUS, OR BOTH, PROGRESSIVELY INVADING THE SKY; THEY GENERALLY THICKEN AS A WHOLE
|
|
15
|
CIRRUS (OFTEN IN BANDS) AND CIRROSTRATUS, OR CIRROSTRATUS ALONE, PROGRESSIVELY INVADING THE SKY; THEY GENERALLY THICKEN AS A WHOLE, BUT THE CONTINUOUS
|
|
16
|
CIRRUS (OFTEN IN BANDS) AND CIRROSTRATUS, OR CIRROSTRATUS ALONE, PROGRESSIVELY INVADING THE SKY; THEY GENERALLY THICKEN AS A WHOLE; THE CONTINUOUS VEI
|
|
17
|
CIRROSTRATUS COVERING THE WHOLE SKY
|
|
18
|
CIRROSTRATUS NOT PROGRESSIVELY INVADING THE SKY AND NOT ENTIRELY COVERING IT
|
|
19
|
CIRROCUMULUS ALONE, OR CIRROCUMULUS PREDOMINANT AMONG THE CH CLOUDS
|
|
20
|
NO CM CLOUDS
|
|
21
|
ALTOSTRATUS TRANSLUCIDUS
|
|
22
|
ALTOSTRATUS OPACUS OR NIMBOSTRATUS
|
|
23
|
ALTOCUMULUS TRANSLUCIDUS AT A SINGLE LEVEL
|
|
24
|
PATCHES (OFTEN LENTICULAR) OF ALTOCUMULUS TRANSLUCIDUS, CONTINUALLY CHANGING AND OCCURRING AT ONE OR MORE LEVELS
|
|
25
|
ALTOCUMULUS TRANSLUCIDUS IN BANDS, OR ONE OR MORE LAYERS OF ALTOCUMULUS TRANSLUCIDUS OR OPACUS, PROGRESSIVELY INVADING THE SKY; THESE ALTOCUMULUS CLOU
|
|
26
|
ALTOCUMULUS CUMULOGENITUS (OR CUMULONIMBOGENITUS)
|
|
27
|
ALTOCUMULUS TRANSLUCIDUS OR OPACUS IN TWO OR MORE LAYERS, OR ALTOCUMULUS OPACUS IN A SINGLE LAYER, NOT PROGRESSIVELY INVADING THE SKY, OR ALTOCUMULUS
|
|
28
|
ALTOCUMULUS CASTELLANUS OR FLOCCUS
|
|
29
|
ALTOCUMULUS OF A CHAOTIC SKY, GENERALLY AT SEVERAL LEVELS
|
|
30
|
NO CL CLOUDS
|
|
31
|
CUMULUS HUMILIS OR CUMULUS FRACTUS OTHER THAN OF BAD WEATHER,* OR BOTH
|
|
32
|
CUMULUS MEDIOCRIS OR CONGESTUS, TOWERING CUMULUS (TCU), WITH OR WITHOUT CUMULUS OF SPECIES FRACTUS OR HUMILIS OR STRATOCUMULUS, ALL HAVING THEIR BASES
|
|
33
|
CUMULONIMBUS CALVUS, WITH OR WITHOUT CUMULUS, STRATOCUMULUS OR STRATUS
|
|
34
|
STRATOCUMULUS CUMULOGENITUS
|
|
35
|
STRATOCUMULUS OTHER THAN STRATOCUMULUS CUMULOGENITUS
|
|
36
|
STRATUS NEBULOSUS OR STRATUS FRACTUS OTHER THAN OF BAD WEATHER,* OR BOTH
|
|
37
|
STRATUS FRACTUS OR CUMULUS FRACTUS OF BAD WEATHER,* OR BOTH (PANNUS), USUALLY BELOW ALTOSTRATUS OR NIMBOSTRATUS
|
|
38
|
CUMULUS AND STRATOCUMULUS OTHER THAN STRATOCUMULUS CUMULOGENITUS, WITH BASES AT DIFFERENT LEVELS
|
|
39
|
CUMULONIMBUS CAPILLATUS (OFTEN WITH AN ANVIL), WITH OR WITHOUT CUMULONIMBUS CALVUS, CUMULUS, STRATOCUMULUS, STRATUS OR PANNUS
|
|
40
|
CH
|
|
41
|
CM
|
|
42
|
CL
|
|
59
|
CLOUD NOT VISIBLE OWING TO DARKNESS, FOG, DUSTSTORM, SANDSTORM, OR OTHER ANALOGOUS PHENOMENA
|
|
60
|
CH CLOUDS INVISIBLE OWING TO DARKNESS, FOG, BLOWING DUST OR SAND, OR OTHER SIMILAR PHENOMENA, OR BECAUSE OF A CONTINUOUS LAYER OF LOWER CLOUDS
|
|
61
|
CM CLOUDS INVISIBLE OWING TO DARKNESS, FOG, BLOWING DUST OR SAND, OR OTHER SIMILAR PHENOMENA, OR BECAUSE OF CONTINUOUS LAYER OF LOWER CLOUDS
|
|
62
|
CL CLOUDS INVISIBLE OWING TO DARKNESS, FOG, BLOWING DUST OR SAND, OR OTHER SIMILAR PHENOMENA
|
|
63
|
MISSING VALUE
|
|