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13. Altostratus translucidus.
M1
M 2
M3
M 4
M5
M6
16. Altocumulus lenticularis.
14. Altostratus opacus.
17. Altocumulus translucidus undulatus.
15. Altocumulus translucidus.
18. Altocumulus cumulogenitus
Figure AIV-4.—Examples of the 9 mid-level sky states reported for code CM, based on WMO Code table 0515.
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