Notation	Name	Description	Status
0	0		stable
1	1 okta or less, but not zero		stable
2	2 oktas		stable
3	3 oktas		stable
4	4 oktas		stable
5	5 oktas		stable
6	6 oktas		stable
7	7 oktas or more, but not 8 oktas		stable
8	8 oktas		stable
9	Sky obscured by fog and/or other meteorological phenomena		stable
10	Sky partially obscured by fog and/or other meteorological phenomena		stable
11	Scattered		stable
12	Broken		stable
13	Few		stable
15	Cloud cover is indiscernible for reasons other than fog or other meteorological phenomena, or observation is not made		stable