Notation	Name	Description	Status
0	No icing		stable
1	Light icing		stable
2	Light icing in cloud		stable
3	Light icing in precipitation		stable
4	Moderate icing		stable
5	Moderate icing in cloud		stable
6	Moderate icing in precipitation		stable
7	Severe icing		stable
8	Severe icing in cloud		stable
9	Severe icing in precipitation		stable
10	Trace of icing		stable
11	Trace of icing in cloud		stable
12	Trace of icing in precipitation		stable
15	Missing value		stable