| Code/Flag Figure |
Description |
Status |
|
0
|
Drift snow ended before the hour of observation
|
Operational
|
|
1
|
Intensity diminishing
|
Operational
|
|
2
|
No change
|
Operational
|
|
3
|
Intensity increasing
|
Operational
|
|
4
|
Continues, apart from interruption lasting less than 30 minutes
|
Operational
|
|
5
|
General drift snow has become drift snow near the ground
|
Operational
|
|
6
|
Drift snow near the ground has become general drift snow
|
Operational
|
|
7
|
Drift snow has started again after an interruption of more than 30 minutes
|
Operational
|
|
8-14
|
Reserved
|
Operational
|
|
15
|
Missing value
|
Operational
|