| Code/Flag Figure |
Description |
Status |
|
0
|
Ship in open water with floating ice in sight
|
Operational
|
|
1
|
Ship in easily penetrable ice; conditions improving
|
Operational
|
|
2
|
Ship in easily penetrable ice; conditions not changing
|
Operational
|
|
3
|
Ship in easily penetrable ice; conditions worsening
|
Operational
|
|
4
|
Ship in ice difficult to penetrate; conditions improving
|
Operational
|
|
5
|
Ship in ice difficult to penetrate; conditions not changing
|
Operational
|
|
6
|
Ship in ice difficult to penetrate and conditions worsening. Ice forming and floes freezing together
|
Operational
|
|
7
|
Ship in ice difficult to penetrate and conditions worsening. Ice under slight pressure
|
Operational
|
|
8
|
Ship in ice difficult to penetrate and conditions worsening. Ice under moderate or severe pressure
|
Operational
|
|
9
|
Ship in ice difficult to penetrate and conditions worsening. Ship beset
|
Operational
|
|
10-29
|
Reserved
|
Operational
|
|
30
|
Unable to report, because of darkness or lack of visibility
|
Operational
|
|
31
|
Missing value
|
Operational
|