| The following codes are used to denote forms of sea ice: | The following codes are used to denote forms of sea ice for fresh water ice: | ||
| Forms of Sea Ice | Code Figure | Forms of Sea Ice | Code Figure |
| New Ice (0 cm - 10 cm) | X | Fast Ice | 8 |
| Pancake Ice (30 cm - 3 m) | 0 | Belts and Strips symbol followed by the concentration of ice | ~F |
| Brash Ice (less than 2 m) | 1 | ||
| Ice Cake (3 m - 20 m) | 2 | ||
| Small Ice Floe (20 m - 100 m) | 3 | ||
| Medium Ice Floe (100 m - 500 m) | 4 | ||
| Big Ice Floe (500 m - 2 km) | 5 | ||
| Vast Ice Floe (2 km - 10 km) | 6 | ||
| Giant Ice Floe (greater than 10 km) | 7 | ||
| Fast Ice | 8 | ||
| Ice of Land Origin | 9 | ||
| Undetermined or Unknown (Iceberg, Growlers, Bergy Bits) (Used for Fa, Fb, Fc, only) |
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