Seastates

CODE SEA CONDITION HEIGHT OF WAVES (m)
0 Calm, glossy 0
1 Calm, rippled 0 - 0.1
2 Smooth, wavelets 0.1 - 0.5
3 Slight 0.5 - 1.25
4 Moderate 1.25 - 2.5
5 Rough 2.5 - 4
6 Very rough 4 - 6
7 High 6 - 9
8 Very High 9 - 14
9 Phenomenal over 14