At what point would you say no to sibbing
WMO Sea State Code Wave Height (meters) Characteristics
0 Calm (glassy)
0 to 0.1m Calm (rippled)
0.1 to 0.5m Smooth (wavelets)
0.5 to 1.25m Slight
1.25 to 2.5m Moderate
2.5 to 4m Rough
4 to 6m Very rough
6 to 9m High
9 to 14m Very high
Over 14m Phenomenal
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