Definition
The ratio of wave height to wavelength. Theory gives a limiting steepness of about 1 in 7, beyond which the crest becomes unstable and the wave breaks. Steepness rises where waves run against a contrary current, where they shoal, or where a new wind sea is building quickly. Dangerous conditions for small craft correlate far better with steepness than with height alone, which is why wind against tide is so significant.
Want to apply this on the water?
Ask Saily out loud for an example, a scenario or a simpler explanation.
Talk to Saily