I think you're not understanding me, or I'm not understanding you...unless for some specific reason you want to know a wave elevation timeseries (which given th

I think you're not understanding me, or I'm not understanding you...unless for some specific reason you want to know a wave elevation timeseries (which given the question "how do I describe the current sea conditons" you probably don't; also, noting that significant wave height is not the same as wave elevation), the statistical parameters which are derived from the timeseries data are more useful. These of course can be given on a rolling basis.