Can I suggest including the swell period in the Waves alert?
The parameters to set for an upcoming swell should be swell size, swell direction & swell period. Swell size and period and similarly important when trying to discern how a swell will impact a coastline.
For example, a 2m swell @ 7sec hitting the surfcoast of Victoria, Australia will be junk, whereas a 2m swell at 16sec will be great. And if we look at the goldcoast a 2m @ 7sec swell will be excellent.
The period is important and should be included to filter out the wheat from the chaff.