Swell period

Sindbad 1

Hi!

The swell periods on the table sections do not match the swell periods on the graphic maps.

I'm hoping someone can help me make sense of this please.

Thanks,

idefix37

The swell periods in the map graphics match quite well the swell periods in the table.

Sometime there is a very small difference because the decimal is rounded in the graphic e.g. 9.3 is rounded 9s.
Another example:
https://community.windy.com/topic/9874/waves-and-swell/2