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      phil.lay58 | Premium last edited by

      What is the difference between the three swell maps?

      idefix37 1 Reply Last reply Reply Quote 0
      • idefix37
        idefix37 Sailor Moderator @phil.lay58 last edited by idefix37

        @phil-lay58
        The seastate that you can observe in a given place, is a mix of different type of waves:

        • The windsea (also called wind waves) is produced by the local wind.

        • The main swell is produced by a strong wind in a remote place. The swell travels great distances to where you observe it.

        • Secondary swells are produced also by winds in other remote places.

        All of them have different heights, come from different directions and show different periods (i.e. the time between 2 wave crests)
        Swell 1 is the main swell,
        Swell 2 and 3 are secondary swells
        The swell classification 1, 2, 3 depends on their respective heights

        You find this detail on Windy by pressing the amber arrow on the picker.

        0_1532934126091_DBC5AD64-3187-49E1-AEFD-61CCB6A45E59.jpeg

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