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    Attention waves in North Atlantik wrong!!

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    • E
      eduardheindl last edited by

      The massive wave West of Irland and Schottland about 14m (Feb. 10 2020) are shown with 0 or 1 meter , we hope no sailer uses this map.

      idefix37 1 Reply Last reply Reply Quote 0
      • idefix37
        idefix37 Sailor Moderator @eduardheindl last edited by idefix37

        @eduardheindl

        How did you get that?
        On Waves layer I see 12.3 m for WAM model and 13.8m for WW3.
        Nothing is wrong !
        Or did you use the Swell layer?

        938F7EAB-B4F4-4A7F-8331-1F039EC3D05E.jpeg
        (Wave layer with customised colours)

        Gkikas LGPZ E 2 Replies Last reply Reply Quote 2
        • Gkikas LGPZ
          Gkikas LGPZ Moderator @idefix37 last edited by

          Official sea wave height forecast from NOAA confirms max. 13 m.
          c7173ab2-5575-4c97-bc8d-b9883ec6eb58-εικόνα.png

          Gkikas LGPZ 1 Reply Last reply Reply Quote 0
          • Gkikas LGPZ
            Gkikas LGPZ Moderator @Gkikas LGPZ last edited by

            Winds 45~50 kts
            cd091b0e-257d-4d26-983a-28a6d6820a3e-εικόνα.png

            1 Reply Last reply Reply Quote 2
            • E
              eduardheindl @idefix37 last edited by

              @idefix37 I used https://www.windy.com/-Swell-swell1?swell1,45.629,-13.799,5
              And still see some areas with 0 waves.

              idefix37 1 Reply Last reply Reply Quote 0
              • Korina
                Korina Administrator last edited by

                @eduardheindl
                Hello, as @idefix37 and @Gkikas-LGPZ mentioned, there is a difference between swell and waves layer.
                You can read the exact explanation of swell layer here - Description of layers

                Korina

                1 Reply Last reply Reply Quote 0
                • idefix37
                  idefix37 Sailor Moderator @eduardheindl last edited by idefix37

                  @eduardheindl
                  Before posting « Attention waves in North Atlantic is wrong » you should try to understand the difference between Waves, Swells and Wind waves !
                  If you are sailing in North Atlantic you will observe waves. Their significant height and period correspond to what is called the sea state or the total sea. On Windy this is shown by Waves layer.
                  Why Swell was almost forecast near 0m? It’s because swell is a wave system generated by a DISTANT wind. In the case of this storm in North Atlantic the waves were only due to the strong LOCAL wind, NOT to a strong distant wind. You can check it by the Wind waves layer which shows the waves generated by the local wind you observe.
                  Even if it’s not absolutely exact, you may consider that
                  Waves (sea state) = Wind waves + Swell
                  So you may have
                  14m Waves = 13m Wind waves + 1m Swell
                  Sailors can use with confidence the Windy maps which are based on 2 of the most reliable global wave models.

                  E 1 Reply Last reply Reply Quote 5
                  • E
                    eduardheindl @idefix37 last edited by

                    @idefix37 thanks for clearing my question!

                    1 Reply Last reply Reply Quote 0
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