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    What source of weather data Windy use?

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    • idefix37
      idefix37 Sailor Moderator @howardkuo last edited by

      @howardkuo
      The default model of Windy is the model from ECMWF. It is not possible to set another model as default.

      1 Reply Last reply Reply Quote 0
      • F
        foobarjo @dzuremar last edited by

        @dzuremar said in What source of weather data Windy use?:

        @idefix37 Hello ! We use AROME with resolution 0.01° (1.3km). Both of the AROME resolutions have 00, 06, 12 and 18 ref time runs. There are also 03, 09, 15 and 21 ref time runs which we don't process. Advantage of AROME 0.025° (2.5km) is that it includes pressure-level layers. AROME 0.01° provides only surface-level layers, only wind and relative humidity are additionally in 20m, 50m and 100m altitude. However, AROME 0.025° also covers much smaller area - a square that covers whole France and a bit of surrounding area.

        It seems that the AROME 0.025 now cover the same area as AROME 0.01. Is there any chance that Windy switch, or add AROME 0.025 to the supported models? The area of new icon D2 is quiet small either. The french paragliding community badly needs the pressure layers on the AROME model

        1 Reply Last reply Reply Quote 0
        • Arda Gulcil
          Arda Gulcil last edited by

          Hello, my first message/question in the community hope no problem to ask such question. Which model you suggest to use in sailing in Turkish Aegean and Mediterranean coasts ? Thanks
          Arda

          Korina idefix37 2 Replies Last reply Reply Quote 0
          • Korina
            Korina Administrator @Arda Gulcil last edited by

            @arda-gulcil Hello, I recommend trying all the available models to find the best one for the location.

            Korina

            1 Reply Last reply Reply Quote 1
            • idefix37
              idefix37 Sailor Moderator @Arda Gulcil last edited by idefix37

              @arda-gulcil
              Hi,
              I would not recommend only one model.
              You know there are models providing long-range forecast (up to 10 days) and some short-range forecast (up to 2 days). The first ones have a lower resolution (about 10km or more), the second ones have a higher resolution (about 4km) in your area.
              So the first ones are useful to know the weather in the next 5 or 7 days.
              In this category I would recommend the ECMWF model, for instance to know if the Meltem wind is predicted to be strong next week.
              For medium-range forecast try ICON EU
              And for the shorter-range forecast it is better to use NEMS as this Mediterranean area shows a large quantity of mountainous coasts and islands. So you need a high resolution model to get more precision about wind force and direction. Local winds are highly influenced by mountains in the Aegean Sea.

              Examples today at same hour
              (shown with customized colours for wind):

              ECMWF 9km resolution - 10-days range.
              The Meltem strength is shown to be fairly even.

              1BE425B3-B50E-4739-86C4-36AAB2513D23.jpeg

              ICON 7km resolution - 5-days range
              The wind is shown stronger between islands and weaker on leeward coasts.

              716C9E89-D08F-42F7-B730-C95EFAFC2D81.jpeg

              NEMS 4km resolution - 2.5-days range
              The wind is shown even more accurately around islands and capes.

              FDAE1F5B-6A50-4BFC-9BC6-6B4598F8D336.jpeg

              My colour scale for wind is
              Blueish green : 4 Beaufort
              Bright green : 5 Beaufort
              Orange : 6 Beaufort

              Arda Gulcil 1 Reply Last reply Reply Quote 3
              • Arda Gulcil
                Arda Gulcil @idefix37 last edited by

                @idefix37 thank you very much ,crystal clear.

                1 Reply Last reply Reply Quote 0
                • rkeel61
                  rkeel61 @TomSlavkovsky | Premium last edited by

                  @TomSlavkovsky why don't you go through the help settings and figure it out.
                  Why do people say the dumbest thing.
                  They've got four models they use.
                  Mind boggles me what's wrong with people

                  rkeel

                  Korina 1 Reply Last reply Reply Quote 0
                  • Korina
                    Korina Administrator @rkeel61 last edited by

                    @rkeel61 What are you referring to please?

                    Korina

                    1 Reply Last reply Reply Quote 0
                    • john marshal
                      john marshal last edited by john marshal

                      Hello, I was attempting to utilize your application here in Norway for snowkiting, and water currently in spring/summer. Anyway information utilized in Windyty is exceptionally erroneous for here, all accounts 90% exact.

                      Korina 1 Reply Last reply Reply Quote 0
                      • Korina
                        Korina Administrator @john marshal last edited by

                        @john-marshal Hello, what weather model and layer were you using, please?

                        Korina

                        1 Reply Last reply Reply Quote 0
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