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    Wind discrepancies between single model and Wind comparison

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    • SutyS Offline
      Suty Windy Staff @Ftjwinfs
      last edited by

      @Ftjwinfs Hello, we will take a look and hopefully fix this in the next update planned in upcoming days/weeks.

      rdo118R F 2 Replies Last reply Reply Quote 0
      • rdo118R Offline
        rdo118 @Suty | Premium
        last edited by

        Strangely, it looks fine now, for me.

        Threlfa7T 1 Reply Last reply Reply Quote 0
        • Threlfa7T Offline
          Threlfa7 @rdo118 | Premium
          last edited by

          @rdo118 @suty This issue seems to vary for model run to model run. When the 12Z EC run dropped in it seemed to be OK but when the 06Z run comes in it seems to cause issues. So we look forward to the next update. Thank you Windy team!

          rdo118R 1 Reply Last reply Reply Quote 0
          • rdo118R Offline
            rdo118 @Threlfa7 | Premium
            last edited by

            @Threlfa7 Yes, I see something like that as well. It feels like the wind arrows show the correct values and directions, but the model data in the table below is shifted along the timeline.

            1 Reply Last reply Reply Quote 0
            • F Offline
              Ftjwinfs @Suty | Premium
              last edited by

              @Suty Please fasttrack this. To be clear: This is no small "flaw" but a major bug.

              I'm on a sailing trip at the moment. These inconsistencies make Windy unusable at the moment.

              So, please re-prioritize and fix this as soon as possible.

              SutyS 1 Reply Last reply Reply Quote 0
              • SutyS Offline
                Suty Windy Staff @Ftjwinfs
                last edited by

                @Ftjwinfs Yes, I am aware of this but we are still looking for the cause of this whole trouble on our end.

                Right now, we have a new version with smaller features and bug fixes in the testing process, so we will do our best to fix this into this new version.

                F 1 Reply Last reply Reply Quote 1
                • F Offline
                  Ftjwinfs @Suty | Premium
                  last edited by

                  @Suty It "seems" (I'm not sure), that the issue appears somehow in the later hours of the day (European time / Berlin time). The last screenshots I made in the late evening.

                  Right now (10:40 Berlin time), map, arrows and tabulated wind data seem to be in sync (see screenshots below). Maybe this supports debugging.

                  2026-08-04_10-38.png 2026-08-04_10-39.png 2026-08-04_10-39_1.png

                  F 1 Reply Last reply Reply Quote 0
                  • F Offline
                    Ftjwinfs @Ftjwinfs | Premium
                    last edited by

                    @Suty

                    Another example from just right now.

                    Unusable. Plain wrong.

                    2026-08-05_23-26.png

                    F 1 Reply Last reply Reply Quote 0
                    • F Offline
                      Ftjwinfs @Ftjwinfs | Premium
                      last edited by

                      @suty

                      I'm sorry for again for being so blunt: But right now, instead of showing popup messages of all the nice new features in the app you should show a popup, that says that currently due to still unknown circumstances sadly the forecast that Windy provides is simply wrong.

                      Or how would the Windy team describe the catastrophic discrepancies documented above?

                      This needs to be fixed right now or you need to inform your customers in a official way of the current deficiencies.

                      F 1 Reply Last reply Reply Quote 0
                      • F Offline
                        Ftjwinfs @Ftjwinfs | Premium
                        last edited by

                        So, what do I have to expect tomorrow at 4pm? Some moderate 13-17kn (tabulated data) or brisk 21-27kn (map)?

                        Fix this. Please.

                        2026-08-06_01-02.png

                        SutyS 1 Reply Last reply Reply Quote 0
                        • SutyS Offline
                          Suty Windy Staff @Ftjwinfs
                          last edited by

                          @Ftjwinfs Hello, we probably found the cause and it should be fixed in the release planned for today.

                          F 1 Reply Last reply Reply Quote 0
                          • F Offline
                            Ftjwinfs @Suty | Premium
                            last edited by

                            @Suty That would be great, thank you.

                            SutyS 1 Reply Last reply Reply Quote 0
                            • SutyS Offline
                              Suty Windy Staff @Ftjwinfs
                              last edited by

                              @Ftjwinfs Could you please test it in the latest version, you should have an access to v.51.1.0 now.

                              F 2 Replies Last reply Reply Quote 0
                              • F Offline
                                Ftjwinfs @Suty | Premium
                                last edited by

                                @Suty Right now, it seems fine: The map, the wind arrows and the tabulated data appear consistent. Thanks you a lot.

                                I will also check late in the evening, that's when during the last days I saw the huge inconsistencies.

                                1 Reply Last reply Reply Quote 1
                                • F Offline
                                  Ftjwinfs @Suty | Premium
                                  last edited by

                                  @Suty Unfortunately still not right: Compare tabulated data, wind-arrows ad map in the screenshot (made just now, windy v51.1.0).

                                  2026-08-06_23-16.png

                                  SutyS 1 Reply Last reply Reply Quote 0
                                  • SutyS Offline
                                    Suty Windy Staff @Ftjwinfs
                                    last edited by

                                    @Ftjwinfs Oh okay, it seems that there is a problem with data in locations with shifted time zone to the next day. Can you please provide more info about what location you checked, but also the location from where you checked this data?

                                    F 3 Replies Last reply Reply Quote 0
                                    • F Offline
                                      Ftjwinfs @Suty | Premium
                                      last edited by

                                      @Suty Right now it looks ok again. So it varies over the day from inconsistent to consistent.

                                      I'm on the Aland Islands and check data for the Aland Islands as well as Sweden in the Stockholm area.

                                      The local time-zone is UTC+3 (Mariehamn). Since I'm only a few days here, my local system on the laptop still is in UTC+2.

                                      1 Reply Last reply Reply Quote 0
                                      • F Offline
                                        Ftjwinfs @Suty | Premium
                                        last edited by

                                        @Suty What is the status here?

                                        1 Reply Last reply Reply Quote 0
                                        • F Offline
                                          Ftjwinfs @Suty | Premium
                                          last edited by

                                          @Suty I'm now back in a UTC+2 zone. Issue persists, see screenshot.

                                          What's right? What's wrong? No one knows.

                                          Unusable.

                                          2026-08-11_00-29.png

                                          SutyS 2 Replies Last reply Reply Quote 0
                                          • F Ftjwinfs referenced this topic on
                                          • SutyS Offline
                                            Suty Windy Staff @Ftjwinfs
                                            last edited by

                                            @Ftjwinfs Hello, we will release one more hotfix today, so it will be hopefully solved there. We did many tests, but this one is a bit difficult to handle locally, since the issue is not in every timezone.

                                            1 Reply Last reply Reply Quote 0
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