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    The radar wobbles

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    • DavidGAD
      DavidGA | Premium
      last edited by

      Ever since "the future" was added to the radar slider, the regular "past" radar has degraded in quality. While it's playing, the radar data "wobbles", sliding by tiny amounts randomly over the map underneath.

      Any chance of a fix for this? It's quite annoying.

      As an aside: Please add an option to remove the "future" from the slider, I live on the US west coast, right on the edge of the radar coverage zone, so it can't see new rain coming in anyway, making the future prediction fairly useless.

      DavidGAD Sinewave1S 2 Replies Last reply Reply Quote 4
      • DavidGAD
        DavidGA @DavidGA | Premium
        last edited by

        Here's a screen recording of the problem.

        You can see the radar image wiggling back and forth.

        1 Reply Last reply Reply Quote 0
        • S
          S13 | Premium
          last edited by

          I agree. The radar has become almost unusable in some cases. The interpolated motion of rainclouds is so erratic and random that it becomes difficult to see where the rainclouds are actually going. Especially when zoomed in to local mountainous areas.

          My suggestion: Have the option to turn of this interpolation, at least until a far better motion prediction algorithm is implemented.
          For satellite images we already have the option to disable smooth animation, please have an option to disable this for radar images as well.

          idefix37I 1 Reply Last reply Reply Quote 1
          • idefix37I
            idefix37 Sailor Moderator @S13
            last edited by idefix37

            @S13
            If you don’t rely on this new feature which is an extrapolation of the previous radar data, just keep the slider on the white part of the timeline. This feature is only to please the many users who have been asking for it for years because other weather apps do it.

            Valencia_WXV 1 Reply Last reply Reply Quote 1
            • Valencia_WXV
              Valencia_WX @idefix37 | Premium
              last edited by Valencia_WX

              @idefix37 I think he is not talking about future radar. I agree that the new interpolation on the past radar makes it innacurate. At least, we need an option to disable the interpolation for the white line. The new future radar, is not usefull for me, but I understand that many users requested these feature and its OK.

              idefix37I 1 Reply Last reply Reply Quote 1
              • idefix37I
                idefix37 Sailor Moderator @Valencia_WX
                last edited by

                @Valencia_WX
                So he just need to click on the white part of the timeline.
                By the way it is extrapolation not interpolation.

                Valencia_WXV 1 Reply Last reply Reply Quote 0
                • Valencia_WXV
                  Valencia_WX @idefix37 | Premium
                  last edited by

                  @idefix37 This extrapolation makes the radar wobble, the radar should be frame by frame, not extrapolate all the frames. Again im talking about the white part of the timeline not the red part.

                  idefix37I 1 Reply Last reply Reply Quote 0
                  • idefix37I
                    idefix37 Sailor Moderator @Valencia_WX
                    last edited by idefix37

                    @Valencia_WX
                    OK I see what you mean, in the white part of the timeline, the picture makes short stops and returns, specially at the end the radar loop. I compared it with the mobile app which does not yet show the extrapolation phase. There are also some stops but it seems smoother.
                    I don’t know if on the browser version having this wobble issue it is due to the extrapolation calculation for the “predicted” phase.

                    1 Reply Last reply Reply Quote 0
                    • SutyS
                      Suty Administrator
                      last edited by

                      Hi, we still work on this updated radar, however, there is an issue with data we get from the source. For an explanation, their shots are doubled because of worse synchronization of radars in this area. We will discuss possible adjustments with the product team next week.

                      1 Reply Last reply Reply Quote 2
                      • DavidGAD
                        DavidGA | Premium
                        last edited by

                        To be clear, I'm not talking about the future radar forecast here. (Although I did complain about that in another thread.)

                        I'm talking about the regular "past" radar. It never used to wobble around like it is now, and can be seen in the above video.

                        1 Reply Last reply Reply Quote 1
                        • vortexyaV
                          vortexya | Premium
                          last edited by

                          I really hope the programmers can implement an option to turn off this "future radar" Honestly it is not an improvement at all and as other have said it makes the whole process painful to use. Surely it cant be that difficult to disable this.

                          Station FW8109 (Anna Bay NSW)
                          Weatherflow Tempest

                          1 Reply Last reply Reply Quote 3
                          • robemburyR
                            robembury | Premium
                            last edited by

                            PLEASE just get rid of the future radar. It is incredibly inaccurate to start with. It has ruined the Bureau of Meteorology app and is the reason I use Windy more often now. If you have to keep it, at least make an option to toggle it on/off. PLEASE!

                            SutyS 1 Reply Last reply Reply Quote 1
                            • SutyS
                              Suty Administrator @robembury
                              last edited by

                              @robembury We will change the default start of the animation, so if you hit the play button, observed data will be played. However, there won't be any possibility to completely turn off this forecast.

                              vortexyaV M 2 Replies Last reply Reply Quote 0
                              • idefix37I idefix37 referenced this topic on
                              • vortexyaV
                                vortexya @Suty | Premium
                                last edited by

                                @Suty Thank you, that will certainly help. We have had very severe storms here in NSW Australia the last few days and the existing "slider" has been a total pain.
                                Hopefully the algorithm that controls this prediction will improve, is it an output from an LLM ?
                                I tried it this afternoon in the midst of a severe thunderstorm outbreak and it seems to be better than it was several days back. Also the juddering of the live (current ) radar had improved, so I live in hope :)

                                Station FW8109 (Anna Bay NSW)
                                Weatherflow Tempest

                                1 Reply Last reply Reply Quote 0
                                • DavidGAD
                                  DavidGA | Premium
                                  last edited by

                                  This is still happening. The regular past radar (not the future forecast) is wobbling and sliding around the map.

                                  1 Reply Last reply Reply Quote 0
                                  • Sinewave1S
                                    Sinewave1 @DavidGA | Premium
                                    last edited by

                                    @DavidGA

                                    Yup, not a fan. Don't like how it works, don't like what it does.

                                    The movement predictions can also be wrong by up to 45 deg for storms and squalls.

                                    Plus, it degrades the actual radar animation. Not worth having.

                                    1 Reply Last reply Reply Quote 0
                                    • Sinewave1S
                                      Sinewave1 | Premium
                                      last edited by Sinewave1

                                      Also: Currently, I have low-level NE onshore showers (that are developing into rain-bands), plus a monsoonal flow around a Low, bringing mid-level showers down from the NNW, over the top of them.

                                      They cross each other at about 90 degrees, and at a similar movement speed.

                                      So the prediction algorithm just spits the difference between them, and predicts they'll all move SSW!

                                      No, none of these showers move SSW! They of course continue on their original headings. So this prediction is quite useless to me, it just averages the NET movement vector, rather than predicting movement and speeds of individual features, based on past movement and speed.

                                      Plus it plays that 'prediction' first, instead of the logged data animation, which is actually predicatively very useful.

                                      It's not a good feature.

                                      1 Reply Last reply Reply Quote 1
                                      • SutyS
                                        Suty Administrator
                                        last edited by

                                        @DavidGA We are already preparing the solution for this issue, I hope it will be out soon.

                                        @Sinewave1 We are still getting the feedback and we will try to do our best to optimize the behavior.

                                        Sinewave1S 1 Reply Last reply Reply Quote 2
                                        • Sinewave1S
                                          Sinewave1 @Suty | Premium
                                          last edited by

                                          @Suty

                                          Thanks, an example of what's occurring tonight.

                                          Source: Windy.com
                                          SutyS 1 Reply Last reply Reply Quote 2
                                          • SutyS
                                            Suty Administrator @Sinewave1
                                            last edited by

                                            @Sinewave1 We already released updated version, however, please let us know if you see anything strange.

                                            Sinewave1S 2 Replies Last reply Reply Quote 2
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