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    Discrepancy between the displayed precipitation total and the local forecast.

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    • KleibiK Offline
      Kleibi | Premium
      last edited by

      The precipitation totals (rainfall or snowfall) shown across an area are often significantly higher than the total calculated from the local forecast. For example: A precipitation total of 100 mm is calculated for a specific area and time period. If I click on this region and calculate the precipitation total based on the local forecast, I only get 60 mm.
      This issue has existed for a long time. Am I missing something?

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

        @Kleibi
        How do you get this local forecast ?
        Could you show screenshot?

        KleibiK 1 Reply Last reply Reply Quote 0
        • KleibiK Offline
          Kleibi @idefix37 | Premium
          last edited by idefix37

          @idefix37 sure:

          windy rain area.png

          windy local forecast.png

          KleibiK 1 Reply Last reply Reply Quote 0
          • KleibiK Offline
            Kleibi @Kleibi | Premium
            last edited by

            Sorry, in the second picture i used meteoblue AI. But when I use as model ECMWF (like in the first pic) i get the same result: no precipitation in the local forecast)

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

              @Kleibi
              This is because the map in your second screenshot is not drawn by Meteoblue. This model is a non-gridded model, so its data can’t be used to draw a weather layer. So Meteoblue is only providing the data for the location forecast table and the map is from another model, probably from ECMWF in your screenshot.

              KleibiK 1 Reply Last reply Reply Quote 0
              • KleibiK Offline
                Kleibi @idefix37 | Premium
                last edited by idefix37

                @idefix37 thanks. but it happens as well when iuse the same model (in the following screenshots ECMWF)

                Bildschirmfoto 2026-09-02 um 08.16.42.png

                Bildschirmfoto 2026-09-02 um 08.17.06.png

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

                  @Kleibi
                  You are right.
                  The rain accumulation layer shows more than 10 mm over 5 days, whereas the detailed forecast table at same location displays only 2.5mm over 15 days!

                  IMG_4522.jpeg

                  @suty It seems important to clarify this issue.

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