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    ECMWF provides forecast simulated radar base reflectivity (dBZ)

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    • R
      Rogerdoger
      last edited by

      Why not provide this output on windy? It has an advantage over the 3 hr rainfall in that it shows instantaneous rainfall whereas the 3hr rainfall rate is an average over the last 3 hours.
      It is easier to locate areas of convective activity with the simulated radar forecast as it does not average out rainfall over the previous 3 hours.
      Please consider adding the ECMWF forecast simulated radar reflectivity to Windy

      TZT 1 Reply Last reply Reply Quote 0
      • R
        Rogerdoger
        last edited by

        A example of an advantage:
        ECMWF may forecast a line of convection moving steadily with the wind, for example. The forecast radar output will show this as a line whereas the 3hr rainfall rate currently on Windy will depict this line as a circle of colour as the rainfall is an average over the previous 3 hours.
        In other words, the forecast radar output will provide additional detail to forecast precipitation.

        1 Reply Last reply Reply Quote 0
        • TZT
          TZ Administrator @Rogerdoger
          last edited by

          @rogerdoger Hi, rain layer in Windy is 3h accumulation, not average. I did not find simulated radar in ECMWF products. Could you please send me some link?

          Gkikas LGPZG 1 Reply Last reply Reply Quote 1
          • Gkikas LGPZG
            Gkikas LGPZ Moderator Meteorologist @TZ
            last edited by

            @tz
            a) ECMWF provides Simulated Satellite Data (SSD).
            SSD are forecast images of cloud cover like those taken from satellites.

            b) In this site
            https://weather.us/model-charts/euro/central-europe/base-reflectivity/20180814-2100z.html
            I found a product named "Base reflectivity" that seems to be an ECMWF product
            but I'm not sure that ECMWF provides such a forecast product.

            TZT 1 Reply Last reply Reply Quote 0
            • TZT
              TZ Administrator @Gkikas LGPZ
              last edited by

              @gkikas-lgpz Thank you! We were already experimenting with simulated satellite data, but did not found it useful for Windy. Regarding simulated dbz: I am afraid that there is no such product. This is list of current ECMWF forecast products: https://www.ecmwf.int/en/forecasts/datasets/set-i

              R 2 Replies Last reply Reply Quote 1
              • R
                Rogerdoger @TZ
                last edited by

                @tz
                Hi,

                Sorry for the confusion

                The actual product is instantaneous precipitation rate....see the link below which is basically the same as simulated radar. You have to scroll down a bit to find it.

                https://www.ecmwf.int/en/forecasts/documentation-and-support/evolution-ifs/cycles/summary-cycle-45r1

                It is included with with the new lighting forecast data in the latest model update.

                The base reflectivity output from ECMWF I mentioned is in fact the instantaneous precipitation rate converted to radar dBZ values.

                Could you add this product (instantaneous precipitation rate) to Windy please?

                Cheers,

                Mark.

                TZT 1 Reply Last reply Reply Quote 0
                • R
                  Rogerdoger @TZ
                  last edited by

                  @tz

                  Just to clarify: It is Total Precipitation Rate (same as Instantaneous Precipitation Rate)

                  Thanks,

                  Mark.

                  1 Reply Last reply Reply Quote 0
                  • TZT
                    TZ Administrator @Rogerdoger
                    last edited by

                    @rogerdoger Hi, unfortunately not. Only if there are more people requesting it, but I think that this layer would not be widely used.

                    R 1 Reply Last reply Reply Quote 0
                    • R
                      Rogerdoger @TZ
                      last edited by

                      @tz

                      Hi,
                      That's a shame. I can't see the problem in adding it for those that would use it. As I mentioned above, it has advantages over the 3 hour precipitation.
                      Surely, the more choice for users, the better!

                      1 Reply Last reply Reply Quote 0
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