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    Rain forecast inconsistency

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    • J Offline
      jfparis | Premium
      last edited by

      Hello

      I am looking at the forecast for the city of London
      https://www.windy.com/multimodel/51.516/-0.092?51.126,-0.092,8

      On a 3 hour basis, I get this
      Screenshot 2024-09-04 at 17-43-13 Windy City of London weather forecast.png

      On an hourly basis I get this
      Screenshot 2024-09-04 at 17-45-16 Windy City of London weather forecast.png

      Look at the rainfall for the period.
      There is either an issue with the row label (which should read mm/h) or there is an issue with the numbers (3 hours of 10mm/hours) should give 30mm for a 3 hours period

      Filip_KF 2 Replies Last reply Reply Quote 0
      • Filip_KF Offline
        Filip_K Windy Staff @jfparis
        last edited by

        Hi @jfparis, thank You for reporting this issue. This is definitely a bug in the Compare feature. I will look into this.

        If You check regular UKV forecast
        3h step
        Screenshot_20240904_173809.png
        1h step
        Screenshot_20240904_173849.png

        You will notice that Saturday and Sunday is too far to the future and forecast step changes to 3 hours. This way, rain precipitation is displayed correctly, but Compare feature simply interpolates missing data (values for hour 00Z, 03Z, 06Z and so on match, but they have different meaning - 3h rain accumulation instead of 1h accumulation) which is wrong.

        1 Reply Last reply Reply Quote 0
        • Filip_KF Offline
          Filip_K Windy Staff @jfparis
          last edited by

          @jfparis
          Fixed. Thank You again for reporting the issue.
          3h step
          Screenshot_20240905_113535.png
          1h step
          Screenshot_20240905_120255.png

          1 Reply Last reply Reply Quote 0
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