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    NOAA is about to make some big changes to its global weather model

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    • T Offline
      TomSlavkovsky API developers | Premium
      last edited by

      @idefix37 yes, we are now using GFS FV3

      idefix37I Tomber42T 2 Replies Last reply Reply Quote 3
      • idefix37I Offline
        idefix37 Sailor Moderator @TomSlavkovsky
        last edited by idefix37

        @TomSlavkovsky
        Thank you! It’s great to know!

        1 Reply Last reply Reply Quote 0
        • D Offline
          dootsonfire
          last edited by

          So what is the grid resolution? Windy still says GFS @ 22km but isn’t FV3 @ 13km?

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          • Tomber42T Offline
            Tomber42 Moderator @TomSlavkovsky
            last edited by

            @TomSlavkovsky said in NOAA is about to make some big changes to its global weather model:

            @idefix37 yes, we are now using GFS FV3

            You should clarify that in the text on the windy page if you click at clock symbol

            Greetings from Tomber

            Gkikas LGPZG anthony10A 2 Replies Last reply Reply Quote 3
            • Gkikas LGPZG Offline
              Gkikas LGPZ Moderator Meteorologist @Tomber42
              last edited by

              @Tomber42
              As I see the wind (or temperature) field over rough terrain (mountains)
              I believe that GFS is (still) at 22km resolution.

              idefix37I 1 Reply Last reply Reply Quote 1
              • idefix37I Offline
                idefix37 Sailor Moderator @Gkikas LGPZ
                last edited by idefix37

                @Gkikas-LGPZ
                @dootsonfire
                @Tomber42
                I have got some information from weather specialists and they confirm that:

                • the old GFS v 14 had already a native resolution of 13km same as the new GFS FV3 v 15. This is the computational resolution.
                  It is confirmed by NOAA :
                  « GFS Version 15.1 maintains a horizontal resolution of 13 km and has 64 levels in the vertical extending up to 0.2 hPa »
                • The old GFS was dispatched to users by GRIB files with a 0.25° resolution. And this is not changed with the new GFS FV3 v 15.

                247D2E4C-0231-43E8-B073-6C12480714FE.jpeg

                Note that 0.25° is close to 27 km, when 23 km is 0.2°

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                • anthony10A Offline
                  anthony10 @Tomber42 | Premium
                  last edited by

                  @Tomber42 I would also like to see the FV3 being shown in the Clock info panel, something like (GFS - FV3) just to be more clear. :)

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                  • RandyBonnetteR Offline
                    RandyBonnette
                    last edited by RandyBonnette

                    Hello guys,

                    Here's where you can get more information about FV3-GFS new model: Significant information on the FV3-GFS https://www.emc.ncep.noaa.gov/users/meg/fv3gfs/official and select model (real-time): https://data1.gfdl.noaa.gov/fvGFS/fvGFS_products.php Or find the Pivotalweather portal. You can compare the data there too.

                    B 1 Reply Last reply Reply Quote 0
                    • B Offline
                      BillGIllian @RandyBonnette
                      last edited by

                      @RandyBonnette said in NOAA is about to make some big changes to its global weather model:

                      guys,
                      Here's where you can get more information about FV3-GFS new model: Significant information on the FV3-GFS https://www.emc.ncep.noaa.gov/users/meg/fv3gfs/[website](https://casinority.com/reviews/) and select model (real-time): https://data1.gfdl.noaa.gov/fvGFS/fvGFS_products.php Or find the Pivotalweather portal. You can compare the data there too.

                      Thanks for recommendations

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                      • J Offline
                        JamesWilliam30 Banned
                        last edited by

                        This post is deleted!
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                        • M Offline
                          masstexting Banned
                          last edited by

                          This post is deleted!
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                          • J Offline
                            jamescrane
                            last edited by

                            Hey Randy thanks for your reply!

                            1 Reply Last reply Reply Quote 0
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