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

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    • T
      TomSlavkovsky | Premium last edited by

      @idefix37 yes, we are now using GFS FV3

      idefix37 Tomber42 2 Replies Last reply Reply Quote 3
      • idefix37
        idefix37 Sailor Moderator @TomSlavkovsky last edited by idefix37

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

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

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

          1 Reply Last reply Reply Quote 2
          • Tomber42
            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

            Gkikas LGPZ anthony10 2 Replies Last reply Reply Quote 3
            • Gkikas LGPZ
              Gkikas LGPZ Moderator @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.

              idefix37 1 Reply Last reply Reply Quote 1
              • idefix37
                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°

                1 Reply Last reply Reply Quote 1
                • anthony10
                  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. :)

                  1 Reply Last reply Reply Quote 2
                  • RandyBonnette
                    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
                      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 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

                      1 Reply Last reply Reply Quote 0
                      • J
                        JamesWilliam30 Banned last edited by

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                          masstexting Banned last edited by

                          This post is deleted!
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                          • J
                            jamescrane last edited by

                            Hey Randy thanks for your reply!

                            1 Reply Last reply Reply Quote 0
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