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    Add NDFS NOAA model to list of models in Windy?

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    • idefix37I Offline
      idefix37 Sailor Moderator @blahdi
      last edited by

      @blahdi
      This is the list of NOAA’s models:
      https://nomads.ncep.noaa.gov/
      Which one do you want?

      Gkikas LGPZG 1 Reply Last reply Reply Quote 1
      • Gkikas LGPZG Offline
        Gkikas LGPZ Moderator Meteorologist @idefix37
        last edited by

        This post is deleted!
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        • B Offline
          blahdi
          last edited by

          @idefix37 , I have sent email to NOAA asking this question. I do not know offhand which specific model that web site shows - in general, i have observed a few times (since I use both Windy-NAM and NOAA web site) that it is different than NAM.

          I will let u know as soon as I get a response. Thanks!

          1 Reply Last reply Reply Quote 0
          • B Offline
            blahdi
            last edited by blahdi

            @idefix37

            https://www.weather.gov/mdl/ndfd_data_grid

            As per someone from NOAA, (he is not part of dept that owns that web site), the web site uses the model at link above. Its called National Digital Forecast Database.

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

              @blahdi
              OK NDFD is not a model but an ensemble of models reviewed by meteorologists. Some additional information
              https://luckgrib.com/models/ndfd_conus/

              B 1 Reply Last reply Reply Quote 0
              • B Offline
                blahdi @idefix37
                last edited by

                @idefix37

                Thank u for clarifying. This probably explains why it is relatively more accurate than NAM.

                One question: Even if it is human involved and ensemble of models, do they store the 'output' data in such a way that it can be parsed by Windy? Presumably, NWS web site must be parsing the same output data to show on their web site?

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

                  @blahdi
                  NDFD data seem available as GRIB files, but I don’t know whether Windy team is willing to add these data.

                  1 Reply Last reply Reply Quote 0
                  • B Offline
                    blahdi
                    last edited by

                    @idefix37 - this makes sense.

                    Windy team - can u pls respond when u get the chance? hoping it is as simple as adding a new URL for NDFD data. I can help u beta test it.

                    I know NWS web site (based on NDFD data) is popular among outdoor enthusiasts - mountaineering and sea kayaking.

                    ivoI 1 Reply Last reply Reply Quote 0
                    • ivoI Offline
                      ivo Windy Staff @blahdi
                      last edited by

                      @blahdi Is this NDFS so good? Which website uses it.

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                      • B Offline
                        blahdi
                        last edited by blahdi

                        @ivo - its really good, specifically in the mountains or areas surrounded by mountains (e.g in the puget sound (its a bay) as well since it is in the convergence zone due to mountains).. For cities (without much impact of mountains), many sources should work..

                        NDFD is used by National Weather Service - US govt official weather site - if u see banner above, it says NWS and NOAA below it.
                        https://www.wrh.noaa.gov/forecast/wxtables/index.php?wfo=sew

                        GFS is really bad for mountains or mountain affected terrains -

                        NAM is acceptable, but NDFS is much better than NAM.

                        You can search for a posts by a renowned weather scientist called "cliffmass" from Pacific Northwest. He has blogs on major problems with US govt published models. Unfortunately, the models do not publish their historic accuracy numbers for different terrains, and hence get away with inaccuracies. There was startup which compared the accuracies of different models for cities - and they reported one of the apps as more reliable. But, afaik, there hasn't been such a accuracy study done for mountains and water.

                        Gkikas LGPZG 1 Reply Last reply Reply Quote 0
                        • Gkikas LGPZG Offline
                          Gkikas LGPZ Moderator Meteorologist @blahdi
                          last edited by

                          @blahdi
                          The site you mentioned, says:
                          "This Interface only works for Western Region National Weather Service Offices."

                          Is it available only for NorthWest USA?

                          1 Reply Last reply Reply Quote 1
                          • B Offline
                            blahdi
                            last edited by

                            @Gkikas-LGPZ -

                            It looks like the Web site URL is different for different regions (local weather), but all of them are linked if u start at https://www.weather.gov/.

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