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    What source of weather data Windy use?

    Frequently Asked Questions
    model grib file
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    • D
      DaveySoCal
      last edited by

      @ivo said:

      NOAA

      Thank you for all the hard work on Windyty. It is a very beautiful and accurate forecast site. Although I have looked at the sites and sources listed above, I was unable to find out if there is any data other than satellite data used. Is data being pulled from ground or ocean based stations that go into the modeling as well?

      I 1 Reply Last reply Reply Quote 2
      • JerryKelihJ
        JerryKelih
        last edited by

        @ivo Hey, I was trying to use your app here in Norway for snowkiting, and water now in spring/summer. However data used in Windyty is very inaccurate for here, while yr.no seems to be 90% accurate.

        Is there a way to "plug in" data from yr.no without extensive development? Im a product manager for data visualisation app myself so I understand the process and depth, but dont know your code well to undestand this.

        ivoI 1 Reply Last reply Reply Quote 1
        • I
          inomyabcs @DaveySoCal
          last edited by

          @DaveySoCal Yes, the weather models use observed sources that are available at the time of ingest. Common ingest sources are RADAR, satellite, aircraft reports, upper air soundings (weather balloons), ground stations, and ocean buoys. You can read more about the ingest data sources for the GFS here (it is the same for the other models), http://www.emc.ncep.noaa.gov/GFS/doc.php paragraph 1.3 (GDAS).

          1 Reply Last reply Reply Quote 3
          • S
            SkyHawk
            last edited by SkyHawk

            Hello and thanks for this incredible website.

            My question is: Where do you get the METARs and TAFs data for the airports from? Is it an official source?

            Thank you very much for all your hard work on this project. Regards!!!

            1 Reply Last reply Reply Quote 1
            • ivoI
              ivo Administrator @JerryKelih
              last edited by

              @JerryKelih We use same data source now, ECMWF

              andreasroeA C 2 Replies Last reply Reply Quote 0
              • Tomber42T
                Tomber42 Moderator
                last edited by

                Maybe interesting for the windy team, there are now most data of Dwd opendata http://www.dwd.de/EN/ourservices/opendata/opendata.html

                Maybe you can make windy better with this

                antworten

                Greetings from Tomber

                A 1 Reply Last reply Reply Quote 3
                • A
                  anibalgusso @Tomber42
                  last edited by

                  @Tomber42 Hi, how do I get spatial data from Dwd?

                  1 Reply Last reply Reply Quote 0
                  • P
                    pfaure
                    last edited by

                    Hello,

                    I was wondering if you could incorporate the modeling information for Canada. Data found here:
                    https://weather.gc.ca/model_forecast/model_e.html

                    1 Reply Last reply Reply Quote 7
                    • Gkikas LGPZG
                      Gkikas LGPZ Moderator @ivo
                      last edited by

                      @ivo
                      Please add ICON and AROME boundaries
                      in the map with the "brief overview of all models..."

                      Gkikas LGPZG T 2 Replies Last reply Reply Quote 3
                      • Gkikas LGPZG
                        Gkikas LGPZ Moderator @Gkikas LGPZ
                        last edited by

                        @ivo
                        12b969cf-893b-4acd-b41d-dfbc90fd6f96-εικόνα.png

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

                          .....
                          b2108501-cbbb-44d9-9991-46d4ee63ca1f-εικόνα.png

                          1 Reply Last reply Reply Quote 3
                          • T
                            TomSlavkovsky API developers @Gkikas LGPZ | Premium
                            last edited by

                            @Gkikas-LGPZ The introductory picture was updated.

                            idefix37I rkeel61R 2 Replies Last reply Reply Quote 1
                            • idefix37I
                              idefix37 Sailor Moderator @TomSlavkovsky
                              last edited by idefix37

                              @TomSlavkovsky
                              AROME is provided with 2 resolutions 1.25km and 2.5km. One of them is updated faster. I suppose that Windy use only the 2.5km version? In this case it should better, may be, to mention only the resolution used on Windy ?
                              For GFS you give now a 13km resolution. I have understood that this 13km resolution is used for computation, but then data are dispachted with a 22/23km resolution. Or has this been changed

                              D 1 Reply Last reply Reply Quote 1
                              • D
                                dzuremar @idefix37 | Premium
                                last edited by dzuremar

                                @idefix37 Hello ! We use AROME with resolution 0.01° (1.3km). Both of the AROME resolutions have 00, 06, 12 and 18 ref time runs. There are also 03, 09, 15 and 21 ref time runs which we don't process. Advantage of AROME 0.025° (2.5km) is that it includes pressure-level layers. AROME 0.01° provides only surface-level layers, only wind and relative humidity are additionally in 20m, 50m and 100m altitude. However, AROME 0.025° also covers much smaller area - a square that covers whole France and a bit of surrounding area.

                                foobarjoF 1 Reply Last reply Reply Quote 4
                                • andreasroeA
                                  andreasroe @ivo | Premium
                                  last edited by

                                  Hi @ivo! I am also curious about this topic. As I understand ECMWF is the model weather files/forecast is modeled in, and forecasts are produced of several met offices use in Europe. For what I know Yr.no (Norwegian Met Office) has more detailed topography, we often find their forecasts to be more accurate than i.e British Met Office.

                                  Is this correctly understood? In case, is the yr.no data included in windy.com?

                                  @JerryKelih

                                  Tomber42T 1 Reply Last reply Reply Quote 2
                                  • Tomber42T
                                    Tomber42 Moderator @andreasroe
                                    last edited by

                                    @andreasroe Do they offer their data for free?

                                    Greetings from Tomber

                                    Gkikas LGPZG 1 Reply Last reply Reply Quote 1
                                    • Gkikas LGPZG
                                      Gkikas LGPZ Moderator @Tomber42
                                      last edited by

                                      @Tomber42
                                      They offer (for free) very little data and only for limited areas.
                                      https://hjelp.yr.no/hc/en-us/articles/360009342993-GRIB-weather-data

                                      1 Reply Last reply Reply Quote 0
                                      • R
                                        reisfor
                                        last edited by

                                        How can I see the source of data windy is using, for example regarding weather radar?

                                        Gkikas LGPZG 1 Reply Last reply Reply Quote 0
                                        • Gkikas LGPZG
                                          Gkikas LGPZ Moderator @reisfor
                                          last edited by

                                          @reisfor
                                          For the source of forecast data (model), press the "clock" symbol
                                          ef4e0ee9-4160-44c6-a003-75042d1df439-εικόνα.png

                                          Gkikas LGPZG N 2 Replies Last reply Reply Quote 2
                                          • Gkikas LGPZG
                                            Gkikas LGPZ Moderator @Gkikas LGPZ
                                            last edited by

                                            @reisfor
                                            Lightning data come from blitzortung.
                                            WX radar data from national meteo. services, shown if you zoom in a country
                                            e.g. DWD for Germany
                                            5621e81d-f578-444a-98cc-ccb57c9563ec-εικόνα.png

                                            1 Reply Last reply Reply Quote 2
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