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    What source of weather data Windy use?

    Frequently Asked Questions
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    • 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 0
        • ivo
          ivo Administrator @JerryKelih last edited by

          @JerryKelih We use same data source now, ECMWF

          andreasroe C 3 Replies Last reply Reply Quote 0
          • Tomber42
            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

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

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

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              • 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 4
                • Gkikas LGPZ
                  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 LGPZ T 2 Replies Last reply Reply Quote 3
                  • Gkikas LGPZ
                    Gkikas LGPZ Moderator @Gkikas LGPZ last edited by

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

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

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

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

                        @Gkikas-LGPZ The introductory picture was updated.

                        idefix37 1 Reply Last reply Reply Quote 1
                        • idefix37
                          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

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                          • 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.

                            1 Reply Last reply Reply Quote 3
                            • andreasroe
                              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

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

                                @andreasroe Do they offer their data for free?

                                idefix37 Gkikas LGPZ 2 Replies Last reply Reply Quote 1
                                • idefix37
                                  idefix37 Sailor Moderator @Tomber42 last edited by

                                  This post is deleted!
                                  1 Reply Last reply Reply Quote 0
                                  • Gkikas LGPZ
                                    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

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                                    • R
                                      reisfor last edited by

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

                                      Gkikas LGPZ 1 Reply Last reply Reply Quote 0
                                      • Gkikas LGPZ
                                        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 LGPZ N 2 Replies Last reply Reply Quote 2
                                        • Gkikas LGPZ
                                          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
                                          • Z
                                            Zeeshi7897 last edited by

                                            For the ECMWF forecast data do you guys use the paid subscription or is there any free/community plan available for independent researchers ?

                                            J 1 Reply Last reply Reply Quote 0
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