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    Why is Wind speed in hurricanes so wrong?

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    • C
      conduit @Ricky_Lightning last edited by

      @Ricky_Lightning See my post, this is not a "data withholding" problem. It's math. There are only so many ways to aggregate a bunch of measurements into one while preserving the character of the data.

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

        @meteo-GR what would be the point in comparing the two as you've suggested? The source of the data in both examples, is from the same source.

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

          Why are the rain and wind scales not high enough for purposes in hurricanes and unusual weather?

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          • C
            conduit @Ottavs last edited by

            @Ottavs Because it is showing averages, not peak measurements.

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            • Ottavs
              Ottavs last edited by

              My wind scale only goes up to 60 Kt.

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              • C
                conduit @Ottavs last edited by

                @Ottavs Right. It's showing averages. You could have 3 measurements for a city, for example, 50mph, 50mph, and a gust of 150mph. The average is 83mph.

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                • Ottavs
                  Ottavs last edited by

                  Rain scale only goes up to 1.2 in.

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                  • Ottavs
                    Ottavs last edited by

                    I think Irma is averaging more than any one component of 60. Sustained winds were reported at 175+. The wind scale offers colors for only up to 60.

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                    • C
                      conduit @Ottavs last edited by

                      @Ottavs It's only measuring how much is dropping for that hour, it's not adding up all the rain over time to a single area. 1.2 inches of rain in an hour is a lot.

                      Ricky_Lightning 1 Reply Last reply Reply Quote 0
                      • C
                        conduit @Ottavs last edited by

                        @Ottavs First of all, it's in knots, not mph. Second, sustained wind measurements are much more complicated:
                        https://en.wikipedia.org/wiki/Maximum_sustained_wind

                        Basically, it's a 1 minute measurement. That's it. Windy is showing you the average wind speed for an hour. They could show you only the max wind speeds everywhere for the hour, but it would likely be very misleading.

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                        • J
                          Jclaro @Siff last edited by

                          @Siff Everything you are quoting here comes from research. Now to apply that in mass scale, manage, and sell it cost $$ and I would like ask who do you think is doing that? Who is going to pay for the communications, power supplies, server data gathering, data accuracy, historians, etc... What is out there is what is out there. You are talking about creating and managing a system that reaches the pockets of many numerous political lines and everyone want's to control and pocket $$ for the ability to contribute to the overall success of the best system.

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                          • J
                            Jclaro @frostymon last edited by

                            @frostymon looking at the wind speed readings at the various sensors. You can see that many of the public sensors reporting valid data up to some time at which either the communications/power/or device has down time. The wind speeds maybe due to the mean of these readings if the data has a good quality else the data is thrown out and the data in time is bad data...not due to the algorithm but the infrastructure.

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                            • VOLPE DIEGO
                              VOLPE DIEGO last edited by

                              Hola. Para hacer cálculos de viento pueden tomar como referencia el oleaje.
                              Tanto el largo como la altura y el desplazamiento, de las mismas.

                              J 1 Reply Last reply Reply Quote 1
                              • O
                                OhioDave last edited by

                                Are Gust measurements smoothed out too or is that real data?

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                                • J
                                  Jclaro @VOLPE DIEGO last edited by

                                  @VOLPE-DIEGO interesante

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                                  • M
                                    muchisantres last edited by

                                    Es tan lógico que sea así, como lo es un cálculo de cualquier evento o comunidad. Hay innumerables variantes, dinámicas todas, que sólo permite establecer un mix, un promedio de todas ellas, acotadas también en un período de tiempo. Excelente sitio www.windy.com Lo visto siempre. Gracias.

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                                    • C
                                      chibimaddy last edited by

                                      Thank GOD I found this on here. I didn't know the wind speeds were wrong and hubby and I were planning on sticking it out here in our home tomorrow based upon the speeds they were giving.If they are THAT wrong, you should just not have them on here at all.

                                      Y Ricky_Lightning 2 Replies Last reply Reply Quote 0
                                      • U
                                        ughini2017 last edited by

                                        Climate change and global warming are a big lie!
                                        People are getting more stupid each day!

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

                                          @Ricky_Lightning
                                          Actual wind measurments are those made from anemometers (windmeters) located on weather stations (mostly airports), on buoys and those made from specialized sattelite instruments. I'm talking about comparing these with the values that gives the model at the same place.
                                          For example, Key West International Airport is measuring wind from NE (40 degrees) 36 knots gusts 52 kts and the European model (ECMWF) forecasts for the same position wind from same direction at 56 kts.
                                          0_1505023005699_upload-98e45697-063e-4c7b-a70e-0c9048da0bf8

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                                          • R
                                            Rubicent @georgewells last edited by

                                            @georgewells It shows me between 100 and 140 mph when i switch to wind and place the "get forecast for this location" marker in the eye wall of the hurricane. Local forecasts are just estimates based off forecast models.

                                            1 Reply Last reply Reply Quote 1
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