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    Why is Wind speed in hurricanes so wrong?

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    • Ricky_LightningR
      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.

      Jamo@illumen8.co.uk

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

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

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

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

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          • OttavsO
            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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              • OttavsO
                Ottavs
                last edited by

                Rain scale only goes up to 1.2 in.

                C 1 Reply Last reply Reply Quote 0
                • OttavsO
                  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_LightningR 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.

                          1 Reply Last reply Reply Quote 0
                          • VOLPE DIEGOV
                            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.

                            DVESY

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

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

                              1 Reply Last reply Reply Quote 0
                              • 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_LightningR 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 LGPZG
                                        Gkikas LGPZ Moderator Meteorologist @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.

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                                          • Y
                                            yeaYeah
                                            last edited by

                                            Assuming measurements are accurately measured and all else being equal.... Are there any live feeds to watch in Key West?

                                            1 Reply Last reply Reply Quote 0
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