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    Why is Wind speed in hurricanes so wrong?

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    • C
      cape | Premium last edited by

      We rely on Windy and a couple of other sites for our forecasting. We are sailors in the Caribbean but also used the site for sailing along the coastal USA. We are not meteorologists, we are not computer geeks. We just need factual information to plan our routes which can be 3-5 days. And, factual information so we can run from storms. While I understand most of what is being written, the average person who is trying to use the site for daily forecasting could use some simplified help and data. The site is awesome and is our go-to but it can be confusing for the average person. I have been using the site for three years and still am learning how to use it. I thing that is too long of a curve. And, we do rely heavily on the winds being correct--I had no idea until I read the above that they are averages as I too wondered about the winds in Irma. Is there a tutorial for dummies? If not, could you consider adding one? Thank you.

      Ricky_Lightning 1 Reply Last reply Reply Quote 0
      • C
        ccartee last edited by

        @Mekronid said in Why is Wind speed in hurricanes so wrong?:

        @Siff Trump's budget cuts climate science funding by about 60%. Weather services are downgrading their accuracy accordingly. Also, Tornado and Flood early warning systems will be completely dismantled. Republicans are getting what they voted for.

        TYrump is an awful person and even worse president, but that has nothing to do with windy being inaccurate.

        1 Reply Last reply Reply Quote 1
        • F
          firechf3 last edited by

          No forecast model is 100% accurate and to believe they are is a pipe dream. Hurricanes are living, breathing weather events and change almost as rapidly as most people change their minds. Maybe one day someone will develop one that is 100%, but for now I watch Windy, as its the best available, for now.😏

          1 Reply Last reply Reply Quote 2
          • BodorSoft
            BodorSoft last edited by

            How can i chane metric?

            BS

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

              @BodorSoft
              press "menu" (the 3 horizontal bars at the upper left)
              and then press "settings"

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

                An article answering the question:
                http://www.palmbeachpost.com/news/how-powerful-irma-wind-speed-measured-feet/kBTbPeHeiRpIVaODI8ZfzN/

                Ricky_Lightning 1 Reply Last reply Reply Quote 0
                • L
                  lesliec last edited by

                  @Mekronid RU F'n Kidding me here!?!?! What a bunch of CRAP! That's like saying we here in Texas & Florida deserved Harvey and Irma!!!!

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

                    @julienmary Well Done! U made it sound solve able. Nearly maybe?

                    Jamo@illumen8.co.uk

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

                      @meteo-GR I'm not sure the amount of resources reportedly correlating all of this data is as extensive as you believe. Just my opinion bro. Peace. Stay safe.

                      Jamo@illumen8.co.uk

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

                        @conduit I am neither qualified nor remotely intelligent enough to appreciate your invitation to understand the math! Hee Hee. Cheers anyway.

                        Jamo@illumen8.co.uk

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

                          @conduit It would be a good idea for someone knowledgeable about the mechanics behind this app to produce a Q&A page answering the most sought after questions/functionality

                          Jamo@illumen8.co.uk

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

                            @chibimaddy Firstly - Good Luck these next few days from Me & mine to U & U'rs. I hope to see you back here in the next few days discussing the joys of Windy.com

                            Jamo@illumen8.co.uk

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

                              @cape I am in total agreement with you there. It's got loads of functions and looks great too. Pro version?

                              Jamo@illumen8.co.uk

                              1 Reply Last reply Reply Quote 0
                              • Gabou971
                                Gabou971 Moderator @Siff last edited by

                                @Siff

                                Hello, I'm in Sint-Maarten and I survived Irma (My house didn't). REAL wind values have been constantly updated, thanks to NOAA planes flying through the hurricane constantly. They are today the only way to give us real wind data during such storms (because instruments on the ground fly away). During the peak intensity just before Irma hits sint maarten, they measured 225 mph wind gusts in the eyewall of the hurricane, and sustained wind of 185 mph. We had an anemometer here in Grand-Case airport. the last wind gust measured by the instrument before it broke was 135 mph 2 hours before the eyewall. Everything is destroyed here.

                                Models like GFS and ECMWF cannot predict hurricane winds, especially close to the eye, where the wind is the strongest, because the resolution scale of these models is not wide enough (this is the main reason to me). In the front of the hurricane, there is northerly wind with strong updrafts, 7 kms away, in the eye there is no wind and a strong downdraft, and the 7km away there is a strong southerly wind with updrafts again ! All of that with huge changes in pressure. It's so powerful in a so small area ! That's why they created the Hurricane Weather Research and Forecasting model(HWRF). It is the only model using recon aircraft data, satellite imagery and buoys data at the same time !!! And it is the more precise model to predict hurricane wind direction and force (not the path of the hurricane).

                                So, regarding wind force and direction, the more you are close to the eye, the more GFS and ECMWF model will be inaccurate. But these models are better to predict the path of hurricanes, they work well on bigger scales !

                                1 Reply Last reply Reply Quote 5
                                • A
                                  Anat-Aimee @Siff last edited by

                                  @Siff I am questioning the reasons for the HUGE discrepancy between the supposed wind speeds proclaimed by "The Weather Channel",(150-165 mph), and those which are found on the "Windy" graph.
                                  Something is not Kosher here.
                                  Florida is Not being "whipped" by category 5 hurricane winds.

                                  1 Reply Last reply Reply Quote 0
                                  • A
                                    Anat-Aimee @georgewells last edited by

                                    @georgewells The only possibility is a mix- up in kilometer/ mile usage .
                                    That would make SOME sense of it.

                                    1 Reply Last reply Reply Quote 0
                                    • jmh2002
                                      jmh2002 Moderator Mariners - Seafarers Sailor last edited by jmh2002

                                      Please see many other threads regarding this subject, including this recent one:

                                      https://community.windy.com/topic/9456/dorian-wind-speed-and-pressure/2

                                      And the detailed discussion here:

                                      https://community.windy.com/topic/4415/why-is-wind-speed-in-hurricanes-so-wrong

                                      Additionally, Windy does not create any forecast data but instead only visualises forecast and actual data received from various third party providers.

                                      There are many useful but also complex and expert level tools and data available via Windy, therefore the user must always take care:

                                      • To understand what information they are displaying and viewing
                                      • To understand from where and when the information was sourced
                                      • To understand what this information actually means.

                                      Comparing Forecast data with Actual data can be a common mistake.

                                      Around 1300 UTC on Monday 02 Sept the Windy Hurricane Tracker was reporting wind speeds of 142kn / 164mph / 264kph for Hurricane Dorian.

                                      Hope this helps :)

                                      WINDY is everywhere :)

                                      1 Reply Last reply Reply Quote 0
                                      • jmh2002
                                        jmh2002 Moderator Mariners - Seafarers Sailor last edited by jmh2002

                                        @Anat-Aimee One of your posts has been flagged for moderation and deleted.

                                        Political posts, conspiracy theories, etc, are not acceptable here on the Windy forum.

                                        Please see the FAQ here: https://community.windy.com/topic/8680/political-topics-posts-are-not-acceptable

                                        WINDY is everywhere :)

                                        matemorotz 1 Reply Last reply Reply Quote 1
                                        • matemorotz
                                          matemorotz @jmh2002 | Premium last edited by

                                          Irrelevant if there is 200mph or 300mph, but it's really important if it's under 10, 20 or 40 knots...

                                          Windy is top!

                                          1 Reply Last reply Reply Quote 0
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