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    Windy is the first weather service in the world to globally forecast thunderstorms

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    • ivo
      ivo Administrator last edited by Marienka

      We are proud to announce that we are now able to forecast Thunderstorms, which is a map layer created as a combination of Rain and Lightning density.

      Many efforts have resulted in lightning density forecast by ECMWF – which is very accurate. Kudos to all the guys in London and Reading who did a great job. Technical description is here.

      Enjoy the new Thunderstorm forecast and STAY SAFE!!!!

      _center_shadow


      Please help:

      This thunderstorm forecast can save lives, but we need to propagate it. If you are a journalist, please promote information about this service. Windy is free, without ads, and we just want to help others.


      Download a Press Release


      Blog post with more detailed info: https://blog.windy.com/new-global-lightning-forecast


      idefix37 V S 3 Replies Last reply Reply Quote 46
      • idefix37
        idefix37 Sailor Moderator @ivo last edited by

        @ivo
        Great idea to mix the layer of rain and lightning

        Gkikas LGPZ 1 Reply Last reply Reply Quote 9
        • Gkikas LGPZ
          Gkikas LGPZ Moderator @idefix37 last edited by Gkikas LGPZ

          @idefix37
          @ivo
          Hmm. I'm not sure about this "mix".
          See the following screenshots for today afternoon.
          At the left image, someone may think that Czechia will face more intense tstms
          than Moldova and Ukraine.
          But... lightning forecast (right image) predicts more tstms over Ukraine!

          0_1531210358825_01f8c4a2-7f20-4f45-bd58-189f4ce73f17-εικόνα.png

          I'm afraid this will be more obvious during the winter,
          when a full 3 hrs of moderate rain (greenish colours) with a very low lightning density
          will interpreted as moderate (or heavy) thunderstorms.

          A good way to overcome that problem is to show bigger lightning symbols
          over areas of high lightning density.
          The same with "snow".

          P.S. how about to leave "rain/snow" feature as it was in the past
          and to announce this new layer as "all-in-one" ?

          idefix37 1 Reply Last reply Reply Quote 5
          • idefix37
            idefix37 Sailor Moderator @Gkikas LGPZ last edited by idefix37

            @gkikas-lgpz
            There are different thickness of flash symbol as it can be seen on this zoomed view on a thunderstorm area in North Dakota this morning at 9h00 UTC. They correspond roughly to the lightning density.

            0_1531223463608_D538F74B-0FF2-4831-9325-A4D878F80469.jpeg

            In winter is it possible to have snow precipitation and thunderstorm at the same place? Then it could give some display trouble?

            Gkikas LGPZ 1 Reply Last reply Reply Quote 5
            • Gkikas LGPZ
              Gkikas LGPZ Moderator @idefix37 last edited by Gkikas LGPZ

              @idefix37
              Yes! There are different thickness of flash symbols!
              Ivo, sorry! I did not notice it earlier.

              Yes, it is possible to have thundersnow.
              https://en.wikipedia.org/wiki/Thundersnow

              If you zoom-in over east Nepal-China border (Himalayas) you'll see such areas.
              https://www.windy.com/?rain,2018-07-16-12,27.885,86.891,8

              I believe (if 2 different situations exist, e.g. snow and tstm) the "strongest" feature must come into view (appear).
              The "strength" is determined by the "bigger number" in W.M.O. table of weather symbols.
              See: wxSymbols_anno1.pdf , here http://weather.rap.ucar.edu/info/about_wxsymbol.html

              1 Reply Last reply Reply Quote 2
              • T
                TaffeyJane last edited by

                Awesome feature

                1 Reply Last reply Reply Quote 0
                • F
                  fanatic Windsurfer last edited by

                  Super prace, jen mi chybi k uplne dokonalosti volba bourky ve widgetu (web aplikace) tak abych se mohl operativne prepinat mezi radarem a bourkama. Primlouvam se za tuto drobnou upravu.

                  1 Reply Last reply Reply Quote 0
                  • A
                    Amos Macias last edited by

                    GRAN IDEA , MUCHAS GRACIAS , MUY NECESARIO EN LOS BARCOS MERCANTES NAVEGANDO , GRACIAS .

                    1 Reply Last reply Reply Quote 1
                    • W
                      Windy City last edited by

                      Great addition, great site, every day viewing,

                      1 Reply Last reply Reply Quote 1
                      • Javier Cespedes
                        Javier Cespedes last edited by

                        Me parece una aplicación excelente!!!

                        1 Reply Last reply Reply Quote 0
                        • drjduncan
                          drjduncan | Premium last edited by

                          Well done! I like this better every day. DrD

                          Jim

                          F 1 Reply Last reply Reply Quote 2
                          • drjduncan
                            drjduncan | Premium last edited by

                            Footnote from DrD...I would like a float-out label on the icons. I don't know which one does what, yet. It would help if they had a mouse-over label. Thanks, though...this is still great.

                            Jim

                            1 Reply Last reply Reply Quote 0
                            • Tomber42
                              Tomber42 Moderator last edited by

                              Not sure about first weather service...

                              Look at kachelmannwetter (Germany)
                              https://kachelmannwetter.com/de/modellkarten/euro/deutschland/blitzdichte/20180711-1500z.html

                              Greetings from Tomber

                              Gkikas LGPZ 1 Reply Last reply Reply Quote 2
                              • J
                                jerrychf last edited by

                                I, a fishing guy in Hong Kong thanks to Windy that provide a very accurate wind forecast for me. Really love it.

                                1 Reply Last reply Reply Quote 1
                                • Amikino
                                  Amikino last edited by

                                  Super!!!!

                                  1 Reply Last reply Reply Quote 2
                                  • B
                                    burzik last edited by

                                    Вполне адекватный и прорисовка хорошая

                                    1 Reply Last reply Reply Quote 0
                                    • mwvanderwalt
                                      mwvanderwalt | Premium last edited by

                                      You guys are better than my national weather service, for crying out loud. Got any work for a remote sensing specialist?

                                      1 Reply Last reply Reply Quote 3
                                      • E
                                        ermasanet last edited by

                                        Uso Windy per programmare le mie gite di scialpinismo e Alpinismo

                                        1 Reply Last reply Reply Quote 0
                                        • tuanmendv
                                          tuanmendv last edited by

                                          very good

                                          1 Reply Last reply Reply Quote 1
                                          • R
                                            ramayana last edited by

                                            Dear Sir, dear madam

                                            5 minutes ago I discovered your service.
                                            I had to hold my breath, I cannot believe
                                            the quality and availability of your service.
                                            In a few years I will start a circumnavigation,
                                            your "Windy" will keep me safe.

                                            Dr. Peter Kaltwasser
                                            Marina di Porto Ottiolu SS
                                            Sardegna, Italy

                                            ship`s name: RAMAYANA

                                            1 Reply Last reply Reply Quote 4
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