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    How to read Meteogram

    Scheduled Pinned Locked Moved Frequently Asked Questions
    meteogram
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    • Claudio GregoC Offline
      Claudio Grego @Caefix | Premium
      last edited by

      @Caefix thank-you

      idefix37I 1 Reply Last reply Reply Quote 1
      • idefix37I Offline
        idefix37 Sailor Moderator @Claudio Grego
        last edited by

        @Claudio-Grego
        @Caefix

        I’ve made a comparison of wind / gusts color scale in the map and in the basic meteogram.
        Not very similar !

        83FEF426-9B58-4F39-9FDD-C92D48EC4727.jpeg

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        • John Kenneth 2J Offline
          John Kenneth 2 @Korina
          last edited by

          @Korina Good day. I have a question related to meteogram. Currently, I am not a premium user of windy.com app therefore the updates of forecast is two times a day. Is time of forecast (from sunrise to sunset)in meteogram is "latest forecast" even I am not a premium user?

          ken21

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          • rjlukhurakhanR Offline
            rjlukhurakhan @Korina
            last edited by

            @Korina said in How to read Meteogram:

            Here is a description of units in Meteogram

            Displayed temperature and dew point represents values 2m above the surface.

            framee 1.png

            Wind displays average wind speed 10m above the surface level.
            Wind gusts display values 10m above the surface in the last 3 hours.

            framee 2.png

            Shaded area symbolises temperature on the upper side and dew point on the lower side. Color matches with the values given, corresponds with the color scale.

            Temperature is close to the dew point = air is humid
            The difference between temp. and d.p. is bigger = air is dry
            Dew point and temp. are equal = relative humidity is 100% (fog)

            framee 4.png

            800h is short for 800hPa
            5km and 6400ft represent elevation both in meters and feet
            FL100 is short for Flight Level 10000ft
            framee 5.png

            Atmospheric pressure asl
            Some values of this curve are shown in the hPa line.

            framee 6.png

            Different colors of precipitations are explained in the Meteogram detail.

            Deep blue = rain
            Pink = convective rain
            Light blue = snow

            Grey clouds in Meteogram are calculated from relative humidity. It can be explained as a distribution of water in the atmosphere. The height in the Meteogram is in pressure levels. km/ft values are only rough estimation and they are AMSL.

            framee 7.png

            Q: What does this Grey Layer means?

            Gkikas LGPZG 1 Reply Last reply Reply Quote 0
            • Gkikas LGPZG Offline
              Gkikas LGPZ Moderator Meteorologist @rjlukhurakhan
              last edited by

              @rjlukhurakhan
              Clouds as calculated from relative humidity aloft.

              rjlukhurakhanR 1 Reply Last reply Reply Quote 2
              • rjlukhurakhanR Offline
                rjlukhurakhan @Gkikas LGPZ
                last edited by

                @Gkikas-LGPZ got it, thank you

                1 Reply Last reply Reply Quote 0
                • R Offline
                  raphipps1966 @Korina | Premium
                  last edited by

                  @Korina said in How to read Meteogram:

                  Here is a description of units in Meteogram

                  Displayed temperature and dew point represents values 2m above the surface.

                  framee 1.png

                  Wind displays average wind speed 10m above the surface level.
                  Wind gusts display values 10m above the surface in the last 3 hours.

                  framee 2.png

                  Shaded area symbolises temperature on the upper side and dew point on the lower side. Color matches with the values given, corresponds with the color scale.

                  Temperature is close to the dew point = air is humid
                  The difference between temp. and d.p. is bigger = air is dry
                  Dew point and temp. are equal = relative humidity is 100% (fog)

                  framee 4.png

                  800h is short for 800hPa
                  5km and 6400ft represent elevation both in meters and feet
                  FL100 is short for Flight Level 10000ft
                  framee 5.png

                  Atmospheric pressure asl
                  Some values of this curve are shown in the hPa line.

                  framee 6.png

                  Different colors of precipitations are explained in the Meteogram detail.

                  Deep blue = rain
                  Pink = convective rain
                  Light blue = snow

                  Grey clouds in Meteogram are calculated from relative humidity. It can be explained as a distribution of water in the atmosphere. The height in the Meteogram is in pressure levels. km/ft values are only rough estimation and they are AMSL.

                  framee 7.png

                  I don't understand what the grey areas mean. Can someone explain please

                  idefix37I 1 Reply Last reply Reply Quote 0
                  • idefix37I Offline
                    idefix37 Sailor Moderator @raphipps1966
                    last edited by

                    @raphipps1966
                    The grey areas mean clouds.

                    R 1 Reply Last reply Reply Quote 0
                    • R Offline
                      raphipps1966 @idefix37 | Premium
                      last edited by

                      @idefix37 But the cloud base today scattered at 2700 and Broken at 3700 at Lydd airport. There was no rain except a,drizzle at 13.00 UTC. Yet the Meteogram showed a dark band right at the bottom with 0.2 blue vertical line at 13.00 UTC. The 'band' was almost black from late morning until late afternoon

                      idefix37I 1 Reply Last reply Reply Quote 0
                      • idefix37I Offline
                        idefix37 Sailor Moderator @raphipps1966
                        last edited by idefix37

                        @raphipps1966
                        The Meteogram is providing a forecast, not an observation.
                        Providing a screenshot would help.
                        Have you tried several models ?
                        Then this topic should clarify your question
                        https://community.windy.com/topic/10309/cloudbase-meteograms?_=1733352137019

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                        • T Offline
                          Thierry04
                          last edited by

                          Hello, what is the color code for the temperature? Are the colors related to an average temperature for the chosen location?

                          Weather2004W 1 Reply Last reply Reply Quote 0
                          • Weather2004W Offline
                            Weather2004 Meteorologist @Thierry04 | Premium
                            last edited by

                            @Thierry04 In terms for the color code for temps, the default one windy uses does not mean the average temp, but one scale used as a global average. We can change the temperature colors on the windy map. There's one scale I enjoy using and have used it for 5 years now. If you want to change your temperature colors, you could go on Windy, then press on the top right corner where it says "menu", then press settings, it's on the left of where it has 8 different things, then after that, scroll down to where it says "customize color scale", then after that, you should be able to change the scale to the desires you wish to have it on.

                            Gkikas LGPZG 1 Reply Last reply Reply Quote 0
                            • Gkikas LGPZG Offline
                              Gkikas LGPZ Moderator Meteorologist @Weather2004
                              last edited by

                              @Weather2004
                              https://community.windy.com/post/34280

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                              • 布 欧布 Offline
                                布 欧 @Korina
                                last edited by

                                @Korina said in How to read Meteogram:

                                @galtsev Hi, we do not offer globe yet, so it is not possible to view it.

                                hello,could i wanna asked a question?in the meteogram,for example,does 9am means time from 6am to 9am or 9am to 12am?which one is the correct answer?Therefore, the precipitation at 9 am shows that 5mm is the total precipitation from 6 amto 9 am or the total precipitation from 9 amto 12 am?Or the precipitation of the hour at 9 am?

                                THANKS A LOT!

                                Gkikas LGPZG 1 Reply Last reply Reply Quote 0
                                • Gkikas LGPZG Offline
                                  Gkikas LGPZ Moderator Meteorologist @布 欧
                                  last edited by

                                  @布-欧
                                  The 3hr precipitation shown at 9
                                  is the accumulated preci. from 6 to 9.

                                  布 欧布 1 Reply Last reply Reply Quote 1
                                  • 布 欧布 Offline
                                    布 欧 @Gkikas LGPZ
                                    last edited by

                                    @Gkikas-LGPZ

                                    ok,thanks!

                                    If it's clear at 9am, does it mean that it's clear from 6am to 9am ? be grateful to you!

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                                    • M Offline
                                      Mhuala | Premium
                                      last edited by

                                      Hi! Can somebody tell me what this '8 cm' means in the rainfall forecast? I know there's no chance of 80 mm of rainfall today :b

                                      acdb73d7-1602-4d8a-9e98-d79b12312e68-image.png

                                      Gkikas LGPZG 1 Reply Last reply Reply Quote 0
                                      • Gkikas LGPZG Offline
                                        Gkikas LGPZ Moderator Meteorologist @Mhuala
                                        last edited by Gkikas LGPZ

                                        @Mhuala
                                        8 cm of snow (equivalent to 8 mm rain).
                                        1000032356.jpg

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                                        • Yukitaka NishimuraY Offline
                                          Yukitaka Nishimura @Korina | Premium
                                          last edited by

                                          @Korina
                                          I was using Windy but had some questions. This article cleared up all my doubts at once and will be very useful for my future mountain climbing. Thank you.

                                          1 Reply Last reply Reply Quote 1
                                          • jay li 4J Offline
                                            jay li 4
                                            last edited by

                                            I AM NEW USEER FROM CHINA ,软件太好用了,谢谢

                                            Gkikas LGPZG 1 Reply Last reply Reply Quote 0
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