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    Surface Isobars

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    • T Offline
      TinaWx | Premium
      last edited by

      Surface Pressure contours are plotting Geopotential height instead of MSL. It’s been about a month now. I have the slider height set at surface, I’m selecting pressure in the menu. Is there something else that needs to be adjusted?

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

        @TinaWx
        In the menu select Pressure

        DFC765AE-C344-48AF-AE4E-3AB75F5ADA3B.jpeg

        In the browser version you can do it directly in the bottom right corner of your screen.

        T 1 Reply Last reply Reply Quote 0
        • T Offline
          TinaWx @idefix37 | Premium
          last edited by

          @idefix37 yes, I did both but it doesn’t plot the correct values of MSLP on the Surface isobars.

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

            @TinaWx
            To get Isobars which show the pressure in hPa at surface level, you need to select Pressure.

            Geopotential heights are the elevation of a pressure surface that you choose using the Altitude slider, for example 500hPa. In Windy these heights are expressed in meters.
            Personally, I see no use for geopotential heights at ground level. Ignore them.

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