I was flying tonight and noticed that ASX seemed to be showing the wrong visibility for the current METAR report. The METAR was reporting 45KM and ASX was showing 10SM (roughly a third of the correct distance).I also noticed that it was decoding the METAR's 210@01 winds as 000@0.http://forums.avsim.net/user_files/194298.gifI tried bringing up other nearby airports in the Report screen and noticed that airports where the visibility in the METAR was expressed as nnKM were all showing as 10SM vis, whereas airports with visibilities expressed as nnnn (metres) were reporting the correct values.Has anyone else encountered this? Is this an issue with ASX's parsing of the KM-based visibilities or is there something I'm missing somewhere that explains this behaviour (my min surface vis setting is 0SM; max surface vis: 100SM; max upper vis: 100SM).(The station in the above screenshot is interpolated from a VATSIM-sourced report for NZPP, but I also observed this behaviour in reports at NCRG and NFFN which were neither interpolated or sourced from VATSIM.)Nick

Hi Nick,The winds were 210 at 1, which is calm so that is zero for the decode. Any "calm" wind is decoded that way.45KM is 27.96SM so it is correctly being decoded correctly as well.As far as I know, everything is OK here.Thanks,Jimhttp://www.hifisim.com/banners/hifi-community-sigbanner.jpghttp://www.hifisim.com/

The makes sense with regard to the winds, but am I still confused about the visibility: it looks to me that in the screenshot ASX is interpreting 45KM visibility as 10SM which is a lot less than 28SM.

Hi,10SM is the highest visibility that is decoded.Thanks,Jimhttp://www.hifisim.com/banners/hifi-community-sigbanner.jpghttp://www.hifisim.com/

>10SM is the highest visibility that is decoded.So I'll never see more than 10SM visibility with ASX? Why do the maximum visibility settings go up to around 150SM then?

Hi,10SM means clear conditions/unlimited visibility, but some users don't want to see 80 miles at altitude for example, so that setting can be used to draw distant haze to cut down on the unlimited visibility.Thanks,Jimhttp://www.hifisim.com/banners/hifi-community-sigbanner.jpghttp://www.hifisim.com/

Isn't that what "10+ SM" means, which is what ASX is showing me at the moment for "9999" and "CAVOK" vis reports. In the screenshot it's saying 10SM exactly and the visibility I was seeing in FS was only around ten miles - definitely nowhere near my maximum visibility settings.Actually, there's something weird going on there because looking at the screenshot again now, the temperature, dewpoint, altimeter, and visibility are all different in the METAR vs the decoded values.

Hi,It's also an interpolated METAR so it is blended data. I see what you mean about the visibility now.Thanks, Jimhttp://www.hifisim.com/banners/hifi-community-sigbanner.jpghttp://www.hifisim.com/

Thanks for the swift and patient responses, Jim. I'm not sure exactly what the cause of it is, but something was definitely up. If there's any more information that I can provide to help track this, please let me know.Nick