Damian,There are many places around the world that seem to rarely use metars, but instead issue a TAF or two each day.Wouldnt it be possible to keep the TAF, in future cycles,for an airport as long as its valid?Using the TAF to generate the metar instead of another metar hundreds of miles away would be more accurate no?I dont know if AS would accept an empty metar with a taf for a station? Maybe you could code it and generate metar based on the taf before we download.This idea really come from the lack of reporting in Africa. Stations are far between and often the metar is generated using a station that can be 500+ nm away.Hope you can think about this and figure something out.JT

Hi,Actually that is how AS does things (sort of). TAF items and METAR items are separate. We collect them all as available from our sources and provide them in the client download snapshots. AS uses whatever is closest, and WILL use TAF instead of METAR IF the METAR report is old. Unfortunately because the METAR report may be auto-generated by other means, the TAF can sometimes get over-ridden. I can see how an option to prevent METAR auto-generation if a TAF is actually available for the station in question would be helpful, and will work on this in future builds.Thanks!

Thank you Damian.Got an example of something not quite right with TAF use.Current location is HSSS.HESN is ~500nm north.HAAG is ~300nm east.ASv6 options:TAF offOnline Updates onUse System Time onSystem Zulu Date/Time: 12/23/2005 22:46ZClosest station report:Metar:HSSS 000000Z 13005KT 10SM SCT050 SCT150 05/01 A2990 RMK AUTOGENTAF:HAAG 231600Z 231818 36010G20KT CAVOK TEMPO 0312 34015G25KT 3000 BLSA RMK AUTO GENERATEDThis is what I get when I fetch HSSS:Metar:HESN 231900Z 36004KT CAVOK 14/03 Q1017TAF:HSSS 231600Z 231818 36010G20KT CAVOK TEMPO 0312 34015G25KT 3000 BLSA1. The closest station report is using wrong TAF. Code is the same but wrong ID here.2. Wind speeds not what is forecasted. Instead seem to be using HESN winds.A couple of questions on this too...Where do the clouds come from?(SCT050 SCT150)How do you find pressure when there is none reported?Most likely some weather conditions I dont know that influence this. If there is an easy way to explaine this please do :)I hope this help you understand some of the problems with TAFs.JT

Shameless bump.Damian...please...quick reply so I know you have read this.Thank you.JT

Digging up this old post again :)Any idea when you will have something in place?Also noticed that ASv6 do not properly use the winds reported in TAF. Instead its using wind from a nearby station or only the first wind report in the taf.Been doing RTW race practice at many remote locations.Autogen overriding taf is really annoying at times because you cant really know what the weather is going to be. Its also creating odd situations, the weather might be 2500 vis and then next update its clear and then its back down to 2500 vis 10 minutes after that again.

Hi Jan,1) Will investigate. Is this with default station file or your modified file?2) Winds do not get read/processed via TAF reports since the format for wind reporting in TAFs is so variable.. we use either existing/closest METAR data or winds aloft information to decide the winds.Clouds can come from interpolation or copy from any weather station in the area...When no pressure reported we use the existing METAR pressure or that from the nearest valid source.Best,

HiIm using the modified file.Wind report in taf seems pretty consistent to me though. Not seen any other wind format than that used in metars.Edit:Ok found a few with different ways of reporting.Examples:VGEG 260606 34005/10KT 3500 HZ SCT016 BECMG 1416 35005/10KT 3000 HZ SCT015 BECMG 2022 36004/08KT 1000 M/FG BKN003 BECMG 0002 02005/08KT 1500 M/FG BKN003VEPT 260300Z 260606 27005KT 5000 HZ SKC BEC 1113 27005KT 4000 HZ BEC 0406 30008KT 5000 HZYBAS 260444Z 0606 12010KT CAVOK INTER 0612 21020G35KT 3000 TSRA BKN020 SCT070CB INTER 0506 21020G35KT 3000 TSRA BKN020 SCT070CBYBBN 260412Z 0606 10012KT 9999 SCT035 FM12 16007KT 9999 -SHRA SCT025 BKN050 FM23 10013KT 9999 SCT035 INTER 1823 4000 SHRA BKN015In the first one Im guessing the slash means from/to winds in that period.Second one is using BEC instead of BECMG.Then you have FMxx instead of FMxxxx that US based TAFs use.And I am guessing INTER is same as TEMPO.Either way the winds are there. Guess its just a matter of coding something to read it. Wich of course I am pretty sure you can do ;)I am more than happy to test any solution you come up with. Will be all over the world and in remote locations now that I am practicing for the RTW race.Keep up the great work. FS wouldnt be the same without you!