January 31, 20242 yr Dears, I was curios to understand, for NOAA weather, what the download interval is. And if there is a chance to freeze the download. Scenario I am often faced: between the planning and execution of my flight might take 1 day (free time is whatever it is....)... but weather updates in LNM in the meantime so I see discrepacies with what I execute... Greetings, Antonio "Arrex" Arreghini
January 31, 20242 yr I think the download interval is 15 minutes or so. There is no way to use historical weather except if you use X-Plane. What simulator do you use? Alex Alex' Projects: Little Navmap
January 31, 20242 yr Author Fs9 (in offline mode) and fsx as a testbench for bugs... No i know there is no historical weather, was wondering if you can pause downloads somehow.... Greetings, Antonio "Arrex" Arreghini
January 31, 20242 yr No pause, sorry. The METAR data is stored internally in memory and would be gone after a startup. Alex Alex' Projects: Little Navmap
January 31, 20242 yr I've got an idea, but never try this kind of trick, so don't know if it'll work. Maybe it's possible to download** from the NOAA weather service manually grib and METAR files to fake XP11 directory and then load them to LNM using XP11 settings in LNM? I notice there is also possibility to load real weather from XP12 directory, but there is more grib files there (LR changed weather engine), so XP11 solution seems better. Does LNM check only winds in .grib and METAR in .txt file from XP11, or it is necessary to download/create another files in fake XP11 directory? Regards, Piotr **downloaded files can be kept in archive, so possible have real weather from any archived day 🙂 Never give up ... - here are details of the whip-round: https://zrzutka.pl/en/pewr2d -> to help my younger son fights against Acute Lymphoblastic Leukemia (blood cancer).
January 31, 20242 yr 1 hour ago, Gason71 said: Maybe it's possible to download** from the NOAA weather service manually grib and METAR files to fake XP11 directory and then load them to LNM using XP11 settings in LNM? You can download from here (https://tgftp.nws.noaa.gov/data/observations/metar/cycles/) but there is a catch. The files for the last few hours are populated slowly with METARs as they are dropping in from airports and fill up slowly. This means you have to download the last three files starting with the current one (by UTC) and merge the data from all files by comparing the METAR dates. Despite being text you cannot use Linux/Unix tools like "sort" and "uniq" to do this since the format uses two lines per METAR. Probably a Python expert can do this in 15 minutes? The GRIB files are another story. But I think airport weather is more important. Alex Edited January 31, 20242 yr by albar965 Alex' Projects: Little Navmap
February 1, 20242 yr Author BTW, the wind on noaa (and metar in general) is true, not mag. Is LNM taking this into consideration? Earlier today taking off from Sydney i was expecting a certain runway, but i was given another.... and the magdec of 13 at YSSY degrees would explain the problem.... Greetings, Antonio "Arrex" Arreghini
February 1, 20242 yr 3 minutes ago, arrex said: Is LNM taking this into consideration? Sure. Always did. The LNM weather report shows mag (optional true as well) and the METARs show true. What add-on assigns a runway to you is a different (not mine) story. Some simulators are also not very accurate with their weather depiction. Alex Alex' Projects: Little Navmap
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