In the aviation world, they don’t use AM/PM times. Instead, all times are assumed to be AM unless they’re labeled NOTAM.

https://explainxkcd.com/3024/

  • ℍ𝕂-𝟞𝟝@sopuli.xyz
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    6 hours ago

    So I actually went and tried to decode this because I was horrified that I didn’t understand half of this. Turns out I don’t usually see freedom units or volcanic ash tornadoes.

    • METAR - That’s just specifying this is a meteorlogical report as opposed to something else like a TAF or a NOTAM
    • KNYC - This should be the airport the report is given for, KNYC doesn’t exist, but if it did, it would be somewhere in the US since it starts with a K
    • 251600Z - means the report is dated for the 25th, 16:00 UTC
    • 18035G45KTS - this is the wind, coming from 180 degrees, 35 knots gusting 45, so a lot of wind
    • 6SM - so this was weird, but it’s just US weirdness, visibility 6 statute miles, so equivalent to the 9999 message everywhere else
    • VCFCFZVA - in the vicinity funnel cloud, freezing, volcanic ash (freezing volcanic tornadoes, yay!)
    • +BLUP - heavy blowing unknown precipitation, so a lot of something coming your way
    • NOSIG - no significant change expected, this is your life now
    • LTG OHD - surprisingly accurate, lightning overhead
    • A3808 - again, weird US shenanigans, altimeter setting 38.08 inches of mercury, which is not really consistent with that major storm but I digress
    • RMK - remarks, this is how meteorogists say “oh, by the way”
    • A02 - I’m an automated weather station who also can differentiate precipitation (pretty high strung for someone who just announced +BLUP)
    • SLP130 - sea level pressure is 1013 hPa, which means that this airport is at around 2100 m above sea level
    • mkwt@lemmy.world
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      6 hours ago

      The altimeter setting should be referenced to sea level as well. Which means it doesn’t agree with the SLP.

      • ℍ𝕂-𝟞𝟝@sopuli.xyz
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        5 hours ago

        I was giving a benefit of doubt and assuming it must be a QFE setting or IDK.

        38.08 is veery high for a QNH anyways