Hi, it seems like the Charts app only takes first two digit of the gust while parsing the METAR.
The last digit of the gust is not included in the parsed wind data.
The last digit of the gust is not included in the parsed wind data.
Hello Donghyeon! Welcome to the forum.
Thank you for the feedback! This is an upstream issue, and frankly, it is quite understandable. I am currently trying to find appropriate specification documents to prove that the report you are referencing is in fact valid, and not human error.
So far, this is what I have found:
The maximum gust during the sampling period is reported when it exceeds the mean speed by 10 knots or more. It is indicated by the letter G which is followed by the gust value.
http://www.bom.gov.au/aviation/data/education/metar-speci.pdf
If gusts exceed the mean wind speed by 10kts or more in the 10 minutes preceding the time of the report, a letter G and 2 more figures are added to indicate the maximum wind speed
Meteorological Aerodrome Report (METAR) | SKYbrary Aviation Safety
Gfmfm will be included if gust speeds exceed the mean speed by 10 knots or more in the 10-minute period preceding the observation. If this condition is not met, Gfmfm is omitted. G indicates gusts and fmfm is the peak gust reported, using two or three digits as required.
Aviation Routine Weather Report (METAR)
Safe to say that there does not seem to be a perfect consensus or at least a slight lack of clarity. That said, I will bring this up to see if there is something we can do! It’s a small detail after all.
Kind Regards,
Malte
This is now fixed! Thank you for the feedback!
Kind Regards,
Malte
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