Good day, I have spent quite sometime to search for an answer, but I wasnt't lucky.
May be you can help me with an answer and or a link:
the TAF of Brazilian Airports contains a group of 3 letters after the "RMK",
i.e.: PGF= or PGH or PGS or PCW
Any idea? I have found something like pressure gradient may be involved...
Thanks, Tom
