Originally Posted by
The B Word
.... As for introducing your own bespoke weather colour codes - well that just beggars belief!
Please see above from ETOPS: "
Just to correct a bad piece of fake news from the OP, the forthcoming met uploads from Pilotaware are standard Metars with visibility in nautical miles as is usual in the UK.
The colour coding proposed has absolutely nothing to do with military operations - many light aircraft pilots will have no knowledge of RAF procedures anyway."