Replying to @wessexweather@mastodonapp.uk

@wessexweather @openvibe
Ok so I had to pursue this, and I went to the actual WMO manual (link below). The documentation does not explicitly say to ignore transparent cloud, and it DOES say to count all cloud.

So from this I would conclude that you do count oktas of transparent clouds.

Relevant paragraphs: 15.1.4.1 and 15.2.2

library.wmo.int/viewer/68695/

Jul 5, 2026, 20:24 UTCen