Graham P Davis wrote:

On Wed, 26 Oct 2016 11:43:59 +0100
"Eskimo Will" wrote:

On another note
big arguments over whether 7/8 Cu should be reported or not when it
was obvious large holes in the cloud field were apparent but little
blue sky visible. Another sticky point was the under-estimating of
cirrus amount, putting dark glasses on usually revealed much more
than reported.

I was told very early in my career that one should never report more
than half-cover of Cu. I didn't agree at first but it was pointed out
to me that one should judge the amount by only including the base of
the cloud in one's estimation of the coverage; the sides of the cloud
should always be counted as being part of the sky, not the cloud. When
I applied that rule and mentally switched the sides of the cloud from
yellow, say, to blue to match the sky, I don't remember ever having to
report more than 4/8 of Cu.


What would you report as the total cloud cover in that case?

--
Norman Lynagh
Tideswell, Derbyshire
303m a.s.l.
http://peakdistrictweather.org
@TideswellWeathr