Now visible at 1955Z between WSW and NW, these are
considerably higher than the other 'normal' Ci fibratus clouds
I can see nearby at about 30000ft. These fine wavy clouds
look to be at least 40000ft and taking on noctilucent
characteristics, except it is far too early and too low an
altitude (and in the wrong direction) for such clouds.
There is still over an hour left before sunset.
Elevation of there strands are well above 45 degrees.

Anyone care to look outside right now and comment?

Nigel (Romsey, Hampshire)