0900z SW F2 25km 1Cu020 7Ci250 12.0/07.6 1019.1
RMK: Also a few patches of dense cirrus (no more than
one okta) at c.20,000ft
1200z SSW F2-3 40km 1Cu035 3Ci250 7Ci300 15.1/05.3 1018.9
1500z SSW F2 30km 1Cu045 3Ci250 6Ci300 17.0/05.0 1018.4
RMK: Just a trace of cu hum. Also one patch of lenticular cloud
at low cirrus level, say 18-20,000 ft with hint of iridescence
1800z SSW F2 30km 3Ac180 7Ci300 16.0/06.0 1018.3
RMK: Lower cloud layer now as some shading and sharper
edges, so I'm calling it Ac. There's still a little Ci around 25000'

Philip Eden
Luton (Round Green) 155m