0900z NE F3 30km 3Cu025 5Ci300 10.0/03.8 1037.2
RMK: Ci very tenuous. Highest 09z barometer this year.
1200z NE F3 30km 1Cu035 7Cs350 13.8/04.4 1037.4
RMK: I'm half-guessing there's still an extremely tenuous
veil of Ci or Cs - it's practically invisible to my eyes but
sky is an unnaturally pale blue for a polar air-mass. Bar
has stopped rising in response to the diurnal atmospheric
tide but this may well be the highest in this part of the
country in June since 1962.

Philip Eden
Luton (Round Green) 155m

"Change in the Weather", Continuum, June 2005