"Philip Eden" philipATweatherHYPHENukDOTcom wrote :

0850z NW F2 100m FG OBSC 03.4/03.4 1020.4
RMK: Noted patchy fog forming in Dunstable around
22z Sun, but it remained clear and brightly moonlit up
here till well after midnight. At ob time position of
sun occasionally visible suggesting a fog top between
800 and 900ft amsl.

1150z NW F1-2 700m FG 8St001 06.1/05.9 1020.0
RMK: Vis 100-150m until 1130z, improved markedly
since then

Philip Eden
Whipsnade Obsy 229m Lodge 214m