"Philip Eden" philipATweatherHYPHENukDOTcom wrote:

0850z (RTD)
ENE F1-2 25km VCFG 1Ac080 7Ci250 00.0/-01.6 1038.1
RMK: Such a superb morning I went for a long walk, hence RTD.
Fog almost fills the Vale of Aylesbury although hills poke through;
top of fog can therefore be quite easily pinned down to 140-150m
amsl. Excellent vis above it. What appears to be the leading edge
of quite a thick layer of Ac low in the W sky; one or two scraps
of Ac lentic elsewhere; Ci shows marked undulations; no refraction
phenomena. Ground frozen hard. Cotra.

1220z N F1-2 35km 1Sc070 7Ci250 04.2/-01.4 1037.7
RMK: Hoar frost has melted, but the ground is still well-frozen
in the shade.

Philip Eden
Whipsnade 214m