Chalfont St Giles - Wednesday 12th December 2007
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0630z CALM 15km SKC -04.3/-05.4 1036
RMK: Quite a heavy hoar frost. Ground frozen hard. There may
be some Ci to the west but impossible to be sure.

0900z CALM 20+km 1Ac120 -04.1/-05.2 1037
RMK: Ac on western horizon. Also 2 oktas Ci to the west
A beautiful morning.

24-HR STATISTICS
Max (0900-0900z): 7.7 at 1445z
Min (0900-0900z): -4.5 at 0745z
Grass min (1500-0900z): -7.3
Rain (0900-0900z): Nil

1200z CALM 8000 FU 1Cu020 02.7/01.9 1037
RMK: Temp has struggled this morning. There's not been a
breath of wind to mix the air. A lot of smoke in the air from coal
and wood fires in the village. It's just hanging in the stagnant air.
Cu hum on the SW horizon. There's also some high Sc and Ci
down there. It's a glorious sunny day, though.

1500z CALM 8000 FU 1Cu030 04.2/01.1 1037
RMK: Hoar frost has persisted in the shade and in some places
that got a bit of sun. Ground still frozen. Temperature is 3 deg
lower than it was at 15z yesterday and is falling quickly. Still some
high Sc and Ci far to the SW.

Norman.
--
Norman Lynagh
Chalfont St Giles, Buckinghamshire
85m a.s.l.
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