"Philip Eden" philipATweatherHYPHENukDOTcom wrote :

0850z W F1 5km HZ 3Ci300 06.8/05.2 1036.8
RMK: Some Ci appears to be ex-cotra, but no new trails.
Top of thick haze layer just above summit of Ivinghoe
Beacon (and therefore also observation point) ... say
250m amsl. Here, horizontal visibility reduced, but sky
a deep blue and sunshine already quite strong.

1150z NNW F2 20km 1Cu022 3Ci300 11.4/05.8 1036.2
RMK: Cu hum.

Philip Eden
Whipsnade 214m

PS The "civil day", Ron, is 00-24h, as opposed to the
climatological or rainfall day which is 09-09h, but I guess
you knew that ....