"Philip Eden" philipATweatherHYPHENukDOTcom wrote :

0850z W F1-2 800m RA 3St001 6St004 8St010 09.6/09.0 1002.4
RMK: Mod rain since 0630z. Sudden reduction in vis to the N and
NW due to some sort of advancing squall line ... yes, by 0910z it
has come over with a sudden veer and increase in wind to NNW F6
and +RA

1220z NNW F5 15km RERA 2St008 3Cu012 8As080 08.5/08.1 1007.2
RMK: 8mm since last ob, most of which fell between 0900 and 1030z.
Temp fell to 07.6 during this period, and the present 08.5 is
seriously
cold for lunchtime in mid-May in southern England.

Philip Eden
Whipsnade 214m