In message , Waghorn
writes
0730Z radar imagery shows intense line convection moving into the SE
with an apparent bowing segment
on it

Pressure jump at Teddington and wimnd shify Chilbolton-
http://www.npl.co.uk/pressure/pressure.html
http://www.chilbolton.rl.ac.uk/weather/metdata.htm
associated with a squall line?
Nothing particularly of note in SE London as yet apart from gusting
wind and heavy rain,


Nothing of any note as it all passed through Chalfont St Giles. Only
some intermittent moderate rain. No significant wind gusts. 24-hour
rainfall total to 09z was 17.4 mm.

Norman.
(delete "thisbit" twice to e-mail)
--
Norman Lynagh Weather Consultancy
Chalfont St Giles
England