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,

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regards,
david
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