Severe thunderstorms, early morning July 28 2014 in Southeast England.

[JoshStundon1]

Hello all, I am the visually impaired poster that has posted a few times on here. I was curious what was the synoptic and mesoscale environment behind the severe thunderstorms in southeast England in the early morning hours of July 28 2014? I am aware that the storms from the 17th through the 19th of July were caused by a Spanish plume setup, however, unsure about 28th July setup as I can’t find any convective outlooks for that day. Brighton was particularly badly hit, with frequent lightning, flooding rain and small hail. 

[Jamie M]

Based on that chart it looks like to me low pressure moving south and clashing with the warmer air further south.

FAX chart has various troughs and fronts over the UK

[JoshStundon1]

Interesting! I’m guessing these storms were mostly elevated? Did they move north from France?