Couple of things as i havent got much time right now.
Firstly some great data there guys and I will look through it properly later, dentist soon
As far as this Instability/Energy thats there, as you saw there was T/Storm activity last night but so far today things have been very quiet here anyway.
Very little shower activity inland showing right now but as Ozzys graphic shows there are some heavy showers/storms tracking this way. If that tracking stays constant then Cornwall, Somerset(me), Devon, Dorset look likely areas.
Currently 2 areas of raised CAPE sitting either side of those heavy showers, both 350+ with LI at -1 to -2.
Where the showers are at present is only 50-200 but still enough for something as the lightning data shows.
Watching with interest