In an earlier blog post comment, a reader pointed out that on the latest version of these maps there is more detail: the maps show where the lightning flashes are being detected, so giving an idea of intensity. See http://www.blitzortung.org/Webpages/index.php?lang=en. These maps really tell you a lot. It shows no thunder or lightning at present in the UK. Over the Alps it is still intense and now in Russia as well.
G0LRD tells me this data is also available on the maps I linked to if "stations" are selected.