There maybe northern blocking, but to my very untrained eye all I see is a big strong chunk of PV sat over Canada/Greenland sending weather systems off the Atlantic to the UK. Until that big chunk of PV does something else or disappears it just looks windy, wet with snow over high ground. Of course its not as simple as that due to the SSW, which I'm sure someone will point out. But if the SSW was not happening it just looks like good old english wintry weather, cold and damp down south and wintry in the the north.