Typical warm sector stratocu layer. Beautiful on top with good vis, more or less solid (and smooth) relatively low cloud layer, gloomy underneath, but at least the vis hasn't been too bad beneath. Come the weekend, and a more southerly wind and increasing pressure, then I would expect vis to deteriorate, especially if wind backs south easterly and brings in crap from the continent which is not easily dispersed in calm high pressure conditions..
Of course bellend may be right, and it is all just a load of cowfart.