Cut off low

*tuts like an expensive plumber or garage mechanic*

“Well, there’s yer problem, innit?”ma_sy“See, what you’ve got ‘ere is that Sarf Atlantic ‘igh forming a ridge of raised pressure, which is cuttin’ off that low pressure area, isolatin’ it over the Cape coast, innit?

I’d say you’re buggered, squire.”

Full explanation.