I know it's the 00Z but look at +240 on the ECMWF. Low pressure forming just south of Newfoundland could cause a sort of kink in the jet. High pressure north of it would would be forced further north and eventually, the high sat just below the uk might be displaced by this eastward traveling low. If the ECMWF went further than +240 it would be interesting to see where it puts that low. Anyway, will be interesting to see the 12Z when that comes out shortly.