The current set is a NE track across the north Atlantic and looks set to
continue for the next week. So shepherding the extended high over the UK and
the lows to Iceland. So breaking the easterly track for most of the "summer"
and consequential failure to develop a blocking high over the UK.
This break in the jetstream "river" was preceded by an oxbow pattern around
the UK which broke through at the north end a week ago , just like oxbow
lake formation. Anyone know what pattern to look for that would precede the
return to an easterly track again. ?