The models are suggesting that blocking highs develop right the way across from N.E. Asia to the (western) U.S., placing pressure onthe PV and pushing it over to our side i.e. close to our over the UK.
It brings an epic cross polar flow to the U.S., although it's not a smooth affair on ECM and GFS chooses to deflect it out across the Atlantic.
It all starts with a bit of PV energy trracking well south over the Pacific and providing support for a high latitude block there, which then encroaches on the Pole. The critical point for this is now at around 120 hours, so we've got a good chance of seeing the process get started. Whether it will succeed in displacing the PV right over to the UK remains to be seen.
It's something to watch. That's it really... at this stage.
Originally Posted by: Stormchaser