As long as that strong northern Pacific ridge is there, so will the ridge over the western Atlantic. What's going to be happening is, that ridge over the northern Pacific is going to make the jet stream dip over the west, while the jet rises over the east. As long as that ridge is there over the northern Pacific, this will not allow the jet to dip over the east. There will not be any deep cold air surges south and east as we approach mid-month. There could be some transient cold shots, but I doubt there will be any solid cold air that would hold it's place for many of days. That ridge over the northern Pacific needs to go, if not, the ridge over the western Atlantic would hold it's position as well. Or, of course the ridge would need to translate pole ward towards Alaska to allow the jet to dip over the east.
Looking ahead on the 12z EPS from today, the strong ridge over the Pacific is no longer there and the ridge over the east starts to relax. This look is more of a "relaxed" pattern and colder. So, if this pattern happens, the southern stream would probably become less active mid to late month.
Overall, the pattern does not look that exciting. I'm hoping the pattern will flip fast because each time a warmer pattern happens, the winters become shorter. The winters here are already short as is. Who knows, after this horrible warm spring like pattern, the bottom falls out and we end up with a massive snow storm by late month. Something needs to give fast!
