Webberweather53
Meteorologist
This is different, that’s at 10mb and it shows warming of the Stratospheric polar vortex/some displacement, this is good for winter weather lovers as it would likely bring a TPV along with it, 500mb is different
If the -EPO goes up as shown on the GEFS, that'll shut off the favorable wave 1/displacement forcing on the TPV & it'll likely recover without a sudden stratospheric warming event or major disruption in the following frames, arguably strengthening more after the -EPO develops actually, unless the Urals high remains strong, in which case we could open the door to a split.
The key to getting more PV displacement/disruption is keeping the heights low over the Bering Sea & NE Siberia.