Talk about the AO here

[weatherwiz]

Started talking a little about it inside the other thread but it would be best to just keep all discussion on the AO here. We have seen a VERY impressive -AO over the past few weeks or so and it's also been pretty impressive at how long we've been in a -AO state. According to Kevin from Gibbs it's quite baffling as nobody can really explain this. Looks as if the AO will continue to stay negative for the time being and in impressive fashion.

[nzucker]

CPC shows that the AO will rebound from its historically negative state to just slightly negative, but another drop may be forthcoming in the long range if the CPC ensemble guidance is to be believed:

12z ECM also shows a strong -AO pattern at Day 10, but the brunt of the cold air is getting pushed towards Asia with higher heights remaining over Canada from the disintegrating block:

[weatherwiz]

Could see some sort of moderating period of short-term warm period once the AO/NAO sort of relax but then if both tank again depending on what we see block setup wise we may not be done with some big time cold...and of course storm potential.

I'm know there are a few in their winter outlooks who stated that after December and at some point in January we'd start seeing warmer temps but also stated that when we do see the NAO/AO tank we will see some pretty cold periods...I wonder if we will start heading that direction...warm periods followed by extreme cold shots as the NAO/AO tank then we warm once they relax.