Teleconnections to know about

[Iceresistance]

Here's some things to know about the Winter Teleconnections as we head into Winter:

Positive AO: No Cold air present or primed to dive southward, warmer mid-latitudes as well.

Neutral AO: Cold Air North, Warmer to the south, no changes soon.

Negative AO: This is where the fun begins, the Warmer Air surges north, displacing the cold air & causing the Polar Jet to dive down into the Mid-Latitudes, bringing cold & snow with it.

Positive NAO (North Atlantic Oscillation): No features that could cause a block in the Jet Stream

Negative NAO: Features a blocking pattern, forcing the Jet Stream to dive down into the CONUS, bringing cold & snowy weather with it as well.

Positive PNA: Alaska Low & Ridging in the Western USA, any cold air that comes will be dislodged towards the East Coast

Neutral PNA: Weaker features, allows the cold to spill into the Central & Southern Plains

Negative PNA: Alaska Ridge & West Pacific Trough, any cold air will be shoved into the Western USA

[jpbart]

Thank you.

I really needed this.  I looked on the NOAA Climate site and things look good for the next few weeks, and then turn the other way.  Am I reading that correctly?

[Iceresistance]

5 hours ago, jpbart said:

Thank you.

I really needed this.  I looked on the NOAA Climate site and things look good for the next few weeks, and then turn the other way.  Am I reading that correctly?

Yes, you're reading this correctly.

[StormchaserChuck!]

Most important is PNA/EPO over NAO/AO. 

I can feel WPO> NAO/AO too