Today's new C3S ensemble mean forecast 500mb anomaly pattern for this coming January looks like a classic "east-based" El Niño, with the Aleutian Low displaced eastward towards the Gulf of Alaska/just off the US West Coast.

Displacing the Aleutian Low & Pacific jet stream… pic.twitter.com/yY2SNIwivr

— Eric Webb (@webberweather) August 10, 2023