If we were to correlate DJF 500mb heights with AMO we get this. No IOD correlation on PSL so instead here's the 500mb heights for similar events. This suggests a mixed bag in terms of what to expect. It'll be a battle between +ENSO, +IOD, and +AMO forcing this winter. pic.twitter.com/rpr9kVBsiT

— Kaylan Patel (@WxPatel) October 27, 2023