I think all systems go for a major pattern change starting to take shape by next weekend..dominoes start falling within 7 days on the ensembles. We’ll see an initial push of cold air but the first western ridge will shift east across the CONUS while the PAC retrogrades and locks in a favorable PAC with high heights in the PNA and EPO domains. Meanwhile, -NAO and -AO will continue to build. While there will be cold to tap from Canada, I don’t anticipate wall to wall cold in this pattern over us, which will probably cause some panic here. But as Bob and PSU alluded to yesterday, we don’t do well when we have a PV sitting over us. I think its going to be a very active pattern with multiple chances. We won’t hit a home run with every chance but we’ll do quite well IMO. Active times ahead.
eta: 19-21st is a period to watch for sure.