That map doesn’t look like a +pna to me. It’s tough to tell with the hgt lines but doesn’t look like it. I don’t see any downstream trough in the east. Unless you’re talking about some garbage hgt rise in the west.
I don’t recall +pna in December 18 or January 2019. We had a dateline ridge with a -pna. I remember we had blocking in early December that produced a snowstorm north/west. January 2019 we had recorded breaking warmth with a southeast ridge and -pna combo.
March 2018 we had a snowy weekend with a -pna/-epo combo.
The darkest of the blues are over the Aleutians and ridge is in the west. I don’t think that’s a ideal snap shot imo.
But I agree, this is more of a niño look then Niña for December
If we get a flow from Canada, their above normal is below here, it could potentially work for us as we work into mid December.
Above all else we need a good pacific to have a chance
Agree. But it depends on where the ridge sets up. If it’s not off the west coast then the southeast ridge won’t pump that much. If we were entering a -epo/-pna pattern then I would say absolutely the ridge will be on roids
A fast pac with a +pna could allow disturbances to be more progressive also.
Just keep in mind their above normal is probably below normal for us. So if the flow is from Canada it will get cool in the East. By late December/early January Canada’s avg highs are way below freezing