The 00z GEFS changed, dropping a strong 500mb low into the Bering Strait region next weekend. Seems like a really strong +WPO pattern shaping up.
Here is what +WP Oct looks like the following Winter:
Dec
January
February
Dec-Jan matches what my roll forward hot-Phoenix Summers is showing.. I wonder if we'll have a break in -PNA at times then (going to be hard with the persistency that has occurred in the N. Pacific recently).