The late month could be, if everything works well, very epic, even beyond this next two weeks with several potential events. The Euro has the MJO in the low amp/c.o.d into late December/Early January. @GaWx has noted that essentially every low amp pass through 8 has coincided with well BN temps, but that high amp passes were not always cold in the east.
East Asia should become more favorable soon, to allow west coast ridging downstream as well.