Yes - this is what I was posting a few days ago re: the stratospheric amplification of the MJO signal, hence the propensity for increased warmth/cutters over the Dec 20-Jan 5 period. The MJO is actually in phase 6 right now. RMM plots suffering from rw/kw interference. The ECMWF has been attemping to send the wave into the null phase since p 3, and has been correcting since. The stratospheric driving augments the MJO signal, and there's no physical reason for the ewd propagation to cease. 
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