I wonder however, we had blocking in December. Was that from an SSWE also? Plus ensembles bring back the negative NAO EOM. Perhaps it's a background state now?
I have seen this before, first burst comes in then looses steam and next burst is less and quick to sleet. I believe there was a good example which cause Philly to get 8 during a football game and we ended up with 1 to 3.