Of course, just in time for Christmas Eve
My feeling on that is that its probably temporary, as we also saw a period of east-based forcing during the fall, as well...but it just didn't last. Also, if you recall, January 2016 had a period of Modoki like forcing that coincided with the blizzard, so we need to remember that there are periods that deviate from the DM mean state....everyone agrees that is in fact a basin-wide event, and not a true Modoki, so some stretches of east-based forcing shouldn't shock anyone.