To me, the difference between 10-15 and 15-20 is the Monday snow. It seems like Sunday and Sunday night, particularly 4pm-midnight are a slam dunk very heavy snow period
Think 1993-94 style. Basically weak lows with tons of moisture. PD2 as well. Yes mix is possible but this is not probable once inland from the south coast. Then again, I’ve been humbled by Mother Nature often enough….