I have said this before, but in recent ENSO neutral/Nina/weak ass Nino winters, since 2016, the -NAO periods(mostly bootleg) have generally been too marginal (with stale/ Pacific origin cold) to get it to snow in the MA lowlands. Best outcomes have been in more progressive patterns during periods where the PAC was more favorable, mostly -EPO, with real deal cold air delivery. More of a thread the needle situation but it seems to work out better esp in a Nina. Need cold first! HL blocking during a CP moderate Nino has been gold- maybe we get that combo next winter, and we can see if that still works.