3-way battle makes this forecast tricky

My forecast for Monday and Tuesday in Snoqualmie/North Bend vicinity..
Monday am: flurries - trace accumulation and arrival of light easterly gap winds
Monday pm: snow arrival ~2-3pm, 1-4" through midnight, moderate gap winds prevalent (~25-35 mph gusts)
Tuesday am (12a-12p): 2-6", gap winds persist but begin to wind down
Tuesday pm: should warm enough for any linger precipitation to fall as rain
Extended: we should dry out for at least Wed into Thursday. Will update as we get closer.

Commentary:
Here comes the larger storm Cliff Mass is now calling "Slushmageddon". What does this mean for Snoqualmie/North Bend?
Tricky forecast indeed, but this afternoon and overnight I expect a hard fought 3-way battle between the potent low front approaching vs. gap winds vs. warm air. Unlike Seattle-area, I expect gap winds to fend off warmer air (at least for a while), but at the same time, how much snow can the gap winds eat remains to be seen. In a nutshell, for snow totals I'm going with roughly half of what the most favorable model runs are showing.